The uneven distribution of medical resources has led to increasingly frequent patient mobility;however, the interaction between this phenomenon and the healthcare supply-demand relationship remains underexplored. The ...The uneven distribution of medical resources has led to increasingly frequent patient mobility;however, the interaction between this phenomenon and the healthcare supply-demand relationship remains underexplored. The present study constructed the 2023Cross-City Patient Mobility Network in China using one million patient mobility data records obtained from online healthcare platforms. We applied urban network analysis to uncover mobility patterns and used the coupling coordination degree model to assess healthcare supply-demand relationships before and after patient mobility. Explainable machine learning further revealed the impact of supply-demand coupling on patient mobility. The results indicated the following: Patient mobility followed administrative boundaries, although megacities serve areas beyond provincial borders;The scale of healthcare supply and demand displayed a multi-centric spatial pattern with a general decline from east to west, and these characteristics of demand distribution were further solidified by patient mobility;Cities with low supply-demand coupling and undersupply experienced patient outflows, while cities with high coupling and oversupply attracted them. In turn, patient mobility helped balance healthcare supply and demand, optimising the coupling relationship across cities. Thus, this research not only provides a methodological reference for understanding the interaction between patient mobility and healthcare systems but also offers empirical insights for public health policy.展开更多
Urban resilience is an emerging research topic of urban studies, and its essence is described by the ability of cities to resist, recover, and adapt to uncertain disturbances. This paper constructs a "Size-Densit...Urban resilience is an emerging research topic of urban studies, and its essence is described by the ability of cities to resist, recover, and adapt to uncertain disturbances. This paper constructs a "Size-Density-Morphology" urban ecological resilience evaluation system, uses a coupling coordination degree model to measure the degree of coupling coordination between urbanization and ecological resilience in the Pearl River Delta from 2000 to 2015, and conducts an in-depth discussion on its spatiotemporal characteristics. The results show the following.(1) From 2000 to 2015, the urbanization level of cities in the study area generally increased while the level of ecological resilience declined. The coupling coordination degree between the two systems decreased from basic coordination to basic imbalance.(2) In terms of spatial distribution, the coupling coordination degree between urbanization and ecological resilience of cities presented a circular pattern that centered on the cities at the estuary of the Pearl River and increased toward the periphery.(3) Ecological resilience sub-systems played variable roles in the coupling coordination between urbanization and ecological resilience. Specifically, size resilience mainly played a reverse blocking role;the influence of morphology resilience was generally positive and continued to increase over time;the effect of density resilience was positive and continued to decline and further became negative after falling below zero. The main pathways for achieving coordinated and sustainable development of future urbanization and ecological resilience in the Pearl River Delta include: leading the coordinated development of regions with new urbanization, improving ecological resilience by strictly observing the three areas and three lines, adapting to ecological carrying capacity, and rationally arranging urban green spaces.展开更多
In this paper,the Taixin Integrated Economic Zone in Shanxi Province is taken as the research object,and the coupling coordination degree model and bivariate spatial autocorrelation model are used to judge the couplin...In this paper,the Taixin Integrated Economic Zone in Shanxi Province is taken as the research object,and the coupling coordination degree model and bivariate spatial autocorrelation model are used to judge the coupling coordination and spatial-temporal correlation between urbanization and ecosystem service,and the hotspot analysis is used to judge the spatial-temporal trend of urbanization and ecosystem service.The results show that:(1)The urbanization level from 2000 to 2020 continued to rise,the areas with relatively high urbanization were concentrated in the central part of the study area,and the relatively high terrain areas on both sides of the study area,the urbanization was relatively slow,and the hotspot areas with highly significant and significant urbanization level from 2000 to 2020 were distributed as bands in the central part of the study area and the area was rising,and there was no Cold spot area distribution;between 2000 and 2020,the ecosystem service value in the study area increased by 2.6800×10^(8) yuan.Over these two decades,it exhibited a development trend that first rose and then declined.The woodland and grassland agglomeration areas were located on the two sides of the study area,forming highly significant and significant hotspots.Conversely,the central and northeastern parts of the study area were characterized by concentrated man-made land surfaces and croplands,resulting in the formation of highly significant and significant cold spots.(2)In the central part of the study area where man-made land surface and cultivated land are concentrated,the coupling coordination between urbanization and ecosystem service is in the intermediate dislocation and mild dislocation interval;the woodland and grassland concentration areas on both sides of the study area are ecologically fragile,and the coupling coordination between the two is in the level of less than intermediate dislocation.(3)From 2000 to 2020,urbanization and the value of ecosystem services were both negatively correlated,although the correlation coefficient was low.In the central and northeastern parts,urbanization and ecosystem service exhibited patterns of high-low,high-high,and low-low clustering.Conversely,on both sides of the study area,most of the clusters showed a low-high pattern.展开更多
Since the implementation of the reform and opening-up policy,China has undergone a period of rapid development.However,this urban expansion has been accompanied by significant ecological challenges.Therefore,understan...Since the implementation of the reform and opening-up policy,China has undergone a period of rapid development.However,this urban expansion has been accompanied by significant ecological challenges.Therefore,understanding the relationship between urban expansion and ecological sustainability is crucial for future urban planning.This study analyzes land use data to investigate the spatiotemporal dynamics of urban agglomeration expansion from 2000 to 2020.Using MODIS satellite data,this study constructs a Remote Sensing Ecological Index(RSEI)model to assess ecological quality changes over the past two decades.Additionally,an improved coupling coordination model is applied to examine the interaction between urban expansion and ecological quality and to evaluate the spatiotemporal trends of their coordination.The results indicate that:①From 2000 to 2020,urban expansion in the Henan section of the Yellow River Basin followed a pattern of“growth-growthdecline”.Pattern recognition analysis indicated that both urban agglomerations and individual cities primarily expanded through edge extension and infill development,while enclave-style expansion occurred in only a small portion of the region.②Between 2000 and 2020,the ecological quality of urban agglomerations in the Henan section of the Yellow River Basin showed a slight improvement.RSEI values ranged from 0.4 to 0.7,indicating moderate ecological quality.Ecological quality exhibited a spatial pattern of being higher in the southwest and lower in the northeast.Significant declines in ecological quality were primarily concentrated in urban built-up areas,forming a patch-like distribution.Conversely,notable improvements in ecological quality occurred mainly in the mountainous regions of the southwest and north.③Between 2000 and 2020,the coupling coordination level of urban agglomerations showed an increasing trend.Coupling coordination values ranged from 0.248 to 0.734.Most cities were near an imbalance between urban expansion and ecological quality,while Zhengzhou was the only city to consistently maintain coordinated development over two decades.Spatially,highly imbalanced areas were mainly concentrated in the western and southern Henan sections,particularly in Sanmenxia and Luoyang.Conversely,areas with high coupling coordination were centered around Zhengzhou,showing a radial expansion pattern in recent years.展开更多
To comprehensively understand the law of urban-rural relationship and propose scientific measures of urban-rural coordinated development in Northeast China,this study uses the coupling coordination degree model and ge...To comprehensively understand the law of urban-rural relationship and propose scientific measures of urban-rural coordinated development in Northeast China,this study uses the coupling coordination degree model and geographically and temporally weighted regression(GTWR)model to analyze the spatial-temporal patterns and the corresponding driving mechanisms of its urban-rural coordination since 1990.The results are as follows.First,the urban-rural coupling coordination degree in Northeast China was very low and improved slowly,but its stages of evolution is a good interpretation of the strategic arrangements of China's urbanization.Second,the urban-rural coupling coordination degree in Northeast China had spatial differences and was characterized by central polarization,converging on urban agglomeration,which was high in the south and low in the north.Moreover,the gap between the north and south weakened.Third,the spatial-temporal evolution of the urban-rural coordination relationship in Northeast China was influenced by pulling from the central cities,pushing from rural transformation,and government regulations.The influence intensity of the three mechanisms was weak,but the pulling from the central cities was stronger than that of the other two mechanisms.Furthermore,the spatial difference between the three mechanisms determines the spatial pattern and its evolution of the urban-rural coordination relationship in Northeast China.Fourth,to promote the development of urban-rural coordination in Northeast China,it is essential to advance urban-rural economic correlation,enhance the government^role in regulating and guiding,and adopt different policies for each region in Northeast China.展开更多
The integration of agricultural heritage and tourism industry contributes significantly to regional heritage protection,rural revitalization,and cultural inheritance.Based on the coupling coordination degree model,a q...The integration of agricultural heritage and tourism industry contributes significantly to regional heritage protection,rural revitalization,and cultural inheritance.Based on the coupling coordination degree model,a quantitative research was conducted to study the integration of agricultural heritage in terms of the jasmine and tea culture system in Fuzhou with the local tourism industry.The results showed that both the development of Fuzhou's jasmine and tourism industries have advanced significantly and are currently leading in the country.However,they are not developing at the same pace.The results also showed that the coordination degree between Fuzhou5s jasmine and tourism industries have increased in recent years,with deepened mutual effects and improved coordination.Moreover,the coupling coordination degree has been rising over the past 13 years,with the coupling coordination level transforming from''extreme disorder''to"quality coordination,demonstrating a slow integration progress of Fuzhou's jasmine with the tourism industry at the early stage,but a sound development momentum at the later stage.展开更多
Based on the general requirements of the coordinated development of"ecological livable"and"affluent life"in the rural revitalization strategy,the evaluation index system of desertification control ...Based on the general requirements of the coordinated development of"ecological livable"and"affluent life"in the rural revitalization strategy,the evaluation index system of desertification control was constructed,the interaction between desertification control and regional social economy and the internal space-time coordination mechanism were explored,and the quality of desertification control and its coordination degree with regional economic development were quantitatively analyzed.The decoupling mechanism of desertification governance society economy system were analyzed,and the high level for the government to promote desertification governance,constructing ecological economy coordinated development pattern to provide decision basis to Xizang desertification governance-social economic system interaction and coupling coordination development as the research object,introducing the coupling decoupling model to measure the coupling coordination model and system coordination and decoupling decoupling.Desertification control in Xizang shows a trend of gradual improvement,but the overall level is still not high and there is a lot of room for optimization.The coupling coordination degree of desertification control-social and economic system is in a steady fluctuation trend,rising from D value less than 0.55 in 2004 to 0.87 in 2018,in a state of coordinated development(good),and grey prediction analysis shows that D value is in a continuous rise.The coupling coordination degree of the six prefecture-level cities in Xizang and Ngari region is different in time and space,but the overall development trend is coordinated.The development index of desertification control and the socio-economic development index show the interaction of strong decoupling,strong negative decoupling and weak decoupling,and there are interaction effects of desertification control,economic development and social development at different scales.展开更多
Urban Comprehensive Carrying Capacity(UCCC)can describe the development of a city and is an important guarantee for its sustainable development.Production-Living-Ecological Space(PLES)is an important guideline for the...Urban Comprehensive Carrying Capacity(UCCC)can describe the development of a city and is an important guarantee for its sustainable development.Production-Living-Ecological Space(PLES)is an important guideline for the optimal development of China's land space in the new era.Based on the PLES,we construct a UCCC index system and analyzed the spatial and temporal distribution characteristics of the UCCC of each city in Zhejiang Province from 2006 to 2020.In addition,a coupling coordination degree model and an obstacle degree model are introduced to analyze the coupling coordination degree of the development of PLES of each city and the main constraint indicators,respectively,and a GM(1,1)model is used to predict the UCCC of each city in Zhejiang Province from 2021 to 2025.The study indicates that(1)the UCCC of each city is steadily increasing,with a growth rate of over 30%in 15 years.(2)As of 2020,the highest degree of coupling coordination reaches only 0.508,and it remains a major challenge for cities to improve the coordination degree of land use.(3)Some production space and living space indicators are the main obstacle indicators hindering the development of the UCCC in Zhejiang Province.(4)The forecast results show that the UCCC in each city will still maintain an upwards trend in the following 6 years and will gradually reach a high carrying capacity level.展开更多
Based on a total of 16 indicators selected from the tourism and transport industries,an evaluation index system of the coupling and coordination development level of tourism and transport is constructed.The entropy va...Based on a total of 16 indicators selected from the tourism and transport industries,an evaluation index system of the coupling and coordination development level of tourism and transport is constructed.The entropy value method and the coupling coordination degree model are used to conduct an empirical study on the development level and coupling coordination level of the transport and tourism industries in Chengdu City from 2011 to 2020.The results show that,on the whole,the coupling coordination degree of transport and tourism in Chengdu is poor and has been in a state of mild to moderate dysfunction.The development level of tourism lagged behind the development of transport from 2011 to 2012,and the two were in a state of mild dysfunction.However,from 2013 onwards,the development level of tourism was prioritized over the development level of transport.This shift caused the coupling coordination degree of the two industries to decline sharply to 0.23305 in 2013.The development level of the tourism industry increased again,reaching 0.34206 in 2019,which marked an improvement.Consequently,the coordination degree of the transport and tourism industries evolved from moderate dislocation to mild dislocation.Finally,the results of the empirical research are analyzed,and corresponding suggestions are put forward to promote the sustainable growth of the transport and tourism industries in Chengdu City.These suggestions aim to improve the coupled and coordinated development level of the two industries.展开更多
This study employs the coupled coordination gravity model to explore the spatial relationship between high-quality development and ecological environmental protection in the Yellow River Basin,using ecosystem service ...This study employs the coupled coordination gravity model to explore the spatial relationship between high-quality development and ecological environmental protection in the Yellow River Basin,using ecosystem service value(EsV)as a key perspective.The research begins by introducing the ecological and developmental context of the Yellow River Basin alongside relevant theoretical foundations.Subsequently,data from nine provinces in the Yellow River Basin from 2011 to 2022 are analyzed.EsV are calculated using established methodologies,and an index system for high-quality development is constructed and evaluated.The coupled coordination gravity model is then applied to analyze the data.The results indicate that the value of ecosystem services in the basin has fluctuated upward over the study period.Spatial development in high-quality development indices is evident across provinces,with Shaanxi and Ningxia achieving the highest levels of coupling and coordination,while Inner Mongolia exhibits relatively lower levels.Based on these findings,policy recommendations include continuing ecological restoration projects,enhancing policy support for central and western regions,fostering synergies between ecological and economic development,and promoting deeper regional cooperation.展开更多
To realize efficient and sustainable poverty alleviation,this study firstly investigated the identification of multidimensional poverty and relative poverty,and then explored relevant poverty alleviation pathways.Pove...To realize efficient and sustainable poverty alleviation,this study firstly investigated the identification of multidimensional poverty and relative poverty,and then explored relevant poverty alleviation pathways.Poverty levels in 31 provinces including the autonomous regions and municipalities of China were identified at the county level using the average nighttime light index(ANLI),county multidimensional development index(CMDI),and a method combining multidimensional poverty index and relative poverty standards.Poverty alleviation pathways for poverty-stricken counties were explored from the aspects of industry,education,tourism and agriculture.The results revealed that nearly 60% of counties in China were primarily under relative poverty,most of which were corresponded to light relative poverty.In terms of ANLI and CMDI,63% and 79% of the national poverty-stricken counties,as of 2018,could be identified,suggesting that CMDI had a higher performance for identifying poverty at the county level.In terms of poverty alleviation pathways,414,172,442,and 298 poverty-stricken counties were receptive to industry poverty alleviation,education poverty alleviation,tourism poverty alleviation,and agriculture poverty alleviation,and 61%of counties had more poverty-causing factors,implying that multidimensional poverty alleviation is suitable in most of the counties.展开更多
Forests provide enormous ecological, economic, and social benefits, as such forest development should be ori‐ented toward resource-economy-environment harmonization. This paper constructs a comprehensive evalua‐tion...Forests provide enormous ecological, economic, and social benefits, as such forest development should be ori‐ented toward resource-economy-environment harmonization. This paper constructs a comprehensive evalua‐tion index system and uses the coupled coordination degree model to measure the coordinated development level of China’ s forest resources-economy-environment system. The results show that, across 2006‒2020, the level of coupled coordinated development of China’ s forest resources-economy-environment composite system fluctuates in an upward trend, thus gradually developing from an initial imbalance to a high degree of coordi‐nation;the level of coordinated development of each subsystem of the forest resources, economy, and environ‐ment also shows an upward trend. The factors influencing the coordinated development of the forest resource economy-environment system are, in order, the government’ s financial capacity, market environment, scien‐tific and technological innovation capacity, level of economic development, and strength of policy implemen‐tation. Therefore, this paper proposes some measures to improve the coordinated development.展开更多
Slope climbing of urban expansion(SCE),as a form of urbanization,has increasingly significant impacts on urban development.Unsustainable slope climbing of urban expansion can harm the natural environment,thereby affec...Slope climbing of urban expansion(SCE),as a form of urbanization,has increasingly significant impacts on urban development.Unsustainable slope climbing of urban expansion can harm the natural environment,thereby affecting human production and living conditions.Using a coupled coordination model and the geographically weighted regression(GTWR)model,leveraging night light remote sensing data and ecological environment quality index model,this study investigated the coupling relationship between urban expansion and ecological environment quality and its influencing factors in the Yangtze River Economic Belt of China from 2000 to 2020.The results indicate that from 2000 to 2020,the intensity of urban slope climbing in the Yangtze River Economic Belt showed a fluctuating upward trend,with the slope climbing intensity being most significant in Chongqing Municipality and Kunming of Yunnan Province.Overall,the ecological environment quality exhibited an upward trend,with over 80%of the study area maintaining stable or improved ecological quality.There is a certain spatial correspondence between ecological environment quality and urban slope climbing.Although these two aspects of development demonstrate a high degree of coordination,fluctuations still occur during the development process.Further research on the coupling coordination relationship between the two revealed that population density has a negative impact on coupling coordination in the eastern region,and technology expenditure in eastern coastal cities has shown a negative trend over time.To ensure the continued increase in the proportion of highly coordinated areas in the future,eastern coastal cities in the study region could prioritize ecological civilization construction,strengthen urban construction and development planning,adjust influencing factors,and ensure the coordinated development of urban growth with ecological environment quality.展开更多
Cultivated land is an important natural resource to ensure food,ecological and economic security.The cultivated land quality evaluation(CQE)is greatly significant for protecting and managing cultivated land.In this st...Cultivated land is an important natural resource to ensure food,ecological and economic security.The cultivated land quality evaluation(CQE)is greatly significant for protecting and managing cultivated land.In this study,320 counties in the black soil region of Northeast China(BSRNC)represent the research units used to construct the CQE system measuring the soil properties(SP),cultivated land productivity(CLP),ecological environment(EE)and social economy(SE).The total of 19 factors were selected to calculate the integrated fertility index(IFI)and divided into grades.Simultaneously,we used the coupling coordination degree model to comprehensively analyze the spatial pattern of the cultivated land quality(CLQ)in the BSRNC,and use the structural equation model(SEM)to analyze the driving mechanism.The results show the following:1)The CLQ of 262 counties in the BSRNC is in a state of coupling and coordination,and the coupling and coordination degree presents a spatial distribution pattern of‘high in the southwest and northeast,low in the northwest and southeast’.The coordinated development degree of 271 counties is between 0.4 and 0.6,which is in a transitional state between coordination and disorder.2)The CLQ in the BSRNC is generally good,with an average grade of 3.High-quality cultivated land accounts for 58.45%of all counties,middle-and upper-quality cultivated land accounts for 27.05%,and poor-quality cultivated land accounts for 14.49%.3)The SEM analysis shows that the SP,CLP,EE,and SE all influence the CLQ.Among them,the SP has the largest driving force on the CLQ,while the SE has the smallest driving force on it.The results confirm that the main factors affecting the evaluation results are crop productivity level,normalized difference vegetation index,ratio vegetation index,difference vegetation index,and organic carbon content.When implementing protection measures in counties with a low CLQ,considering a balanced coordination of multiple systems and reasonably controlling the quality degradation are important.This study provides the current situation and driving factors of the CLQ in the BSRNC and will play an important role in black soil governance and utilization.展开更多
This study innovatively evaluated ecological civilization in China from the perspective of environment and health.A Composite Environmental Health Index(CEHI)was constructed based on the Driving force-Pressure-State-I...This study innovatively evaluated ecological civilization in China from the perspective of environment and health.A Composite Environmental Health Index(CEHI)was constructed based on the Driving force-Pressure-State-Impact-Response(DPSIR)and Coupling Coordination Degree(CCD)models.Results showed that significant and sustained improvements were observed in the ecological environment after ecological civilization,while economic development continued to progress at a steady pace.However,the advancement in population health(impact subsystem),exhibited comparatively modest progress,potentially linked to issues such as demographic aging and the enduring consequences of past exposure to environmental pollutants.At the provincial level,the regional development was uneven.The CEHI performance was highest in the eastern regions,followed by the central regions,with the western regions showing the least progress.Beijing,Guangdong,Jiangsu,Shanghai,and Zhejiang emerged as top performers with higher CEHI scores,which can be attributed to their favorable geographical positioning and the response subsystem.Conversely,northeastern regions(Heilongjiang,Jilin,and Liaoning)and northwestern regions(Shaanxi,Gansu,Ningxia,and Qinghai)experienced limited advancements in post-ecological civilization implementation.For these underperforming regions,there is a pressing need to intensify efforts aimed at enhancing their response subsystems.In summary,China's pursuit of ecological civilization has yielded significant successes,potentially offering valuable insights for other nations striving for sustainable development.The ecological civilization model's integration of ecological environmental protection into economic,political,cultural,and social constructs may serve as a meaningful reference for the sustainable development of other countries.展开更多
The cognition of low-carbon tourism among tourists is closely related to education level.In this study,the degree of coordination of low-carbon cognition with different educational levels is assessed by the coupling m...The cognition of low-carbon tourism among tourists is closely related to education level.In this study,the degree of coordination of low-carbon cognition with different educational levels is assessed by the coupling model in Wutai Mountain,and the effect of each factor on low-carbon cognition is analyzed by the geographical detector.The results show that:(1)The six cognition aspects of low-carbon tourism gradually transition from the level of intermediate coordination to good coordination with the advancement of the education level.Both the low-level and lower-level tourists belong to the lag type of low-carbon visiting cognition,and the higher-level tourists belong to the lag type of low-carbon shopping cognition,while the high-level tourists show the lag type of low-carbon food cognition.(2)According to the individual factors and interactive effects in the geographical detector,each impacting factor has a decisive effect on tourists’cognition of low-carbon tourism,and the effect of any two factors after interaction shows either a double-factor or nonlinear enhancement.The findings of this study provide valuable practical implications for helping tourism destinations to educate tourists and improve their low-carbon tourism options.At the same time,this study will provide theoretical standards for measuring tourists’cognition of low-carbon tourism,so as to enrich and improve the theoretical research related to low-carbon tourism.展开更多
基金Humanities and Social Sciences Fund of Ministry of Education of China,No.24YJA630097National Natural Science Foundation of China,No.42471304。
文摘The uneven distribution of medical resources has led to increasingly frequent patient mobility;however, the interaction between this phenomenon and the healthcare supply-demand relationship remains underexplored. The present study constructed the 2023Cross-City Patient Mobility Network in China using one million patient mobility data records obtained from online healthcare platforms. We applied urban network analysis to uncover mobility patterns and used the coupling coordination degree model to assess healthcare supply-demand relationships before and after patient mobility. Explainable machine learning further revealed the impact of supply-demand coupling on patient mobility. The results indicated the following: Patient mobility followed administrative boundaries, although megacities serve areas beyond provincial borders;The scale of healthcare supply and demand displayed a multi-centric spatial pattern with a general decline from east to west, and these characteristics of demand distribution were further solidified by patient mobility;Cities with low supply-demand coupling and undersupply experienced patient outflows, while cities with high coupling and oversupply attracted them. In turn, patient mobility helped balance healthcare supply and demand, optimising the coupling relationship across cities. Thus, this research not only provides a methodological reference for understanding the interaction between patient mobility and healthcare systems but also offers empirical insights for public health policy.
基金Ministry of Education Humanities Social Sciences Research Project,No.21YJAZH087Guangdong Special Support ProgramPearl River S&T Nova Program of Guangzhou,No.201806010187。
文摘Urban resilience is an emerging research topic of urban studies, and its essence is described by the ability of cities to resist, recover, and adapt to uncertain disturbances. This paper constructs a "Size-Density-Morphology" urban ecological resilience evaluation system, uses a coupling coordination degree model to measure the degree of coupling coordination between urbanization and ecological resilience in the Pearl River Delta from 2000 to 2015, and conducts an in-depth discussion on its spatiotemporal characteristics. The results show the following.(1) From 2000 to 2015, the urbanization level of cities in the study area generally increased while the level of ecological resilience declined. The coupling coordination degree between the two systems decreased from basic coordination to basic imbalance.(2) In terms of spatial distribution, the coupling coordination degree between urbanization and ecological resilience of cities presented a circular pattern that centered on the cities at the estuary of the Pearl River and increased toward the periphery.(3) Ecological resilience sub-systems played variable roles in the coupling coordination between urbanization and ecological resilience. Specifically, size resilience mainly played a reverse blocking role;the influence of morphology resilience was generally positive and continued to increase over time;the effect of density resilience was positive and continued to decline and further became negative after falling below zero. The main pathways for achieving coordinated and sustainable development of future urbanization and ecological resilience in the Pearl River Delta include: leading the coordinated development of regions with new urbanization, improving ecological resilience by strictly observing the three areas and three lines, adapting to ecological carrying capacity, and rationally arranging urban green spaces.
基金supported by the Natural Science Foundation of Shanxi Province(Grant No.20210302124437)the Graduate Student Research and Innovation Project of Shanxi Province(Grant No.2023KY551).
文摘In this paper,the Taixin Integrated Economic Zone in Shanxi Province is taken as the research object,and the coupling coordination degree model and bivariate spatial autocorrelation model are used to judge the coupling coordination and spatial-temporal correlation between urbanization and ecosystem service,and the hotspot analysis is used to judge the spatial-temporal trend of urbanization and ecosystem service.The results show that:(1)The urbanization level from 2000 to 2020 continued to rise,the areas with relatively high urbanization were concentrated in the central part of the study area,and the relatively high terrain areas on both sides of the study area,the urbanization was relatively slow,and the hotspot areas with highly significant and significant urbanization level from 2000 to 2020 were distributed as bands in the central part of the study area and the area was rising,and there was no Cold spot area distribution;between 2000 and 2020,the ecosystem service value in the study area increased by 2.6800×10^(8) yuan.Over these two decades,it exhibited a development trend that first rose and then declined.The woodland and grassland agglomeration areas were located on the two sides of the study area,forming highly significant and significant hotspots.Conversely,the central and northeastern parts of the study area were characterized by concentrated man-made land surfaces and croplands,resulting in the formation of highly significant and significant cold spots.(2)In the central part of the study area where man-made land surface and cultivated land are concentrated,the coupling coordination between urbanization and ecosystem service is in the intermediate dislocation and mild dislocation interval;the woodland and grassland concentration areas on both sides of the study area are ecologically fragile,and the coupling coordination between the two is in the level of less than intermediate dislocation.(3)From 2000 to 2020,urbanization and the value of ecosystem services were both negatively correlated,although the correlation coefficient was low.In the central and northeastern parts,urbanization and ecosystem service exhibited patterns of high-low,high-high,and low-low clustering.Conversely,on both sides of the study area,most of the clusters showed a low-high pattern.
基金State Key Laboratory of Spatial Datum(No.SKLSD2025-ZZ-17)National Natural Science Foundation of China(No.U21A2014)+2 种基金High-Resolution Satellite Project of the State Administration of Science,Technology,and Industry for National Defense of the PRC(No.80Y50G19-9001-22/23)National Science and Technology Platform Construction Project(No.2005DKA32300)Major Research Projects of the Ministry of Education(No.16JJD770019).
文摘Since the implementation of the reform and opening-up policy,China has undergone a period of rapid development.However,this urban expansion has been accompanied by significant ecological challenges.Therefore,understanding the relationship between urban expansion and ecological sustainability is crucial for future urban planning.This study analyzes land use data to investigate the spatiotemporal dynamics of urban agglomeration expansion from 2000 to 2020.Using MODIS satellite data,this study constructs a Remote Sensing Ecological Index(RSEI)model to assess ecological quality changes over the past two decades.Additionally,an improved coupling coordination model is applied to examine the interaction between urban expansion and ecological quality and to evaluate the spatiotemporal trends of their coordination.The results indicate that:①From 2000 to 2020,urban expansion in the Henan section of the Yellow River Basin followed a pattern of“growth-growthdecline”.Pattern recognition analysis indicated that both urban agglomerations and individual cities primarily expanded through edge extension and infill development,while enclave-style expansion occurred in only a small portion of the region.②Between 2000 and 2020,the ecological quality of urban agglomerations in the Henan section of the Yellow River Basin showed a slight improvement.RSEI values ranged from 0.4 to 0.7,indicating moderate ecological quality.Ecological quality exhibited a spatial pattern of being higher in the southwest and lower in the northeast.Significant declines in ecological quality were primarily concentrated in urban built-up areas,forming a patch-like distribution.Conversely,notable improvements in ecological quality occurred mainly in the mountainous regions of the southwest and north.③Between 2000 and 2020,the coupling coordination level of urban agglomerations showed an increasing trend.Coupling coordination values ranged from 0.248 to 0.734.Most cities were near an imbalance between urban expansion and ecological quality,while Zhengzhou was the only city to consistently maintain coordinated development over two decades.Spatially,highly imbalanced areas were mainly concentrated in the western and southern Henan sections,particularly in Sanmenxia and Luoyang.Conversely,areas with high coupling coordination were centered around Zhengzhou,showing a radial expansion pattern in recent years.
基金Under the auspices of National Natural Science Foundation of China(No.41401182,41501173)Youth Fund for Humanities and Social Sciences of the Ministry of Education of China(No.19YJC630177)+2 种基金Natural Science Foundation of Heilongjiang Province(No.LH2019D008)University Nursing Program for Young Scholars with Creative Talents in Heilongjiang Province(No.UNPYSCT-2018194)Talent Introduction Project of Southwest University(No.SWU019020)。
文摘To comprehensively understand the law of urban-rural relationship and propose scientific measures of urban-rural coordinated development in Northeast China,this study uses the coupling coordination degree model and geographically and temporally weighted regression(GTWR)model to analyze the spatial-temporal patterns and the corresponding driving mechanisms of its urban-rural coordination since 1990.The results are as follows.First,the urban-rural coupling coordination degree in Northeast China was very low and improved slowly,but its stages of evolution is a good interpretation of the strategic arrangements of China's urbanization.Second,the urban-rural coupling coordination degree in Northeast China had spatial differences and was characterized by central polarization,converging on urban agglomeration,which was high in the south and low in the north.Moreover,the gap between the north and south weakened.Third,the spatial-temporal evolution of the urban-rural coordination relationship in Northeast China was influenced by pulling from the central cities,pushing from rural transformation,and government regulations.The influence intensity of the three mechanisms was weak,but the pulling from the central cities was stronger than that of the other two mechanisms.Furthermore,the spatial difference between the three mechanisms determines the spatial pattern and its evolution of the urban-rural coordination relationship in Northeast China.Fourth,to promote the development of urban-rural coordination in Northeast China,it is essential to advance urban-rural economic correlation,enhance the government^role in regulating and guiding,and adopt different policies for each region in Northeast China.
文摘The integration of agricultural heritage and tourism industry contributes significantly to regional heritage protection,rural revitalization,and cultural inheritance.Based on the coupling coordination degree model,a quantitative research was conducted to study the integration of agricultural heritage in terms of the jasmine and tea culture system in Fuzhou with the local tourism industry.The results showed that both the development of Fuzhou's jasmine and tourism industries have advanced significantly and are currently leading in the country.However,they are not developing at the same pace.The results also showed that the coordination degree between Fuzhou5s jasmine and tourism industries have increased in recent years,with deepened mutual effects and improved coordination.Moreover,the coupling coordination degree has been rising over the past 13 years,with the coupling coordination level transforming from''extreme disorder''to"quality coordination,demonstrating a slow integration progress of Fuzhou's jasmine with the tourism industry at the early stage,but a sound development momentum at the later stage.
基金supported by the Beijing Social Science Foundation Project(Grant No.18YJB011)the Ministry of Education Humanities and Social Science Research Fund for Youth Project(Grant No.20YJA790059)+2 种基金the National Social Science Foundation of China(Grant No.20FGLB022)the General Project of National Social Science Foundation of China(Grant No.19BGL052)the Innovation and Entrepreneurship Project of Beijing Forestry University(Grant No.X202110022111).
文摘Based on the general requirements of the coordinated development of"ecological livable"and"affluent life"in the rural revitalization strategy,the evaluation index system of desertification control was constructed,the interaction between desertification control and regional social economy and the internal space-time coordination mechanism were explored,and the quality of desertification control and its coordination degree with regional economic development were quantitatively analyzed.The decoupling mechanism of desertification governance society economy system were analyzed,and the high level for the government to promote desertification governance,constructing ecological economy coordinated development pattern to provide decision basis to Xizang desertification governance-social economic system interaction and coupling coordination development as the research object,introducing the coupling decoupling model to measure the coupling coordination model and system coordination and decoupling decoupling.Desertification control in Xizang shows a trend of gradual improvement,but the overall level is still not high and there is a lot of room for optimization.The coupling coordination degree of desertification control-social and economic system is in a steady fluctuation trend,rising from D value less than 0.55 in 2004 to 0.87 in 2018,in a state of coordinated development(good),and grey prediction analysis shows that D value is in a continuous rise.The coupling coordination degree of the six prefecture-level cities in Xizang and Ngari region is different in time and space,but the overall development trend is coordinated.The development index of desertification control and the socio-economic development index show the interaction of strong decoupling,strong negative decoupling and weak decoupling,and there are interaction effects of desertification control,economic development and social development at different scales.
基金supported by the National Natural Science Foundation of China[grant number 42071429]the Open Fund of Key Laboratory of Urban Land Resources Monitoring and Simulation,Ministry of Natural Resources[grant number KF-2023-08-19].
文摘Urban Comprehensive Carrying Capacity(UCCC)can describe the development of a city and is an important guarantee for its sustainable development.Production-Living-Ecological Space(PLES)is an important guideline for the optimal development of China's land space in the new era.Based on the PLES,we construct a UCCC index system and analyzed the spatial and temporal distribution characteristics of the UCCC of each city in Zhejiang Province from 2006 to 2020.In addition,a coupling coordination degree model and an obstacle degree model are introduced to analyze the coupling coordination degree of the development of PLES of each city and the main constraint indicators,respectively,and a GM(1,1)model is used to predict the UCCC of each city in Zhejiang Province from 2021 to 2025.The study indicates that(1)the UCCC of each city is steadily increasing,with a growth rate of over 30%in 15 years.(2)As of 2020,the highest degree of coupling coordination reaches only 0.508,and it remains a major challenge for cities to improve the coordination degree of land use.(3)Some production space and living space indicators are the main obstacle indicators hindering the development of the UCCC in Zhejiang Province.(4)The forecast results show that the UCCC in each city will still maintain an upwards trend in the following 6 years and will gradually reach a high carrying capacity level.
基金Chongqing University of Science and Technology Postgraduate Innovation Program Project(Project No.YKJCX2320902)。
文摘Based on a total of 16 indicators selected from the tourism and transport industries,an evaluation index system of the coupling and coordination development level of tourism and transport is constructed.The entropy value method and the coupling coordination degree model are used to conduct an empirical study on the development level and coupling coordination level of the transport and tourism industries in Chengdu City from 2011 to 2020.The results show that,on the whole,the coupling coordination degree of transport and tourism in Chengdu is poor and has been in a state of mild to moderate dysfunction.The development level of tourism lagged behind the development of transport from 2011 to 2012,and the two were in a state of mild dysfunction.However,from 2013 onwards,the development level of tourism was prioritized over the development level of transport.This shift caused the coupling coordination degree of the two industries to decline sharply to 0.23305 in 2013.The development level of the tourism industry increased again,reaching 0.34206 in 2019,which marked an improvement.Consequently,the coordination degree of the transport and tourism industries evolved from moderate dislocation to mild dislocation.Finally,the results of the empirical research are analyzed,and corresponding suggestions are put forward to promote the sustainable growth of the transport and tourism industries in Chengdu City.These suggestions aim to improve the coupled and coordinated development level of the two industries.
基金The Commerce Statistical Society of China 2024 Annual Planning Project(2024STY75)The Research Project of Higher Education Institutions in Guizhou Province for the Year 2023(Youth Project)([2022]164)The 2024 Annual Henan Province Federation of Social Sciences Circles Research Project(SKL-2024-1765)。
文摘This study employs the coupled coordination gravity model to explore the spatial relationship between high-quality development and ecological environmental protection in the Yellow River Basin,using ecosystem service value(EsV)as a key perspective.The research begins by introducing the ecological and developmental context of the Yellow River Basin alongside relevant theoretical foundations.Subsequently,data from nine provinces in the Yellow River Basin from 2011 to 2022 are analyzed.EsV are calculated using established methodologies,and an index system for high-quality development is constructed and evaluated.The coupled coordination gravity model is then applied to analyze the data.The results indicate that the value of ecosystem services in the basin has fluctuated upward over the study period.Spatial development in high-quality development indices is evident across provinces,with Shaanxi and Ningxia achieving the highest levels of coupling and coordination,while Inner Mongolia exhibits relatively lower levels.Based on these findings,policy recommendations include continuing ecological restoration projects,enhancing policy support for central and western regions,fostering synergies between ecological and economic development,and promoting deeper regional cooperation.
基金Strategic Priority Research Program of the Chinese Academy of Sciences,No.XDA23070400National Natural Science Foundation of China,No.41901234,No.51909052。
文摘To realize efficient and sustainable poverty alleviation,this study firstly investigated the identification of multidimensional poverty and relative poverty,and then explored relevant poverty alleviation pathways.Poverty levels in 31 provinces including the autonomous regions and municipalities of China were identified at the county level using the average nighttime light index(ANLI),county multidimensional development index(CMDI),and a method combining multidimensional poverty index and relative poverty standards.Poverty alleviation pathways for poverty-stricken counties were explored from the aspects of industry,education,tourism and agriculture.The results revealed that nearly 60% of counties in China were primarily under relative poverty,most of which were corresponded to light relative poverty.In terms of ANLI and CMDI,63% and 79% of the national poverty-stricken counties,as of 2018,could be identified,suggesting that CMDI had a higher performance for identifying poverty at the county level.In terms of poverty alleviation pathways,414,172,442,and 298 poverty-stricken counties were receptive to industry poverty alleviation,education poverty alleviation,tourism poverty alleviation,and agriculture poverty alleviation,and 61%of counties had more poverty-causing factors,implying that multidimensional poverty alleviation is suitable in most of the counties.
基金funded by the National Social Science Foundation of China[Grant No.20BJY075].
文摘Forests provide enormous ecological, economic, and social benefits, as such forest development should be ori‐ented toward resource-economy-environment harmonization. This paper constructs a comprehensive evalua‐tion index system and uses the coupled coordination degree model to measure the coordinated development level of China’ s forest resources-economy-environment system. The results show that, across 2006‒2020, the level of coupled coordinated development of China’ s forest resources-economy-environment composite system fluctuates in an upward trend, thus gradually developing from an initial imbalance to a high degree of coordi‐nation;the level of coordinated development of each subsystem of the forest resources, economy, and environ‐ment also shows an upward trend. The factors influencing the coordinated development of the forest resource economy-environment system are, in order, the government’ s financial capacity, market environment, scien‐tific and technological innovation capacity, level of economic development, and strength of policy implemen‐tation. Therefore, this paper proposes some measures to improve the coordinated development.
基金Under the auspices of National Natural Science Foundation of China(No.42371191)Science and Technology Planning of NIGLAS(No.NIGLAS2022GS06,2022NIGLAS-CJH04)。
文摘Slope climbing of urban expansion(SCE),as a form of urbanization,has increasingly significant impacts on urban development.Unsustainable slope climbing of urban expansion can harm the natural environment,thereby affecting human production and living conditions.Using a coupled coordination model and the geographically weighted regression(GTWR)model,leveraging night light remote sensing data and ecological environment quality index model,this study investigated the coupling relationship between urban expansion and ecological environment quality and its influencing factors in the Yangtze River Economic Belt of China from 2000 to 2020.The results indicate that from 2000 to 2020,the intensity of urban slope climbing in the Yangtze River Economic Belt showed a fluctuating upward trend,with the slope climbing intensity being most significant in Chongqing Municipality and Kunming of Yunnan Province.Overall,the ecological environment quality exhibited an upward trend,with over 80%of the study area maintaining stable or improved ecological quality.There is a certain spatial correspondence between ecological environment quality and urban slope climbing.Although these two aspects of development demonstrate a high degree of coordination,fluctuations still occur during the development process.Further research on the coupling coordination relationship between the two revealed that population density has a negative impact on coupling coordination in the eastern region,and technology expenditure in eastern coastal cities has shown a negative trend over time.To ensure the continued increase in the proportion of highly coordinated areas in the future,eastern coastal cities in the study region could prioritize ecological civilization construction,strengthen urban construction and development planning,adjust influencing factors,and ensure the coordinated development of urban growth with ecological environment quality.
基金Under the auspices of National Key R&D Program of China(No.2021YFD1500104-4)National Natural Science Foundation of China(No.42171407,42077242)+1 种基金Natural Science Foundation of Jilin Province(No.20210101098JC)Special Investigation on Basic Science and Technology Resources(No.2021FY100406)。
文摘Cultivated land is an important natural resource to ensure food,ecological and economic security.The cultivated land quality evaluation(CQE)is greatly significant for protecting and managing cultivated land.In this study,320 counties in the black soil region of Northeast China(BSRNC)represent the research units used to construct the CQE system measuring the soil properties(SP),cultivated land productivity(CLP),ecological environment(EE)and social economy(SE).The total of 19 factors were selected to calculate the integrated fertility index(IFI)and divided into grades.Simultaneously,we used the coupling coordination degree model to comprehensively analyze the spatial pattern of the cultivated land quality(CLQ)in the BSRNC,and use the structural equation model(SEM)to analyze the driving mechanism.The results show the following:1)The CLQ of 262 counties in the BSRNC is in a state of coupling and coordination,and the coupling and coordination degree presents a spatial distribution pattern of‘high in the southwest and northeast,low in the northwest and southeast’.The coordinated development degree of 271 counties is between 0.4 and 0.6,which is in a transitional state between coordination and disorder.2)The CLQ in the BSRNC is generally good,with an average grade of 3.High-quality cultivated land accounts for 58.45%of all counties,middle-and upper-quality cultivated land accounts for 27.05%,and poor-quality cultivated land accounts for 14.49%.3)The SEM analysis shows that the SP,CLP,EE,and SE all influence the CLQ.Among them,the SP has the largest driving force on the CLQ,while the SE has the smallest driving force on it.The results confirm that the main factors affecting the evaluation results are crop productivity level,normalized difference vegetation index,ratio vegetation index,difference vegetation index,and organic carbon content.When implementing protection measures in counties with a low CLQ,considering a balanced coordination of multiple systems and reasonably controlling the quality degradation are important.This study provides the current situation and driving factors of the CLQ in the BSRNC and will play an important role in black soil governance and utilization.
基金supported by the Strategic Priority Research Program of Chinese Academy of Sciences(XDA23100400).
文摘This study innovatively evaluated ecological civilization in China from the perspective of environment and health.A Composite Environmental Health Index(CEHI)was constructed based on the Driving force-Pressure-State-Impact-Response(DPSIR)and Coupling Coordination Degree(CCD)models.Results showed that significant and sustained improvements were observed in the ecological environment after ecological civilization,while economic development continued to progress at a steady pace.However,the advancement in population health(impact subsystem),exhibited comparatively modest progress,potentially linked to issues such as demographic aging and the enduring consequences of past exposure to environmental pollutants.At the provincial level,the regional development was uneven.The CEHI performance was highest in the eastern regions,followed by the central regions,with the western regions showing the least progress.Beijing,Guangdong,Jiangsu,Shanghai,and Zhejiang emerged as top performers with higher CEHI scores,which can be attributed to their favorable geographical positioning and the response subsystem.Conversely,northeastern regions(Heilongjiang,Jilin,and Liaoning)and northwestern regions(Shaanxi,Gansu,Ningxia,and Qinghai)experienced limited advancements in post-ecological civilization implementation.For these underperforming regions,there is a pressing need to intensify efforts aimed at enhancing their response subsystems.In summary,China's pursuit of ecological civilization has yielded significant successes,potentially offering valuable insights for other nations striving for sustainable development.The ecological civilization model's integration of ecological environmental protection into economic,political,cultural,and social constructs may serve as a meaningful reference for the sustainable development of other countries.
基金Supported by Program for the Philosophy and Social Sciences Research of Higher Learning Institutions of Shanxi(2023W064)。
文摘The cognition of low-carbon tourism among tourists is closely related to education level.In this study,the degree of coordination of low-carbon cognition with different educational levels is assessed by the coupling model in Wutai Mountain,and the effect of each factor on low-carbon cognition is analyzed by the geographical detector.The results show that:(1)The six cognition aspects of low-carbon tourism gradually transition from the level of intermediate coordination to good coordination with the advancement of the education level.Both the low-level and lower-level tourists belong to the lag type of low-carbon visiting cognition,and the higher-level tourists belong to the lag type of low-carbon shopping cognition,while the high-level tourists show the lag type of low-carbon food cognition.(2)According to the individual factors and interactive effects in the geographical detector,each impacting factor has a decisive effect on tourists’cognition of low-carbon tourism,and the effect of any two factors after interaction shows either a double-factor or nonlinear enhancement.The findings of this study provide valuable practical implications for helping tourism destinations to educate tourists and improve their low-carbon tourism options.At the same time,this study will provide theoretical standards for measuring tourists’cognition of low-carbon tourism,so as to enrich and improve the theoretical research related to low-carbon tourism.
