EI Salvador is gradually consolidating its position as a strategic destination for foreign direct investment,especially for countries with extensive experience in industrial,technological,and logistics development,suc...EI Salvador is gradually consolidating its position as a strategic destination for foreign direct investment,especially for countries with extensive experience in industrial,technological,and logistics development,such as the People’s Republic of China.Thanks to ambitious economic policies based on sustainability,inclusivity,and global competitiveness,the country has clearly defined a development agenda focused on priority sectors with high potential for international cooperation.展开更多
Promoting the deep integration of the innovation,industrial,capital,and talent chains is of great significance to driving high-quality economic and social development.Using the entropy method,a coupling coordination d...Promoting the deep integration of the innovation,industrial,capital,and talent chains is of great significance to driving high-quality economic and social development.Using the entropy method,a coupling coordination degree model,and a grey relational model,we measure the integration level and subsystem interactions within the Chengdu-Chongqing economic zone from 2019 to 2023.The findings indicate a generally positive trajectory and gradual improvement in overall integration,making a transition from early-stage factor accumulation to deep inter-chain synergy.However,development across the chains remains uneven.Although the talent and innovation chains show relative strength,the innovation chain has weak spillover effects on the industrial chain,with low technological conversion efficiency.The underdeveloped industrial chain further limits overall synergy.Synergistic effects are gradually emerging,but coordination barriers persist.To address these challenges,we recommend optimizing policies for the integration of the four chains,accelerating the conversion of innovations into industrial applications,strengthening alignment between capital and the industrial chain,and enhancing mechanisms for talent attraction and development.These measures are essential for fostering deeper regional integration of the four chains and optimizing the overall development framework.展开更多
[Objective] The aim was to survey and analyze informatization demand in new countryside in Poyang Lake Ecological Economic Zone and to propose counter- measures, [Method] A questionnaire was made among farmers on info...[Objective] The aim was to survey and analyze informatization demand in new countryside in Poyang Lake Ecological Economic Zone and to propose counter- measures, [Method] A questionnaire was made among farmers on informatization de- mands in different regions in Poyang Lake Ecological Economic Zone and the re- sults were analyzed to propose countermeasures promoting informatization. [Result] With strengthening of information awareness, information demands in rural areas in Poyang Lake Ecological Economic Zone change as follows： Information demand car- rier changes from traditional media to modern media; demand on information content changes from one-way to diversified one; demand of information service changes from one-way transmission to interaction and exchange. However, some problems still exist in informatization process, such as poor infrastructure, dispersed information resources, higher information expense and shortage of information-based talents. Hence, the countermeasures were proposed, as follows： Rational security systems should be established; financing should be as diversified as possible; informatization infrastructure should be reinforced; agricultural economic information and informatiza- tion service system should be established. [Conclusion] The research lays foundation for construction of informatization in new countryside in Poyang Lake Ecological Economic Zone.展开更多
Based on an SBM model, this paper first analyzes the spatial differences of urban industrial land use efficiency （UILUE） in the six main economic zones of China. Then, we analyze the dynamic changes in the urban ind...Based on an SBM model, this paper first analyzes the spatial differences of urban industrial land use efficiency （UILUE） in the six main economic zones of China. Then, we analyze the dynamic changes in the urban industrial land＇s total factor productivity （UILTFP） by using the Malmquist productivity index approach, and we examine the UILTFP＇s conver- gence. The results show that the Pearl River Delta and the Yangtze River Delta have a higher UILUEs but show downward trends in UILTFPs. The other four zones, Beijing--rianjin-Hebei, Chengdu-Chongqing, Guanzhong-Tianshui and the Central Plains, show poorer UILUEs but have upward trends in UILTFPs. A significant excess supply of industrial land and labor exists in all six zones, and the zones in economically developed areas perform better in industrial output. The results of the convergence test do not support a-convergence but support condi- tional/3-convergence for all zones. These results indicate that the gaps in the UILTFP of in- dustrial land in all six zones, in fact, do not narrow, and the UILTFPs of cities will converge to their own steady states. The regression results of the influencing factors show that the ur- banization rate should be increased in the Pearl River Delta and reduced in Bei- jing-Tianjin-Hebei. The Yangtze River Delta and Chengdu-Chongqing should pay more atten- tion to the problem of industrial labor surplus, and the Pearl River Delta should reduce the proportion of industrial output. All zones should focus on improving the quality of the industrial economy and the land use intensity.展开更多
The environmental ecology of the Yangtze River Economic Zone(YREZ)faces ecological function decline,deterioration and degradation under intense human activities,long-term development and utilization and its economy ha...The environmental ecology of the Yangtze River Economic Zone(YREZ)faces ecological function decline,deterioration and degradation under intense human activities,long-term development and utilization and its economy has developed rapidly over recent decades.Eco-efficiency is considered as a measure of coordinated development of economy,resources,environment and ecology,and is currently considered a very important issue.In this paper,based on the slack-based measure and data envelope analysis model,we take 129 prefecture-level cities of the YREZ as the study unit and measure the eco-efficiency of the YREZ in 2000,2005,2010 and 2015,which considers undesired output.The evaluation of the status quo of the regional eco-efficiency development was carried out at provincial,prefectural and city scales.The spatial autocorrelation test model and standard deviation ellipse were used to analyze the spatially distributed characteristics and the evolutionary regularity of eco-efficiency.Our study suggested that the eco-efficiency value varied significantly at different spatiotemporal scales and the overall distribution presented an"N-shaped"pattern,the value is the largest downstream and the smallest upstream.Regional eco-efficiency presented certain volatility in growth and a clear spatial positive agglomeration trend from 2000 to 2015.The spatial distribution of each agglomeration area was also significantly different,forming some high-high agglomeration areas at the center of the shaft with Shanghai and surrounding cities,and some low-low agglomeration areas at the center with middle reaches and upstream cities.The low-high over-aggregation and high-low polarization clusters were fewer.At the same time,with the change of the research period,the degree of positive agglomeration became increasingly pronounced and the eco-efficiency gap of the neighborhoodunit reduced.The regional eco-efficiency value of the YREZ presented a spatial distribution pattern in the northeast-southwest axis and the evolutionary pattern of the regional eco-efficiency similarly showed a northeast-southwest orientation.展开更多
Free economic zone (FEZ) has a long history and plays a more and more important role in the world economy. Most studies, however, focused on the theoretical analysis of benefit and cost as well as the economic role of...Free economic zone (FEZ) has a long history and plays a more and more important role in the world economy. Most studies, however, focused on the theoretical analysis of benefit and cost as well as the economic role of FEZ in the less developed countries and little attention has been paid to the evolution of FEZ. This paper will improve the above-mentioned studies and put forward the structural and spatial evolutionary model of FEZ by analyzing the development of objectives, preferential policy, governance structure, industrial sectors and location of FEZs based on the international economic and political development. FEZs develop towards: 1) more comprehensive and macro objectives, 2) more industry-oriented and multi-preferential policies, 3) more cross-national and combination zones with administrative areas, 4) more technology-intensive and multi-industries, 5) more flexible location and larger spatial dimensions, 6) more rapid evolution and typologies, and 7) more economic integration to the host economy.展开更多
China's overseas industrial parks contribute to political and economic cooperation, cultural exchange between home and host countries. Current studies mainly discuss the effect of overseas industrial parks from th...China's overseas industrial parks contribute to political and economic cooperation, cultural exchange between home and host countries. Current studies mainly discuss the effect of overseas industrial parks from the perspective of institutional and cultural difference, multi-scale coupling, as well as key partnerships, while little attention has been paid to the comprehensive analysis of overseas industrial parks. Based on a theoretical framework, this paper explores the overall effect of China's overseas industrial parks from the geo-effects perspective by using field interviews and a case study approach. The research shows that:(1) the geo-effects reveal the over effect of overseas industrial parks from the multiple and complementary dimensions of geopolitics, geo-economics, geo-society and geo-culture;(2) the Cambodia Sihanoukville Special Economic Zone, as a flagship BRI project, has produced the prominent and positive geo-effects;(3) the institutional-economic-cultural-environmental adaptability of overseas industrial parks is becoming important. Overseas industrial parks must be rooted in the politics, economy, society, and culture of host country;embedded in local social networks;balance the rights and interests of all stakeholders;and form the community of interests, community of destiny, and community of responsibility with political mutual trust, economic integration, cultural inclusiveness, and social harmony. The paper not only deepens the understanding about the overall effect of overseas industrial parks, but also provides decision support and theoretical reference for government policy makers and the overseas investment of enterprises.展开更多
Accurate and rapid evaluation of the regional eco-environment is critical to policy formulation.The remote sensing ecological index(RSEI)model of the Guangxi Beibu Gulf Economic Zone(GBGEZ)during 2001-2020 was establi...Accurate and rapid evaluation of the regional eco-environment is critical to policy formulation.The remote sensing ecological index(RSEI)model of the Guangxi Beibu Gulf Economic Zone(GBGEZ)during 2001-2020 was established and evaluated using four indices:dryness,wetness,greenness,and heat.This paper proposes an information granulation method for remote sensing based on the RSEI index value that uses granular computing.We found that:(1)From 2001 to 2020,the eco-environmental quality(EEQ)of GBGEZ tended to improve,and the spatial difference tended to expand.The regional spatial distribution of the eco-environment is primarily in the second-level and third-level areas,and the EEQ in the east and west is better than that in the middle.The contribution of greenness,wetness,and dryness to the improvement of EEQ in the study region increased year by year.(2)From 2001to 2020,the order of the contribution of the EEQ index in the GBGEZ was dryness,wetness,greenness,and heat.(3)The social and economic activities in the study region had a certain inhibitory effect on the improvement of the EEQ.展开更多
The SO 2 emission sources of the Chengdu-Chongqing economic zone were divided into 556 emissions units according to four different categories,which are city,industry,point sources,and area sources.The CALPUFF model wa...The SO 2 emission sources of the Chengdu-Chongqing economic zone were divided into 556 emissions units according to four different categories,which are city,industry,point sources,and area sources.The CALPUFF model was used to calculate the contribution of each unit,and consequently obtain an influence-transferring matrix.To ensure that the SO 2 concentrations of 46 cities and counties in the Chengdu-Chongqing economic zone meet air quality standards,an emission optimization model was developed to calculate optimal emissions of each emission unit under different development scenarios.The result showed the optimal emissions of SO 2 by different provinces and industries.To achieve the target of restricting and optimizing development,corresponding planning programs were developed for every district.展开更多
In this research, soil samples were collected from Shandong Peninsula Blue Economic Zone to investigate heavy metal pollutions in this region and to evaluate the potential ecological risks of heavy metal pollutants ba...In this research, soil samples were collected from Shandong Peninsula Blue Economic Zone to investigate heavy metal pollutions in this region and to evaluate the potential ecological risks of heavy metal pollutants based on Hakanson Potential Ecological Risk Indexes. According to the results, Hg was the primary heavy metal pollutant in Blue Economic Zone, followed by Cd, Cu, and Pb as prevalent pollutants. Heavy metals ranked in order of their pollution degrees are: Hg>Cd>Cu>Pb>Zn>Cr>As;the potential ecological risks of heavy metals follow the order of Hg>Cd>As>Pb>Cu>Cr>Zn. Heavy metal pollutions did exist in this region to a certain extent, and the percentage of potential ecological risk in “strong” and “severe” degree reached up to 13.75%. This composite risk characteristic was subject to the restriction of Hg and Cd mainly distributed in Laizhou-Zhaoyuan- Yantai, Muping-Rushan Goldmine, and other densely-populated regions, threatening the safety production of crops. The combined effects of geological background and human activities, e.g. gold mining and domestic pollutants, were the main causes of high potential ecological risks of heavy metals in local environment.展开更多
A multi-level evaluation index system is established with farmland protection as the target layer,farmland quantity,farmland quality andfarmland sustainable development as the criterion layer.And the index layer inclu...A multi-level evaluation index system is established with farmland protection as the target layer,farmland quantity,farmland quality andfarmland sustainable development as the criterion layer.And the index layer includes the quantity change of farmland,per capita farmland area,multiple cropping index,total grain yield,unit grain yield,per capita grain security coefficient,and unit machinery dynamical input.Both expert eval-uation method and factor analysis method are used to determine the weight of index.According to the data in farmland area,grain yield and eco-nomic development in Urumqi-Changji Economic Zone in the years 1996-2007,a comprehensive evaluation model of intensive farmland use inUrumqi-Changji Economic Zone is established after data standardization.The overall implementation effect of farmland protection policy is ana-lyzed by integrating the farmland quantity,farmland quality and sustainable development.Result shows that implementation effect of farmland pro-tection shows an upward trend in general in Urumqi-Changji Economic Zone in the years 1996-2007,with a fluctuation in the years 2000-2003and a stable rising phase from 2004 till now.The maximum value is 0.779 in the year 2007;the minimum value is 0.242 in the year 1996;and themean value in the years 1996-2007 is 0.454.Farmland protection at first strictly controls the farmland quantity,then pays attention to farmlandquality,and finally focuses on the sustainable use of farmland.展开更多
Cultivated land pressure represents a direct reflection of grain security. Existing relevant studies rarely approached the spatiotemporal pattern of cultivated land pressure or the spatial heterogeneity of its influen...Cultivated land pressure represents a direct reflection of grain security. Existing relevant studies rarely approached the spatiotemporal pattern of cultivated land pressure or the spatial heterogeneity of its influencing factors from the level of economic zones.Taking the Huaihai Economic Zone(HEZ), China for case analysis, this study investigated the spatiotemporal pattern of cultivated land pressure in diverse periods from 2000 to 2018 based on a modified cultivated land pressure index and spatial correlation models. On this basis, it explored the influencing factors of the spatial differentiation of cultivated land pressure in the late stage of the study using geographical detector as well as multi-scale geographically weighted regression model. The results indicated that: 1) in the study period, the global cultivated land pressure index of the study area decreased gradually, but cultivated land pressure increased locally in a significant way, especially in the central and southern Shandong Province;2) the spatial pattern of cultivated land pressure manifested global clustering features. Hot and secondary-hot spots presented a narrowing and clustering trend, whereas cold and secondary-cold spots manifested a spreading and clustering trend;3) average slope, the proportion of non-grain crops, population urbanization rate, and multiple cropping index have significant effects on the spatial differentiation of cultivated land pressure. The former three factors were positively correlated with cultivated land pressure, and the last factor was negatively correlated with cultivated land pressure;and 4) the amount of cultivated land has increased in the central and southern Shandong Province through land consolidation which, nonetheless, failed to improve the grain production. In regards to major grain producing areas similar to the HEZ in China, the authors suggest that great importance should be given to the balance of the quality and quantity of cultivated land, the optimization of agricultural production factors and the rational control of non-grain crops, thus providing a powerful guarantee for grain security in China.展开更多
High-level investment facilitation is crucial for China's overseas free economic zones(COFEZs)to attract and retain investment,mitigate business interruption risks,and foster a virtuous cycle.While research on inv...High-level investment facilitation is crucial for China's overseas free economic zones(COFEZs)to attract and retain investment,mitigate business interruption risks,and foster a virtuous cycle.While research on investment facilitation in COFEZs has mainly focused on summarizing and examining the investment facilitation measures adopted by typical national-level examples of COFEZs,relatively little attention has been paid to investigating the overall level and general problems of investment facilitation across COFEZs.This study expands the scope of case investigations by taking 60 COFEZs as samples.It constructs a comprehensive evaluation indicator system which includes four dimensions:industrial infrastructure,social infrastructure,business support services,and seamless administrative supervision.By employing content analysis and regression analysis,this study identifies the characteristics and influencing factors of investment facilitation level in COFEZs.The results show that the overall level of investment facilitation in COFEZs is currently low.Specifically,COFEZs exhibit higher levels of investment facilitation in processing and manufacturing types and in Europe,while those in trade and logistics types and in Africa are relatively poor.Industrial infrastructure and business support services contribute more significantly to the overall scores of investment facilitation in COFEZs compared to social infrastructure and seamless administrative supervision.The investment facilitation level in COFEZs is essentially the result of a series of behaviors by developers and host governments,and it is affected by a combination of developers'perceptions of investment facilitation and the social environment in which developers and host governments promote investment facilitation.This study offers a new perspective on understanding COFEZs and contributes to the sustainable development of COFEZs.展开更多
Special economic zones are important bridges between Chinaand intemational market. Their economic structure is being transformed andnew land use strategies should be taken correspondingly. HainanProvince, as the big...Special economic zones are important bridges between Chinaand intemational market. Their economic structure is being transformed andnew land use strategies should be taken correspondingly. HainanProvince, as the biggest special economic zone, has great superiorities andpotentialities for the development of land use. In order to realize the goal,the present land use decision should be mainly guided by market, moreattention should be paid to tropical agriculture and aquatic productindustry, the principle of sustainable development should be strengthened,and the area of farmland for grain production should be stabilized.展开更多
The conflict between city development and urban carrying capacity is getting ever prominent.In order to study and predict the restriction factors and prominent problems in the development of the Shandong Peninsula Blu...The conflict between city development and urban carrying capacity is getting ever prominent.In order to study and predict the restriction factors and prominent problems in the development of the Shandong Peninsula Blue Economic Zone as well as promote the transfer of economic development pattern in this region,this study starts from four single factor carrying capacity indicators of water,earth,transportation and environment in the city and its comprehensive carrying capacity indicator,evaluates and analyzes its carrying capacity and then papooses policy suggestions for improving its carrying capacity.展开更多
Abstract The level of emergency ability directly reflects response effect of an area to emergency. Taking Central Plains Economic Zone as re- search object, by documents retrieval, field survey, mechanism analysis and...Abstract The level of emergency ability directly reflects response effect of an area to emergency. Taking Central Plains Economic Zone as re- search object, by documents retrieval, field survey, mechanism analysis and logical reasoning, evaluation index system for emergency ability of ag- ricultural environmental pollution incident was established, which included 5 first grade indexes, 19 second grade indexes and 53 third grade inde- xes. By mechanism analysis and mathematical derivation, evaluation model for emergency ability of agricultural environmental pollution incident： I =m∑i=1∑j=1Pij, On this basis, four prefecture-level cities （A, B, C and D） of Central Plains Economic Zone were evaluated by using the index system and the evaluated model. The research could provide important theoretical reference for emergency ability construction of agricultural environmental pol- lution incident in Central Plains Economic Zone.展开更多
Based on analyzing and summarizing the previous research results,the existing problems in the researches of tourism resources development in the ecological economic zone of Poyang Lake were analyzed. And then the rese...Based on analyzing and summarizing the previous research results,the existing problems in the researches of tourism resources development in the ecological economic zone of Poyang Lake were analyzed. And then the research trend in the future was pointed out.展开更多
This paper elaborated the bidding scheme design of the Central Recreational Area in Linkong Economic Zone from the perspectives of site analysis, determination of properties, design theme and principle, scheme layout ...This paper elaborated the bidding scheme design of the Central Recreational Area in Linkong Economic Zone from the perspectives of site analysis, determination of properties, design theme and principle, scheme layout and conception, in order to explore the potential enlightenments of the scheme design process, and disclose significance of site analysis and its close relationship with the scheme design.展开更多
1. Name of development areas and industrial sections: Tianjin Economic and Technological Development Area Location: Tonggu Area (state class) Planned area (sq.km): 33 Developed Area: 19 Key industries to be developed:...1. Name of development areas and industrial sections: Tianjin Economic and Technological Development Area Location: Tonggu Area (state class) Planned area (sq.km): 33 Developed Area: 19 Key industries to be developed: Electronics, machinery and electrical, light industry, refined chemical, foodstuffs, new type building materials, new technology development Add: No. 1, First Avenue, Tianjin Economic and technological Development展开更多
Inward foreign direct investment （FDI） is expected to grow further by virtue of economic globalization. A thorough understanding of the locational determinants of inward FDI will be conducive to enhanced efficiency ...Inward foreign direct investment （FDI） is expected to grow further by virtue of economic globalization. A thorough understanding of the locational determinants of inward FDI will be conducive to enhanced efficiency in attracting direct and SOC-related investments from foreign entities. This study analyzes 51 cases of inward direct foreign investment made in the Incheon free economic zone （IFEZ） from 2002 to 2009 to determine the factors influencing FDI volume, the relevance of locations and the correlation between investment size and location. First, the relationship between the loeational determinants of FDI and the total investment size （total expected project cost） is analyzed. Second, the relationship between the locational determinants of FDI and the FDI is analyzed. Third, the relationship between the locational determinants of FDI and the location choice is analyzed. The results indicate the determinants that influence locations and investment size of FDI entities; whether these factors exercise influence in the zone; and the factors that have relatively significant effects. Ultimately, based on the analytical findings, a few implications for policy and practice are derived.展开更多
文摘EI Salvador is gradually consolidating its position as a strategic destination for foreign direct investment,especially for countries with extensive experience in industrial,technological,and logistics development,such as the People’s Republic of China.Thanks to ambitious economic policies based on sustainability,inclusivity,and global competitiveness,the country has clearly defined a development agenda focused on priority sectors with high potential for international cooperation.
基金supported by the Soft Science Project of the Chengdu Science and Technology Bureau,“Research on the Cultivation Path of Chengdu’s Future Industries under the Dual Drive of‘Missions and Scenarios’”(No.2025-RK00-00180-ZF)by the Ninth“Academic Seedling”Project of the Sichuan Academy of Social Sciences,“Measurement,Problem Diagnosis,and Optimization Path Research for the High-Quality Development of the Chengdu-Chongqing Economic Zone from the Perspective of Dual Circulation”(No.202512011).
文摘Promoting the deep integration of the innovation,industrial,capital,and talent chains is of great significance to driving high-quality economic and social development.Using the entropy method,a coupling coordination degree model,and a grey relational model,we measure the integration level and subsystem interactions within the Chengdu-Chongqing economic zone from 2019 to 2023.The findings indicate a generally positive trajectory and gradual improvement in overall integration,making a transition from early-stage factor accumulation to deep inter-chain synergy.However,development across the chains remains uneven.Although the talent and innovation chains show relative strength,the innovation chain has weak spillover effects on the industrial chain,with low technological conversion efficiency.The underdeveloped industrial chain further limits overall synergy.Synergistic effects are gradually emerging,but coordination barriers persist.To address these challenges,we recommend optimizing policies for the integration of the four chains,accelerating the conversion of innovations into industrial applications,strengthening alignment between capital and the industrial chain,and enhancing mechanisms for talent attraction and development.These measures are essential for fostering deeper regional integration of the four chains and optimizing the overall development framework.
文摘[Objective] The aim was to survey and analyze informatization demand in new countryside in Poyang Lake Ecological Economic Zone and to propose counter- measures, [Method] A questionnaire was made among farmers on informatization de- mands in different regions in Poyang Lake Ecological Economic Zone and the re- sults were analyzed to propose countermeasures promoting informatization. [Result] With strengthening of information awareness, information demands in rural areas in Poyang Lake Ecological Economic Zone change as follows： Information demand car- rier changes from traditional media to modern media; demand on information content changes from one-way to diversified one; demand of information service changes from one-way transmission to interaction and exchange. However, some problems still exist in informatization process, such as poor infrastructure, dispersed information resources, higher information expense and shortage of information-based talents. Hence, the countermeasures were proposed, as follows： Rational security systems should be established; financing should be as diversified as possible; informatization infrastructure should be reinforced; agricultural economic information and informatiza- tion service system should be established. [Conclusion] The research lays foundation for construction of informatization in new countryside in Poyang Lake Ecological Economic Zone.
基金National Natural Science Foundation of China, No.41361111 Science Foundation of Jiangxi, No. 20143ACB21023, No.20142BAB203028） Fok Ying-Tung Fund, No.141084
文摘Based on an SBM model, this paper first analyzes the spatial differences of urban industrial land use efficiency （UILUE） in the six main economic zones of China. Then, we analyze the dynamic changes in the urban industrial land＇s total factor productivity （UILTFP） by using the Malmquist productivity index approach, and we examine the UILTFP＇s conver- gence. The results show that the Pearl River Delta and the Yangtze River Delta have a higher UILUEs but show downward trends in UILTFPs. The other four zones, Beijing--rianjin-Hebei, Chengdu-Chongqing, Guanzhong-Tianshui and the Central Plains, show poorer UILUEs but have upward trends in UILTFPs. A significant excess supply of industrial land and labor exists in all six zones, and the zones in economically developed areas perform better in industrial output. The results of the convergence test do not support a-convergence but support condi- tional/3-convergence for all zones. These results indicate that the gaps in the UILTFP of in- dustrial land in all six zones, in fact, do not narrow, and the UILTFPs of cities will converge to their own steady states. The regression results of the influencing factors show that the ur- banization rate should be increased in the Pearl River Delta and reduced in Bei- jing-Tianjin-Hebei. The Yangtze River Delta and Chengdu-Chongqing should pay more atten- tion to the problem of industrial labor surplus, and the Pearl River Delta should reduce the proportion of industrial output. All zones should focus on improving the quality of the industrial economy and the land use intensity.
基金The Strategic Priority Research Program of Chinese Academy of Sciences,No.XDA23060704State Key Laboratory of Cryospheric Science,No.SKLCS-ZZ-2020。
文摘The environmental ecology of the Yangtze River Economic Zone(YREZ)faces ecological function decline,deterioration and degradation under intense human activities,long-term development and utilization and its economy has developed rapidly over recent decades.Eco-efficiency is considered as a measure of coordinated development of economy,resources,environment and ecology,and is currently considered a very important issue.In this paper,based on the slack-based measure and data envelope analysis model,we take 129 prefecture-level cities of the YREZ as the study unit and measure the eco-efficiency of the YREZ in 2000,2005,2010 and 2015,which considers undesired output.The evaluation of the status quo of the regional eco-efficiency development was carried out at provincial,prefectural and city scales.The spatial autocorrelation test model and standard deviation ellipse were used to analyze the spatially distributed characteristics and the evolutionary regularity of eco-efficiency.Our study suggested that the eco-efficiency value varied significantly at different spatiotemporal scales and the overall distribution presented an"N-shaped"pattern,the value is the largest downstream and the smallest upstream.Regional eco-efficiency presented certain volatility in growth and a clear spatial positive agglomeration trend from 2000 to 2015.The spatial distribution of each agglomeration area was also significantly different,forming some high-high agglomeration areas at the center of the shaft with Shanghai and surrounding cities,and some low-low agglomeration areas at the center with middle reaches and upstream cities.The low-high over-aggregation and high-low polarization clusters were fewer.At the same time,with the change of the research period,the degree of positive agglomeration became increasingly pronounced and the eco-efficiency gap of the neighborhoodunit reduced.The regional eco-efficiency value of the YREZ presented a spatial distribution pattern in the northeast-southwest axis and the evolutionary pattern of the regional eco-efficiency similarly showed a northeast-southwest orientation.
文摘Free economic zone (FEZ) has a long history and plays a more and more important role in the world economy. Most studies, however, focused on the theoretical analysis of benefit and cost as well as the economic role of FEZ in the less developed countries and little attention has been paid to the evolution of FEZ. This paper will improve the above-mentioned studies and put forward the structural and spatial evolutionary model of FEZ by analyzing the development of objectives, preferential policy, governance structure, industrial sectors and location of FEZs based on the international economic and political development. FEZs develop towards: 1) more comprehensive and macro objectives, 2) more industry-oriented and multi-preferential policies, 3) more cross-national and combination zones with administrative areas, 4) more technology-intensive and multi-industries, 5) more flexible location and larger spatial dimensions, 6) more rapid evolution and typologies, and 7) more economic integration to the host economy.
基金Tianjin Normal University Doctoral Fund,No.52XB1901National Natural Science Foundation of China,No.41701133, No.41971161+1 种基金Major Program of National Social Science Foundation of China,No.20&ZD138Tianjin Normal University Interdisciplinary Integration Innovation Team Project,No.135205RH08。
文摘China's overseas industrial parks contribute to political and economic cooperation, cultural exchange between home and host countries. Current studies mainly discuss the effect of overseas industrial parks from the perspective of institutional and cultural difference, multi-scale coupling, as well as key partnerships, while little attention has been paid to the comprehensive analysis of overseas industrial parks. Based on a theoretical framework, this paper explores the overall effect of China's overseas industrial parks from the geo-effects perspective by using field interviews and a case study approach. The research shows that:(1) the geo-effects reveal the over effect of overseas industrial parks from the multiple and complementary dimensions of geopolitics, geo-economics, geo-society and geo-culture;(2) the Cambodia Sihanoukville Special Economic Zone, as a flagship BRI project, has produced the prominent and positive geo-effects;(3) the institutional-economic-cultural-environmental adaptability of overseas industrial parks is becoming important. Overseas industrial parks must be rooted in the politics, economy, society, and culture of host country;embedded in local social networks;balance the rights and interests of all stakeholders;and form the community of interests, community of destiny, and community of responsibility with political mutual trust, economic integration, cultural inclusiveness, and social harmony. The paper not only deepens the understanding about the overall effect of overseas industrial parks, but also provides decision support and theoretical reference for government policy makers and the overseas investment of enterprises.
基金Guangxi Natural Science Foundation,No.2020GXNSFAA297176National Natural Science Foundation of China,No.U21A2022,No.42101369Youth Teacher Scientific Research Ability Improvement Project of Guangxi,No.2021KY0393。
文摘Accurate and rapid evaluation of the regional eco-environment is critical to policy formulation.The remote sensing ecological index(RSEI)model of the Guangxi Beibu Gulf Economic Zone(GBGEZ)during 2001-2020 was established and evaluated using four indices:dryness,wetness,greenness,and heat.This paper proposes an information granulation method for remote sensing based on the RSEI index value that uses granular computing.We found that:(1)From 2001 to 2020,the eco-environmental quality(EEQ)of GBGEZ tended to improve,and the spatial difference tended to expand.The regional spatial distribution of the eco-environment is primarily in the second-level and third-level areas,and the EEQ in the east and west is better than that in the middle.The contribution of greenness,wetness,and dryness to the improvement of EEQ in the study region increased year by year.(2)From 2001to 2020,the order of the contribution of the EEQ index in the GBGEZ was dryness,wetness,greenness,and heat.(3)The social and economic activities in the study region had a certain inhibitory effect on the improvement of the EEQ.
基金supported by the project of Megaregional SEA of the Chengdu-Chongqing economic zone (No. 2110203)the National High Technology Research and Development Program (863) of China (No. 2006AA06A307)supported by the National Basic Research Foundation for Public Welfare Research Institutes (No. 2009KYYW11)
文摘The SO 2 emission sources of the Chengdu-Chongqing economic zone were divided into 556 emissions units according to four different categories,which are city,industry,point sources,and area sources.The CALPUFF model was used to calculate the contribution of each unit,and consequently obtain an influence-transferring matrix.To ensure that the SO 2 concentrations of 46 cities and counties in the Chengdu-Chongqing economic zone meet air quality standards,an emission optimization model was developed to calculate optimal emissions of each emission unit under different development scenarios.The result showed the optimal emissions of SO 2 by different provinces and industries.To achieve the target of restricting and optimizing development,corresponding planning programs were developed for every district.
文摘In this research, soil samples were collected from Shandong Peninsula Blue Economic Zone to investigate heavy metal pollutions in this region and to evaluate the potential ecological risks of heavy metal pollutants based on Hakanson Potential Ecological Risk Indexes. According to the results, Hg was the primary heavy metal pollutant in Blue Economic Zone, followed by Cd, Cu, and Pb as prevalent pollutants. Heavy metals ranked in order of their pollution degrees are: Hg>Cd>Cu>Pb>Zn>Cr>As;the potential ecological risks of heavy metals follow the order of Hg>Cd>As>Pb>Cu>Cr>Zn. Heavy metal pollutions did exist in this region to a certain extent, and the percentage of potential ecological risk in “strong” and “severe” degree reached up to 13.75%. This composite risk characteristic was subject to the restriction of Hg and Cd mainly distributed in Laizhou-Zhaoyuan- Yantai, Muping-Rushan Goldmine, and other densely-populated regions, threatening the safety production of crops. The combined effects of geological background and human activities, e.g. gold mining and domestic pollutants, were the main causes of high potential ecological risks of heavy metals in local environment.
基金Supported by the Xinjiang Social Science Fund Project (07JYB029)
文摘A multi-level evaluation index system is established with farmland protection as the target layer,farmland quantity,farmland quality andfarmland sustainable development as the criterion layer.And the index layer includes the quantity change of farmland,per capita farmland area,multiple cropping index,total grain yield,unit grain yield,per capita grain security coefficient,and unit machinery dynamical input.Both expert eval-uation method and factor analysis method are used to determine the weight of index.According to the data in farmland area,grain yield and eco-nomic development in Urumqi-Changji Economic Zone in the years 1996-2007,a comprehensive evaluation model of intensive farmland use inUrumqi-Changji Economic Zone is established after data standardization.The overall implementation effect of farmland protection policy is ana-lyzed by integrating the farmland quantity,farmland quality and sustainable development.Result shows that implementation effect of farmland pro-tection shows an upward trend in general in Urumqi-Changji Economic Zone in the years 1996-2007,with a fluctuation in the years 2000-2003and a stable rising phase from 2004 till now.The maximum value is 0.779 in the year 2007;the minimum value is 0.242 in the year 1996;and themean value in the years 1996-2007 is 0.454.Farmland protection at first strictly controls the farmland quantity,then pays attention to farmlandquality,and finally focuses on the sustainable use of farmland.
基金Under the auspices of National Natural Science Foundation of China (No.42071229,41671174)Priority Academic Program Development of Jiangsu Higher Education Institutions (No.164320H116)。
文摘Cultivated land pressure represents a direct reflection of grain security. Existing relevant studies rarely approached the spatiotemporal pattern of cultivated land pressure or the spatial heterogeneity of its influencing factors from the level of economic zones.Taking the Huaihai Economic Zone(HEZ), China for case analysis, this study investigated the spatiotemporal pattern of cultivated land pressure in diverse periods from 2000 to 2018 based on a modified cultivated land pressure index and spatial correlation models. On this basis, it explored the influencing factors of the spatial differentiation of cultivated land pressure in the late stage of the study using geographical detector as well as multi-scale geographically weighted regression model. The results indicated that: 1) in the study period, the global cultivated land pressure index of the study area decreased gradually, but cultivated land pressure increased locally in a significant way, especially in the central and southern Shandong Province;2) the spatial pattern of cultivated land pressure manifested global clustering features. Hot and secondary-hot spots presented a narrowing and clustering trend, whereas cold and secondary-cold spots manifested a spreading and clustering trend;3) average slope, the proportion of non-grain crops, population urbanization rate, and multiple cropping index have significant effects on the spatial differentiation of cultivated land pressure. The former three factors were positively correlated with cultivated land pressure, and the last factor was negatively correlated with cultivated land pressure;and 4) the amount of cultivated land has increased in the central and southern Shandong Province through land consolidation which, nonetheless, failed to improve the grain production. In regards to major grain producing areas similar to the HEZ in China, the authors suggest that great importance should be given to the balance of the quality and quantity of cultivated land, the optimization of agricultural production factors and the rational control of non-grain crops, thus providing a powerful guarantee for grain security in China.
基金Key Program of the National Social Science Fund of China,No.22AZD052。
文摘High-level investment facilitation is crucial for China's overseas free economic zones(COFEZs)to attract and retain investment,mitigate business interruption risks,and foster a virtuous cycle.While research on investment facilitation in COFEZs has mainly focused on summarizing and examining the investment facilitation measures adopted by typical national-level examples of COFEZs,relatively little attention has been paid to investigating the overall level and general problems of investment facilitation across COFEZs.This study expands the scope of case investigations by taking 60 COFEZs as samples.It constructs a comprehensive evaluation indicator system which includes four dimensions:industrial infrastructure,social infrastructure,business support services,and seamless administrative supervision.By employing content analysis and regression analysis,this study identifies the characteristics and influencing factors of investment facilitation level in COFEZs.The results show that the overall level of investment facilitation in COFEZs is currently low.Specifically,COFEZs exhibit higher levels of investment facilitation in processing and manufacturing types and in Europe,while those in trade and logistics types and in Africa are relatively poor.Industrial infrastructure and business support services contribute more significantly to the overall scores of investment facilitation in COFEZs compared to social infrastructure and seamless administrative supervision.The investment facilitation level in COFEZs is essentially the result of a series of behaviors by developers and host governments,and it is affected by a combination of developers'perceptions of investment facilitation and the social environment in which developers and host governments promote investment facilitation.This study offers a new perspective on understanding COFEZs and contributes to the sustainable development of COFEZs.
文摘Special economic zones are important bridges between Chinaand intemational market. Their economic structure is being transformed andnew land use strategies should be taken correspondingly. HainanProvince, as the biggest special economic zone, has great superiorities andpotentialities for the development of land use. In order to realize the goal,the present land use decision should be mainly guided by market, moreattention should be paid to tropical agriculture and aquatic productindustry, the principle of sustainable development should be strengthened,and the area of farmland for grain production should be stabilized.
基金supported by China National Soft Science Research Program[grant number 2013GXS4D129]
文摘The conflict between city development and urban carrying capacity is getting ever prominent.In order to study and predict the restriction factors and prominent problems in the development of the Shandong Peninsula Blue Economic Zone as well as promote the transfer of economic development pattern in this region,this study starts from four single factor carrying capacity indicators of water,earth,transportation and environment in the city and its comprehensive carrying capacity indicator,evaluates and analyzes its carrying capacity and then papooses policy suggestions for improving its carrying capacity.
基金Supported by Key Science Research Project for Henan Higher School,China(15A610012)Key Project of Humanity and Social Science,Henan Education Department,China(2015-ZD-029)Doctor Foundation Project of Henan Polytechnic University,China(B2012-008)
文摘Abstract The level of emergency ability directly reflects response effect of an area to emergency. Taking Central Plains Economic Zone as re- search object, by documents retrieval, field survey, mechanism analysis and logical reasoning, evaluation index system for emergency ability of ag- ricultural environmental pollution incident was established, which included 5 first grade indexes, 19 second grade indexes and 53 third grade inde- xes. By mechanism analysis and mathematical derivation, evaluation model for emergency ability of agricultural environmental pollution incident： I =m∑i=1∑j=1Pij, On this basis, four prefecture-level cities （A, B, C and D） of Central Plains Economic Zone were evaluated by using the index system and the evaluated model. The research could provide important theoretical reference for emergency ability construction of agricultural environmental pol- lution incident in Central Plains Economic Zone.
基金Supported by Project of National Social Science Fund,China(10BJY090)
文摘Based on analyzing and summarizing the previous research results,the existing problems in the researches of tourism resources development in the ecological economic zone of Poyang Lake were analyzed. And then the research trend in the future was pointed out.
文摘This paper elaborated the bidding scheme design of the Central Recreational Area in Linkong Economic Zone from the perspectives of site analysis, determination of properties, design theme and principle, scheme layout and conception, in order to explore the potential enlightenments of the scheme design process, and disclose significance of site analysis and its close relationship with the scheme design.
文摘1. Name of development areas and industrial sections: Tianjin Economic and Technological Development Area Location: Tonggu Area (state class) Planned area (sq.km): 33 Developed Area: 19 Key industries to be developed: Electronics, machinery and electrical, light industry, refined chemical, foodstuffs, new type building materials, new technology development Add: No. 1, First Avenue, Tianjin Economic and technological Development
文摘Inward foreign direct investment （FDI） is expected to grow further by virtue of economic globalization. A thorough understanding of the locational determinants of inward FDI will be conducive to enhanced efficiency in attracting direct and SOC-related investments from foreign entities. This study analyzes 51 cases of inward direct foreign investment made in the Incheon free economic zone （IFEZ） from 2002 to 2009 to determine the factors influencing FDI volume, the relevance of locations and the correlation between investment size and location. First, the relationship between the loeational determinants of FDI and the total investment size （total expected project cost） is analyzed. Second, the relationship between the locational determinants of FDI and the FDI is analyzed. Third, the relationship between the locational determinants of FDI and the location choice is analyzed. The results indicate the determinants that influence locations and investment size of FDI entities; whether these factors exercise influence in the zone; and the factors that have relatively significant effects. Ultimately, based on the analytical findings, a few implications for policy and practice are derived.
