This study was designed to measure the performance of county health systems in central and western China utilizing routine healthcare data.Drawing on a literature review and expert consultation,the study established a...This study was designed to measure the performance of county health systems in central and western China utilizing routine healthcare data.Drawing on a literature review and expert consultation,the study established a theoretical framework and an indicator system for performance review.Questionnaires were designed and disseminated to collect empirical data on health system performance in four counties of two central and western provinces.Quantitative data were subjected to descriptive statistical analysis through SPSS12.0.Three dimensions were introduced in the performance review framework—health outcomes,financial risk protection and consumer and provider satisfaction.Health outcomes were assessed from four secondary indicators：infant mortality rate;maternal mortality rate;under-5 child mortality rate;and the incidence of Class A and Class B notifiable diseases.Financial risk was assessed using two secondary indicators：the proportion of the cost of inpatient care that was reimbursed under the New Cooperative Medical System（NCMS） insurance scheme,and the rate of NCMS funds utilization.The assessment of satisfaction was made using two secondary indicators：the overall satisfaction of local residents with healthcare services,and the satisfaction of health practitioners at the township and village level.The study indicated better health system performance in the two counties in Chongqing than those in Shanxi.It was concluded that outcome framework scores can fairly reveal performance differences among county health systems in central and western China,and can provide practical evidence for optimizing the operation and inputs of county health systems.Caution needs to be exercised in generalizing such performance outcomes as many factors such as spending and organization that contribute to county health system performance were not included in the study.展开更多
Based on TM image data in 1989, 1995, 1999, 2003, 2006 and 2009 of Yanchi County of Ningxia, the land use date of Yanchi County in each year were extracted supported by RS and GIS technology, and used to analyze the d...Based on TM image data in 1989, 1995, 1999, 2003, 2006 and 2009 of Yanchi County of Ningxia, the land use date of Yanchi County in each year were extracted supported by RS and GIS technology, and used to analyze the dynamic change of land use. The land use data were studied for estimating the change of ecosystem services value caused by the land use change of Yanchi County, using the evaluation method of China terrestrial ecosystem services value. The results showed that the changes of land use were obvious during 1989 to 2009. The area of woodland and construction land had an increasing tendency; grassland area changed from decreasing to increasing, which was in contrary to farmland and un-used land areas （from increasing to decreasing）; water area fluctuated slightly. The ecosystem services value of Yanchi County had an increasing tendency during 1989 to 1995, because the increasing woodland area had took the major role in raising the total ecosystem services value. The grassland accounted for a large proportion of the total ecosystem service value of Yanchi County, with its contribution rate from 49.8% to 60.4%. And the composition of the ecosystem services value of Yanchi County happened benign change for the increasing contribution rate of woodland. The ecosystem services value sensitivity index of each land use type was less than 1, indicating that the ecosystem services value of Yanchi County lacks flexibility on its service value index, and the research results are reliable.展开更多
[Objective] This study formulated a technical framework for key settlement selection in Dancheng County of Henan Province. [Method] The location set covering model (LSCM) provided by ArcGIS 10.0 was used in this study...[Objective] This study formulated a technical framework for key settlement selection in Dancheng County of Henan Province. [Method] The location set covering model (LSCM) provided by ArcGIS 10.0 was used in this study. [Result] After reconstruction, the settlement system in Dancheng County is composed of 2 county centers, 7 key towns and 122 key villages. [Conclusion] This study provides suggestions for the development of key settlements in Dancheng County, which contributes to improving the level of rural public services and ensuring social justice.展开更多
The characteristics of small cities in Henan Province were summarized in this study, with Huaiyang County as an example, guiding concepts, goals and contents of green space system planning of county-level cities in He...The characteristics of small cities in Henan Province were summarized in this study, with Huaiyang County as an example, guiding concepts, goals and contents of green space system planning of county-level cities in Henan Province were analyzed through reviewing the general situation of its green space system and the planning of green space system in the construction of garden cities.展开更多
Global and regional environmental changes such as land use and climate change have significantly integrated and interactive effects on forest. These integrated effects will undoubtedly alter the distribution, function...Global and regional environmental changes such as land use and climate change have significantly integrated and interactive effects on forest. These integrated effects will undoubtedly alter the distribution, function and succession processes of forest ecosystems. In order to adapt to these changes, it is necessary to understand their individual and integrated effects. In this study, we proposed a framework by using coupling models to gain a better understanding of the complex ecological processes. We combined an agent-based model for land use and land cover change（ABM/LUCC）, an ecosystem process model（PnET-Ⅱ）, and a forest dynamic landscape model（LANDIS-Ⅱ） to simulate the change of forest aboveground biomass（AGB） which was driven by land use and climate change factors for the period of 2010–2050 in Taihe County of southern China, where subtropical coniferous plantations dominate. We conducted a series of land use and climate change scenarios to compare the differences in forest AGB. The results show that：（1） land use, including town expansion, deforestation and forest conversion and climate change are likely to influence forest AGB in the near future in Taihe County.（2） Though climate change will make a good contribution to an increase in forest AGB, land use change can result in a rapid decrease in the forest AGB and play a vital role in the integrated simulation. The forest AGB under the integrated scenario decreased by 53.7%（RCP2.6 ＋ land use）, 57.2%（RCP4.5 ＋ land use）, and 56.9%（RCP8.5 ＋ land use） by 2050, which is in comparison to the results under separate RCPs without land use disturbance.（3） The framework can offer a coupled method to better understand the complex and interactive ecological processes, which may provide some supports for adapting to land use and climate change, improving and optimizing plantation structure and function,and developing measures for sustainable forest management.展开更多
Experiments in monitoring the removal of organic material and nitrogen and determining the amounts of mi- croorganism at different sites in the subsurface flow constructed wetland in Sihong county were performed. The ...Experiments in monitoring the removal of organic material and nitrogen and determining the amounts of mi- croorganism at different sites in the subsurface flow constructed wetland in Sihong county were performed. The results show that the removal of CODCr agrees with the kinetic equation of a first order reaction. The removal of pollutants varies with different seasons. The removal rates of CODCr, NH3-N, TN in the spring are 15%–23% higher than those in the autumn. The amount of ammonifier is larger than that of denitrifying bacteria and the amount of denitrifying bacte- ria is larger than that of nitrosomonas. The amount of bacteria around the plant roots is larger than that on the surface of the packing medium. No apparent change is observed for the amount of denitrifying bacteria and nitrosomonas between spring and autumn.展开更多
Thoroughgoing studies of the homogenization temperatures, pressures and chendcal compositions offluid inclusions and the stable isotopes of hydrothermal minerals (quartz. calcite, pyrite and molybdenite)have thrown li...Thoroughgoing studies of the homogenization temperatures, pressures and chendcal compositions offluid inclusions and the stable isotopes of hydrothermal minerals (quartz. calcite, pyrite and molybdenite)have thrown light on the evolution trend of the molybdenum-bearing hydrothermal system which originatedfrom magmatic processus and underwent significant mixing with meteoric waters in the later stages ofhydrothermal activity.展开更多
According to the discussion of domestic scholars on county talents,we know that the researches concerning county human resources mainly focus on discussing the problems such as the total amount,distribution,quality an...According to the discussion of domestic scholars on county talents,we know that the researches concerning county human resources mainly focus on discussing the problems such as the total amount,distribution,quality and introduction of county talents though the analysis of coordination between talents and county economic development,and the research of relationship between industry adjustment and talents need.However,there have no relevant documents about the analysis and discussion of county talents problems based on system schema theory.In view of this reality,on the basis of the introduction of the system schema theory propounded by management guru Peter Senge,we conduct the feedback schema analysis of the restricted factors of talents shortages during county economic development;establish the growth limits schema of county talents system;analyze the functioning mechanism of the total amount,distribution,quality and introduction of county talents on the development of county economy;discuss the relationship between the individual quality,social relation and emotional need of returning-home start-up,and talents resource shortage;propose the countermeasures and suggestions to mitigate the shortage of county talents,in order to optimize the allocation of county human resources,and promote the county's economic development.展开更多
Water environment is a part of ecological environment, and conservation of water environment has always been a focus of public attention in China, but water environment management in the vast countryside has been stuc...Water environment is a part of ecological environment, and conservation of water environment has always been a focus of public attention in China, but water environment management in the vast countryside has been stuck in bottleneck. Based on the fi eld investigation in Xianxia Town, Yudu County, Ganzhou City, Jiangxi Province, this paper explored the current situation of local water environment and the management diffi culties, then introduced the holistic view to integrate the linkage of government, market and society, proposed the universality of the individual case, and the new attempt centering on urban-rural integrated water environment management system with public participation mechanism, management subjects' benefit balance and coordination system, marketing operation mechanism and economic incentive mechanism as the extension.展开更多
The common topic the mankind faces in the 21^st century is to strengthen construction and support the ecological secure. It is also the needs of establlshing socialist harmonious society in China. It is an arduous sys...The common topic the mankind faces in the 21^st century is to strengthen construction and support the ecological secure. It is also the needs of establlshing socialist harmonious society in China. It is an arduous systematic project in ethnic group regions of China to realize economic and sodal sustainable development,promote the harmony between man and nature andrealize the coordination among the economic development population, natural resources and envinonment To develop ecosystem construction and the green indutry well is the basic path to realize the above goals. Huanren Manchu Autonomous County in Liaoning Province is abundant in forests, especially local products, medicinal materials, tourism resource, water resources and culotte resources. In order to develop its ecosystem, the strategies should be focused on enhancing protection consciousaess, brand consciousness, science and technology consciousoess and market consciousness. The ultimate purpose is to create the top-ranking ecosystem environment, industry system, policy systern and district civilization.展开更多
Based on the field survey of dwellings in Tieqiong Village of Waerma Town in Aba County, northwest Tibetan area of Sichuan Province, this paper firstly introduced main characteristics of the construction system in the...Based on the field survey of dwellings in Tieqiong Village of Waerma Town in Aba County, northwest Tibetan area of Sichuan Province, this paper firstly introduced main characteristics of the construction system in the structure, materials and structural system, and analyzed changes in construction practices of various dwellings from traditional to modern time. Finally, it summarized characteristics of spontaneous evolution and research value of the construction system of dwellings in the northwest Tibetan area of Sichuan Province, with rammed earth wooden dwellings in upper and middle Aba areas as representatives.展开更多
Miyun County,located in the northeast of Chinese capital Beijing,was underwent remarkable variations in land use in recent years.This paper aimed to detect changes in land use of Miyun from 1997 to 2005,and to qualify...Miyun County,located in the northeast of Chinese capital Beijing,was underwent remarkable variations in land use in recent years.This paper aimed to detect changes in land use of Miyun from 1997 to 2005,and to qualify the response of ecosystem to LUCC based on ecosystem services valuation.With two-periods TM images,we got land use change data,and then ecosystem services values were calculated using ecosystem services valuation coefficients proposed by Chinese scholar Xie Gaodi.Results showed that water area,farm land and unused land decreased while residential land,forest land,grassland and orchard land increased during the study period.The loss of ESV was RMB 206 million and the main reason was the decrease of water area and farm land area.As for spatial variation,there were most dramatically land use change and ESV decline in reservoir ecological protection region.The coefficient sensitivity analysis indicates that valuation coefficients used in the study are suitable and results are reasonable.The driving forces of ESV loss were rapid population growth and economic development.More work should be done to make eco-environment stay healthy.展开更多
From the perspective of environmental issues concerning land use and importance of county,we analyze the great significance of environment-friendly use of county land resources. On the basis of discussing the concept ...From the perspective of environmental issues concerning land use and importance of county,we analyze the great significance of environment-friendly use of county land resources. On the basis of discussing the concept and connotation of environment-friendly utilization of land resources,we build the basic framework for the evaluation of environment-friendly utilization of land resources from environment,economy and society,and propose the evaluation methods combining composite index method and multi-angle single indicator evaluation method. At the same time,we establish the grading system and grading standards for environment-friendly county land use,to promote the qualitative and quantitative evaluation of environment-friendly county land use.展开更多
It is of great significance to study the influence of spatial pattern change of cultivated land on eco-system service,including the sustainable utilization and ecological protection in black soil region in Northeast C...It is of great significance to study the influence of spatial pattern change of cultivated land on eco-system service,including the sustainable utilization and ecological protection in black soil region in Northeast China.Taking Lishu County of Jilin Province as the study area,we quantitatively evaluated soil conservation,habitat quality,carbon storage and grain production service,and analyzed the change of cultivated land and ecosystem service pattern in Lishu County from 1990 to 2020 by using Pearson correlation analysis on the correlation between cultivated land change and ecosystem service.The results show that:(1)The cultivated land area of Lishu County was reduced by 19.67 km2,the characteristics of cultivated land change are signifi-cant;(2)the overall change rate of carbon storage,habitat quality,soil conservation and grain production ser-vice in the study area was 10.82%,-0.09%,4.07%and 1.80%,respectively.They all had significant spatial differentiation features;(3)the change of habitat quality,grain production service showed a significant pos-itive correlation with the change of cultivated land area.The change in soil conservation and carbon storage were negatively related to cultivated land area.In order to promote the rational development and utilization of cultivated land in the research area,it is suggested to scientifically carry out the comprehensive utilization of cultivated land reserve resources such as saline-alkali land,strengthen the management and protection of newly added cultivated land at the same time.The results can provide scientific reference for formulating comprehensive land use planning under ecological security conditions.展开更多
From the point of spatio-temporal changes of ecological system type,function and value,in Menglian county,land using/cover data was based on three Landsat TM images(respectively obtained in2000,2005,2010 and 2015) whi...From the point of spatio-temporal changes of ecological system type,function and value,in Menglian county,land using/cover data was based on three Landsat TM images(respectively obtained in2000,2005,2010 and 2015) which were interpreted as basic information sources by using RS and GIS technology and then revising ecosystem service value per unit area in Menglian county.This paper has researched on the changes of ecosystem service value of economic garden for large area planting as well as evaluated ecosystem service value scientifically in Menglian county combined with the sensitivity analysis.The Results showed that:(1) In Menglian county,from 2000 to 2015,land use pattern manifested as the transformation from large areas of cultivated land,forest land and shrub to the economic landscape,the economic landscape is increased by 24458.31 hm^2,however,farm land,wood land and shrub are reduced by 24865.74 hm2 in total;(2) Changes of ecosystem service value is closely related to economic landscape development in Menglian county.The situation of ecosystem service value shows the changing trend from improvement to severity in 2000-2015.ESV is increased by 96.39 million yuan from 2000 to2005,whose annual growth rate is about 0.56%·a^(-1).But in the year of 2005 to 2015,ESV is reduced by120.23 million yuan and annual reduced rate is about 0.34%·a^(-1);(3) In Menglian county,the main ecological system is the woodland ecological system,the primary ecosystem service functions are biodiversity protection,gas regulation,soil formation and retention,climate regulation and water supply,the ecological benefit were decreased in 2000-2015;(4) From the aspect of space distribution,ecosystem service value in Menglian county is relatively high in the central area and relatively not high in the western and eastern area.ESV(yuan·hm`(-2)) was changed obvious,Gongxin town trended to decline,other towns increased first the then reduced.The temporal and spatial variation of ecosystem service value in Menglian county is affected by natural and human factors.The key to the development of economic landscape is rational land use according to the practical situation,which can create economic value and also keep its ecological value.展开更多
At present, the overall economic and social development of our country is fast, but the rate of development of the remote land and territories in the land is still far behind the speed of the inland and the east. This...At present, the overall economic and social development of our country is fast, but the rate of development of the remote land and territories in the land is still far behind the speed of the inland and the east. This has also triggered a series of frontier issues. This requires our frontier government to strengthen border governance, seize the opportunity to meet challenges, and at the same time we must also strengthen the assessment of the governance capacity of the frontier government. This article hopes that through the actual investigation and study of frontier counties and the consideration of border issues according to local conditions, a set of performance evaluation index system for frontier county-level governments will be proposed, which will help the frontier government in border control.展开更多
Administrative division is an important means of political power reorganization and management,resource integration and optimal allocation,which profoundly shapes the spatial layout of urban development in China.To cl...Administrative division is an important means of political power reorganization and management,resource integration and optimal allocation,which profoundly shapes the spatial layout of urban development in China.To clarify and compare differences between counties,county-level cities and municipal districts is the primary premise for the study of administrative division and urban development.This paper analyzes the institutional differences between counties and county-level cities,as well as counties,county-level cities and municipal districts,from the aspects of organizational structure,urban construction planning,land management,finance,taxation and public services.The research shows that the establishment of counties,county-level cities and municipal districts adapt to different levels and stages of economic and social development,and the conversion from county to county-level city and the conversion from county(or county-level city)to municipal district are both important transformation ways to change their administrative systems,which has different management system and operation pattern.At the same time,the transformation of county-level administrative region is also a“double-edged sword”,we should think about the administrative system as a whole to decide whether it should be adjusted,and effectively respond to the actual needs of local economic and social development.展开更多
[Objectives]To explore the spatiotemporal evolution and development drivers for Taobao villages in Cao County.[Methods]This paper employs GIS spatial analysis methods such as standard deviation ellipse and kernel dens...[Objectives]To explore the spatiotemporal evolution and development drivers for Taobao villages in Cao County.[Methods]This paper employs GIS spatial analysis methods such as standard deviation ellipse and kernel density to characterize the spatial distribution,agglomeration,and correlation features of Taobao villages in Cao County at the township scale.Additionally,geographic detectors are used to explore influencing factors.[Results](i)The number of Taobao villages in Cao County exhibits phased characteristics,progressing through initial,rapid expansion,and stable development stages.(ii)Taobao villages are unevenly distributed,with significant clustering features,primarily concentrated in the southeastern part of the county.In recent years,they have expanded toward the central and northwestern regions,potentially forming a"multi-core"spatial pattern in the future.(iii)The number of garment industries and e-commerce industrial parks consistently remains the primary factor influencing the spatial distribution of Taobao villages.After 2020,the number of wood processing industries and specialty agricultural product processing industries also exerted considerable influence.The number of logistics parks began to have an impact after 2018,albeit a weak one.Other factors had minimal influence on the differentiation of Taobao villages.[Conclusions]The spatiotemporal evolution exhibited diffusion along the"northwest-southeast"axis,with strengthened regional clustering.Government policies and industries significantly influenced the differentiation of Taobao villages,with varying primary factors across different periods.展开更多
This study develops a geological hazard evaluation index system for Shouning County,a key area for disaster prevention in Fujian Province.Through detailed investigation reports and field surveys,six factors were selec...This study develops a geological hazard evaluation index system for Shouning County,a key area for disaster prevention in Fujian Province.Through detailed investigation reports and field surveys,six factors were selected,including elevation,slope gradient,slope aspect,stratigraphic lithological group,distance from the water systems,and geological structures.A geological hazard susceptibility zoning map was created using the Information Quantity Method(IQM).The evaluation showed that elevation,slope aspect,and distance from the water systems are primary risk factors,with high and extremely high susceptibility areas covering 168.57 km^(2)(52.63%of the study area)and a disaster point density of 3.07 points/km^(2).The model achieved an accuracy of 0.73,validating its effectiveness in hazard assessment.These findings provide a valuable reference for disaster prediction and mitigation in Shouning County,supporting improved planning and risk management efforts.展开更多
[Objectives]To assess the effectiveness of the intelligent small insect monitoring and forecasting system developed by Zhejiang Top Cloud-Agri Technology Co.,Ltd.in monitoring,providing early warnings,and identifying ...[Objectives]To assess the effectiveness of the intelligent small insect monitoring and forecasting system developed by Zhejiang Top Cloud-Agri Technology Co.,Ltd.in monitoring,providing early warnings,and identifying rice planthoppers.[Methods]In 2024,an experiment involving the automatic identification and counting of rice planthoppers was conducted using the intelligent small insect monitoring and forecasting system in the rice production demonstration area of Qingxichang Sub-district,Xiushan Autonomous County,Chongqing City.The results obtained were subsequently compared and analyzed against those derived from manual identification.[Results]The intelligent small insect monitoring and forecasting system achieved recognition accuracy rates of 95.14%,94.25%,and 97.78% for Nilaparvata lugens,Sogatella furcifera,and Laodelphax striatellus,respectively,resulting in an average accuracy rate of 95.72%.The outcomes derived from automatic recognition closely corresponded with those obtained through manual identification.[Conclusions]This research provides a reference for the optimization of the intelligent small insect monitoring and forecasting system.展开更多
文摘This study was designed to measure the performance of county health systems in central and western China utilizing routine healthcare data.Drawing on a literature review and expert consultation,the study established a theoretical framework and an indicator system for performance review.Questionnaires were designed and disseminated to collect empirical data on health system performance in four counties of two central and western provinces.Quantitative data were subjected to descriptive statistical analysis through SPSS12.0.Three dimensions were introduced in the performance review framework—health outcomes,financial risk protection and consumer and provider satisfaction.Health outcomes were assessed from four secondary indicators：infant mortality rate;maternal mortality rate;under-5 child mortality rate;and the incidence of Class A and Class B notifiable diseases.Financial risk was assessed using two secondary indicators：the proportion of the cost of inpatient care that was reimbursed under the New Cooperative Medical System（NCMS） insurance scheme,and the rate of NCMS funds utilization.The assessment of satisfaction was made using two secondary indicators：the overall satisfaction of local residents with healthcare services,and the satisfaction of health practitioners at the township and village level.The study indicated better health system performance in the two counties in Chongqing than those in Shanxi.It was concluded that outcome framework scores can fairly reveal performance differences among county health systems in central and western China,and can provide practical evidence for optimizing the operation and inputs of county health systems.Caution needs to be exercised in generalizing such performance outcomes as many factors such as spending and organization that contribute to county health system performance were not included in the study.
基金supported by the National Key Technology R&D Program of China(2012BAD16B02)National Forestry Public Welfare Industry Research of China(201004018)~~
文摘Based on TM image data in 1989, 1995, 1999, 2003, 2006 and 2009 of Yanchi County of Ningxia, the land use date of Yanchi County in each year were extracted supported by RS and GIS technology, and used to analyze the dynamic change of land use. The land use data were studied for estimating the change of ecosystem services value caused by the land use change of Yanchi County, using the evaluation method of China terrestrial ecosystem services value. The results showed that the changes of land use were obvious during 1989 to 2009. The area of woodland and construction land had an increasing tendency; grassland area changed from decreasing to increasing, which was in contrary to farmland and un-used land areas （from increasing to decreasing）; water area fluctuated slightly. The ecosystem services value of Yanchi County had an increasing tendency during 1989 to 1995, because the increasing woodland area had took the major role in raising the total ecosystem services value. The grassland accounted for a large proportion of the total ecosystem service value of Yanchi County, with its contribution rate from 49.8% to 60.4%. And the composition of the ecosystem services value of Yanchi County happened benign change for the increasing contribution rate of woodland. The ecosystem services value sensitivity index of each land use type was less than 1, indicating that the ecosystem services value of Yanchi County lacks flexibility on its service value index, and the research results are reliable.
文摘[Objective] This study formulated a technical framework for key settlement selection in Dancheng County of Henan Province. [Method] The location set covering model (LSCM) provided by ArcGIS 10.0 was used in this study. [Result] After reconstruction, the settlement system in Dancheng County is composed of 2 county centers, 7 key towns and 122 key villages. [Conclusion] This study provides suggestions for the development of key settlements in Dancheng County, which contributes to improving the level of rural public services and ensuring social justice.
文摘The characteristics of small cities in Henan Province were summarized in this study, with Huaiyang County as an example, guiding concepts, goals and contents of green space system planning of county-level cities in Henan Province were analyzed through reviewing the general situation of its green space system and the planning of green space system in the construction of garden cities.
基金National Basic Research Program of China（973 Program）,No.2015CB452702 National Natural Science Foundation of China,No.41571098,No.41371196,No.41530749 National Key Technology R＆D Program,No.2013BAC03B04
文摘Global and regional environmental changes such as land use and climate change have significantly integrated and interactive effects on forest. These integrated effects will undoubtedly alter the distribution, function and succession processes of forest ecosystems. In order to adapt to these changes, it is necessary to understand their individual and integrated effects. In this study, we proposed a framework by using coupling models to gain a better understanding of the complex ecological processes. We combined an agent-based model for land use and land cover change（ABM/LUCC）, an ecosystem process model（PnET-Ⅱ）, and a forest dynamic landscape model（LANDIS-Ⅱ） to simulate the change of forest aboveground biomass（AGB） which was driven by land use and climate change factors for the period of 2010–2050 in Taihe County of southern China, where subtropical coniferous plantations dominate. We conducted a series of land use and climate change scenarios to compare the differences in forest AGB. The results show that：（1） land use, including town expansion, deforestation and forest conversion and climate change are likely to influence forest AGB in the near future in Taihe County.（2） Though climate change will make a good contribution to an increase in forest AGB, land use change can result in a rapid decrease in the forest AGB and play a vital role in the integrated simulation. The forest AGB under the integrated scenario decreased by 53.7%（RCP2.6 ＋ land use）, 57.2%（RCP4.5 ＋ land use）, and 56.9%（RCP8.5 ＋ land use） by 2050, which is in comparison to the results under separate RCPs without land use disturbance.（3） The framework can offer a coupled method to better understand the complex and interactive ecological processes, which may provide some supports for adapting to land use and climate change, improving and optimizing plantation structure and function,and developing measures for sustainable forest management.
文摘Experiments in monitoring the removal of organic material and nitrogen and determining the amounts of mi- croorganism at different sites in the subsurface flow constructed wetland in Sihong county were performed. The results show that the removal of CODCr agrees with the kinetic equation of a first order reaction. The removal of pollutants varies with different seasons. The removal rates of CODCr, NH3-N, TN in the spring are 15%–23% higher than those in the autumn. The amount of ammonifier is larger than that of denitrifying bacteria and the amount of denitrifying bacte- ria is larger than that of nitrosomonas. The amount of bacteria around the plant roots is larger than that on the surface of the packing medium. No apparent change is observed for the amount of denitrifying bacteria and nitrosomonas between spring and autumn.
文摘Thoroughgoing studies of the homogenization temperatures, pressures and chendcal compositions offluid inclusions and the stable isotopes of hydrothermal minerals (quartz. calcite, pyrite and molybdenite)have thrown light on the evolution trend of the molybdenum-bearing hydrothermal system which originatedfrom magmatic processus and underwent significant mixing with meteoric waters in the later stages ofhydrothermal activity.
基金Supported by Jiangxi Province Program of Soft Science Foundation
文摘According to the discussion of domestic scholars on county talents,we know that the researches concerning county human resources mainly focus on discussing the problems such as the total amount,distribution,quality and introduction of county talents though the analysis of coordination between talents and county economic development,and the research of relationship between industry adjustment and talents need.However,there have no relevant documents about the analysis and discussion of county talents problems based on system schema theory.In view of this reality,on the basis of the introduction of the system schema theory propounded by management guru Peter Senge,we conduct the feedback schema analysis of the restricted factors of talents shortages during county economic development;establish the growth limits schema of county talents system;analyze the functioning mechanism of the total amount,distribution,quality and introduction of county talents on the development of county economy;discuss the relationship between the individual quality,social relation and emotional need of returning-home start-up,and talents resource shortage;propose the countermeasures and suggestions to mitigate the shortage of county talents,in order to optimize the allocation of county human resources,and promote the county's economic development.
文摘Water environment is a part of ecological environment, and conservation of water environment has always been a focus of public attention in China, but water environment management in the vast countryside has been stuck in bottleneck. Based on the fi eld investigation in Xianxia Town, Yudu County, Ganzhou City, Jiangxi Province, this paper explored the current situation of local water environment and the management diffi culties, then introduced the holistic view to integrate the linkage of government, market and society, proposed the universality of the individual case, and the new attempt centering on urban-rural integrated water environment management system with public participation mechanism, management subjects' benefit balance and coordination system, marketing operation mechanism and economic incentive mechanism as the extension.
文摘The common topic the mankind faces in the 21^st century is to strengthen construction and support the ecological secure. It is also the needs of establlshing socialist harmonious society in China. It is an arduous systematic project in ethnic group regions of China to realize economic and sodal sustainable development,promote the harmony between man and nature andrealize the coordination among the economic development population, natural resources and envinonment To develop ecosystem construction and the green indutry well is the basic path to realize the above goals. Huanren Manchu Autonomous County in Liaoning Province is abundant in forests, especially local products, medicinal materials, tourism resource, water resources and culotte resources. In order to develop its ecosystem, the strategies should be focused on enhancing protection consciousaess, brand consciousness, science and technology consciousoess and market consciousness. The ultimate purpose is to create the top-ranking ecosystem environment, industry system, policy systern and district civilization.
基金Supported by the Open Research Subject of Research Base of Local Culture Protection and Development Research Center(15DFWH016)Research Base of Sichuan Rural Development Research Center(CR1512)Research Base of Sichuan Province Multi-cultural Research Center(DYWH1507)
文摘Based on the field survey of dwellings in Tieqiong Village of Waerma Town in Aba County, northwest Tibetan area of Sichuan Province, this paper firstly introduced main characteristics of the construction system in the structure, materials and structural system, and analyzed changes in construction practices of various dwellings from traditional to modern time. Finally, it summarized characteristics of spontaneous evolution and research value of the construction system of dwellings in the northwest Tibetan area of Sichuan Province, with rammed earth wooden dwellings in upper and middle Aba areas as representatives.
基金supported by the Hi-tech Research and Development Program of China(Grant No.2006AA120108)
文摘Miyun County,located in the northeast of Chinese capital Beijing,was underwent remarkable variations in land use in recent years.This paper aimed to detect changes in land use of Miyun from 1997 to 2005,and to qualify the response of ecosystem to LUCC based on ecosystem services valuation.With two-periods TM images,we got land use change data,and then ecosystem services values were calculated using ecosystem services valuation coefficients proposed by Chinese scholar Xie Gaodi.Results showed that water area,farm land and unused land decreased while residential land,forest land,grassland and orchard land increased during the study period.The loss of ESV was RMB 206 million and the main reason was the decrease of water area and farm land area.As for spatial variation,there were most dramatically land use change and ESV decline in reservoir ecological protection region.The coefficient sensitivity analysis indicates that valuation coefficients used in the study are suitable and results are reasonable.The driving forces of ESV loss were rapid population growth and economic development.More work should be done to make eco-environment stay healthy.
基金Supported by Agricultural Science and Technology Extension Program
文摘From the perspective of environmental issues concerning land use and importance of county,we analyze the great significance of environment-friendly use of county land resources. On the basis of discussing the concept and connotation of environment-friendly utilization of land resources,we build the basic framework for the evaluation of environment-friendly utilization of land resources from environment,economy and society,and propose the evaluation methods combining composite index method and multi-angle single indicator evaluation method. At the same time,we establish the grading system and grading standards for environment-friendly county land use,to promote the qualitative and quantitative evaluation of environment-friendly county land use.
基金Supported by projects of National Natural Science Foundation of China(No.42071255)Jilin Province Philosophy and Social Science Think Tank Fund(No.2023JLSKZKZB066)Special Research of Northeast Revitaliza tion and Development of Jilin University(No.23dbzx10).
文摘It is of great significance to study the influence of spatial pattern change of cultivated land on eco-system service,including the sustainable utilization and ecological protection in black soil region in Northeast China.Taking Lishu County of Jilin Province as the study area,we quantitatively evaluated soil conservation,habitat quality,carbon storage and grain production service,and analyzed the change of cultivated land and ecosystem service pattern in Lishu County from 1990 to 2020 by using Pearson correlation analysis on the correlation between cultivated land change and ecosystem service.The results show that:(1)The cultivated land area of Lishu County was reduced by 19.67 km2,the characteristics of cultivated land change are signifi-cant;(2)the overall change rate of carbon storage,habitat quality,soil conservation and grain production ser-vice in the study area was 10.82%,-0.09%,4.07%and 1.80%,respectively.They all had significant spatial differentiation features;(3)the change of habitat quality,grain production service showed a significant pos-itive correlation with the change of cultivated land area.The change in soil conservation and carbon storage were negatively related to cultivated land area.In order to promote the rational development and utilization of cultivated land in the research area,it is suggested to scientifically carry out the comprehensive utilization of cultivated land reserve resources such as saline-alkali land,strengthen the management and protection of newly added cultivated land at the same time.The results can provide scientific reference for formulating comprehensive land use planning under ecological security conditions.
基金supported by the National Natural Science Foundation of China(Grant Nos.41361020,40961031)
文摘From the point of spatio-temporal changes of ecological system type,function and value,in Menglian county,land using/cover data was based on three Landsat TM images(respectively obtained in2000,2005,2010 and 2015) which were interpreted as basic information sources by using RS and GIS technology and then revising ecosystem service value per unit area in Menglian county.This paper has researched on the changes of ecosystem service value of economic garden for large area planting as well as evaluated ecosystem service value scientifically in Menglian county combined with the sensitivity analysis.The Results showed that:(1) In Menglian county,from 2000 to 2015,land use pattern manifested as the transformation from large areas of cultivated land,forest land and shrub to the economic landscape,the economic landscape is increased by 24458.31 hm^2,however,farm land,wood land and shrub are reduced by 24865.74 hm2 in total;(2) Changes of ecosystem service value is closely related to economic landscape development in Menglian county.The situation of ecosystem service value shows the changing trend from improvement to severity in 2000-2015.ESV is increased by 96.39 million yuan from 2000 to2005,whose annual growth rate is about 0.56%·a^(-1).But in the year of 2005 to 2015,ESV is reduced by120.23 million yuan and annual reduced rate is about 0.34%·a^(-1);(3) In Menglian county,the main ecological system is the woodland ecological system,the primary ecosystem service functions are biodiversity protection,gas regulation,soil formation and retention,climate regulation and water supply,the ecological benefit were decreased in 2000-2015;(4) From the aspect of space distribution,ecosystem service value in Menglian county is relatively high in the central area and relatively not high in the western and eastern area.ESV(yuan·hm`(-2)) was changed obvious,Gongxin town trended to decline,other towns increased first the then reduced.The temporal and spatial variation of ecosystem service value in Menglian county is affected by natural and human factors.The key to the development of economic landscape is rational land use according to the practical situation,which can create economic value and also keep its ecological value.
文摘At present, the overall economic and social development of our country is fast, but the rate of development of the remote land and territories in the land is still far behind the speed of the inland and the east. This has also triggered a series of frontier issues. This requires our frontier government to strengthen border governance, seize the opportunity to meet challenges, and at the same time we must also strengthen the assessment of the governance capacity of the frontier government. This article hopes that through the actual investigation and study of frontier counties and the consideration of border issues according to local conditions, a set of performance evaluation index system for frontier county-level governments will be proposed, which will help the frontier government in border control.
基金This research was funded by National Natural Science Foundation of China,grant number 41871151.
文摘Administrative division is an important means of political power reorganization and management,resource integration and optimal allocation,which profoundly shapes the spatial layout of urban development in China.To clarify and compare differences between counties,county-level cities and municipal districts is the primary premise for the study of administrative division and urban development.This paper analyzes the institutional differences between counties and county-level cities,as well as counties,county-level cities and municipal districts,from the aspects of organizational structure,urban construction planning,land management,finance,taxation and public services.The research shows that the establishment of counties,county-level cities and municipal districts adapt to different levels and stages of economic and social development,and the conversion from county to county-level city and the conversion from county(or county-level city)to municipal district are both important transformation ways to change their administrative systems,which has different management system and operation pattern.At the same time,the transformation of county-level administrative region is also a“double-edged sword”,we should think about the administrative system as a whole to decide whether it should be adjusted,and effectively respond to the actual needs of local economic and social development.
基金Supported by National Natural Science Foundation of China(42171206&42071159).
文摘[Objectives]To explore the spatiotemporal evolution and development drivers for Taobao villages in Cao County.[Methods]This paper employs GIS spatial analysis methods such as standard deviation ellipse and kernel density to characterize the spatial distribution,agglomeration,and correlation features of Taobao villages in Cao County at the township scale.Additionally,geographic detectors are used to explore influencing factors.[Results](i)The number of Taobao villages in Cao County exhibits phased characteristics,progressing through initial,rapid expansion,and stable development stages.(ii)Taobao villages are unevenly distributed,with significant clustering features,primarily concentrated in the southeastern part of the county.In recent years,they have expanded toward the central and northwestern regions,potentially forming a"multi-core"spatial pattern in the future.(iii)The number of garment industries and e-commerce industrial parks consistently remains the primary factor influencing the spatial distribution of Taobao villages.After 2020,the number of wood processing industries and specialty agricultural product processing industries also exerted considerable influence.The number of logistics parks began to have an impact after 2018,albeit a weak one.Other factors had minimal influence on the differentiation of Taobao villages.[Conclusions]The spatiotemporal evolution exhibited diffusion along the"northwest-southeast"axis,with strengthened regional clustering.Government policies and industries significantly influenced the differentiation of Taobao villages,with varying primary factors across different periods.
基金2024 Guiding Science and Technology Program of Fujian Province(No.2024H0026)2025 Innovation Fund Project of Fujian Province(No.2025C0004).
文摘This study develops a geological hazard evaluation index system for Shouning County,a key area for disaster prevention in Fujian Province.Through detailed investigation reports and field surveys,six factors were selected,including elevation,slope gradient,slope aspect,stratigraphic lithological group,distance from the water systems,and geological structures.A geological hazard susceptibility zoning map was created using the Information Quantity Method(IQM).The evaluation showed that elevation,slope aspect,and distance from the water systems are primary risk factors,with high and extremely high susceptibility areas covering 168.57 km^(2)(52.63%of the study area)and a disaster point density of 3.07 points/km^(2).The model achieved an accuracy of 0.73,validating its effectiveness in hazard assessment.These findings provide a valuable reference for disaster prediction and mitigation in Shouning County,supporting improved planning and risk management efforts.
文摘[Objectives]To assess the effectiveness of the intelligent small insect monitoring and forecasting system developed by Zhejiang Top Cloud-Agri Technology Co.,Ltd.in monitoring,providing early warnings,and identifying rice planthoppers.[Methods]In 2024,an experiment involving the automatic identification and counting of rice planthoppers was conducted using the intelligent small insect monitoring and forecasting system in the rice production demonstration area of Qingxichang Sub-district,Xiushan Autonomous County,Chongqing City.The results obtained were subsequently compared and analyzed against those derived from manual identification.[Results]The intelligent small insect monitoring and forecasting system achieved recognition accuracy rates of 95.14%,94.25%,and 97.78% for Nilaparvata lugens,Sogatella furcifera,and Laodelphax striatellus,respectively,resulting in an average accuracy rate of 95.72%.The outcomes derived from automatic recognition closely corresponded with those obtained through manual identification.[Conclusions]This research provides a reference for the optimization of the intelligent small insect monitoring and forecasting system.
