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Spatiotemporal pattern of climate change in the China-Myanmar Economic Corridor from 1901 to 2018
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作者 YANG Xiaoliu LI Yungang GAO Lu 《Journal of Mountain Science》 SCIE CSCD 2024年第1期131-145,共15页
The China-Myanmar Economic Corridor(CMEC) is an important part of China's Belt and Road Initiative and an important area for global ecology and biodiversity. In this study, the annual and seasonal spatiotemporal p... The China-Myanmar Economic Corridor(CMEC) is an important part of China's Belt and Road Initiative and an important area for global ecology and biodiversity. In this study, the annual and seasonal spatiotemporal patterns of temperature and precipitation in the CMEC over the past century were investigated using linear tendency estimation, the Mann-Kendall mutation test, the T-test, and wavelet analysis based on the monthly mean climatic data from 1901 to 2018 released by the Climatic Research Unit(CRU) of the University of East Anglia, UK. The results show that the CMEC demonstrated a trend of warming and drying over the past 100 years, and the rate of change in Myanmar was stronger than that in Yunnan Province of China. The warming rate was 0.039 ℃/10a. Precipitation decreased at a rate of -6.1 mm/10a. From the perspective of spatial distribution, temperature was high in the central and southern, low in the north of the CMEC, and the high-temperature centers were mainly distributed in the southern plain and river valley. Precipitation decreased from west to east and from south to north of the CMEC. From the perspective of the rate of change, warming was stronger in central and northern CMEC than in southern and northeastern CMEC. The rate of precipitation decline was stronger in the central and western regions than in the eastern region. This study provides a scientific reference for the CMEC to address climate change and ensure sustainable social and economic development and ecological security. 展开更多
关键词 China-Myanmar economic Corridor CRU Air temperature PRECIPITATION Spatiotemporal pattern
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Characteristics and Functions of Cooperative Economic Organizations for Water-saving Irrigation in Agricultural Development in Arid Areas 被引量:4
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作者 吴开波 朱美玲 +1 位作者 董新光 李金 《Agricultural Science & Technology》 CAS 2011年第12期1979-1982,共4页
Agricultural cooperative economic organization for water-saving irrigation in arid areas is a new form of economic organization in production,operation and management during the application process of water-saving irr... Agricultural cooperative economic organization for water-saving irrigation in arid areas is a new form of economic organization in production,operation and management during the application process of water-saving irrigation technologies.Currently,there are few researches on this cooperative economic organization.In this study,connotations of cooperative economic organizations for water-saving irrigation are specifically defined,and the characteristics and functions of this cooperative economic organization are analyzed.Based on that,several suggestions are proposed on the continuous development of cooperative economic organizations for water-saving irrigation. 展开更多
关键词 Cooperative economic organizations water-saving irrigation CHARACTERISTICS FUNCTIONS
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Effects of Different Planting Patterns on Rice Yield and Economic Benefit 被引量:3
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作者 彭建伟 张海鹏 +3 位作者 刘强 杨艳菊 荣湘民 宋海星 《Agricultural Science & Technology》 CAS 2012年第7期1422-1424,共3页
[Objective] This study aimed to investigate the effects of cultivation methods on rice yield and economic benefits in the Dongting Lake area. [Method] A field plot experiment was conducted by adopting three different ... [Objective] This study aimed to investigate the effects of cultivation methods on rice yield and economic benefits in the Dongting Lake area. [Method] A field plot experiment was conducted by adopting three different planting patterns of artificial sowing, artificial throwing and mechanical transplanting. [Result] Rice yield of mechanical transplanting was 7.84% and 24.19% higher respectively than that of artificial sowing and artificial throwing. The effective panicles per unit area of mechanical transplanting and artificial throwing were less than that of artificial sowing. On the contrary, grains per spike, 1 000-grain weight and seed setting rate of mechanical transplanting and artificial throwing were less than those of artificial sowing. Mechanical transplanting of rice brought the highest net income 11 779.16 yuan/hm2, which was 1 697.72 and 3 631.84 yuan/hm2 higher than that of artificial throwing and artificial sowing. [Conclusion] Mechanical transplanting could promote rice productivity in Dongting Lake area, and could increase rice yields and economic returns. 展开更多
关键词 RICE YIELD Plantingpatterns:economicbenefit
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Effects of Water Stress on Economic Characters of Water-saving Rice Variety Luhan No.1
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作者 王士梅 黄艳玲 +3 位作者 朱启升 汪婉琳 张德文 杨前进 《Agricultural Science & Technology》 CAS 2011年第10期1453-1456,1460,共5页
[Objective] This study aimed at exploring the utilization rate of water of the new water-saving rice variety "Luhan No.1" and providing references and basis for the further demonstration and extension.[Method] Water... [Objective] This study aimed at exploring the utilization rate of water of the new water-saving rice variety "Luhan No.1" and providing references and basis for the further demonstration and extension.[Method] Water-saving rice variety "Luhan No.1" and original receptor "6527" were used for dry processing without aquifer,and rice under regular irrigation conditions was used as the control.[Result] Under conditions which had economized on 67.4% of water compared with the regular irrigation,decreasing rates of 1 000-seed weight,seed setting rate,plant height and effective panicles of "Luhan No.1" were relatively small and had not achieved a significant level,while the decreasing rates of production of the region,total grains per panicle,theoretical production and filled grains per panicle of the original receptor "6527" were all over 25% and had attained very significant levels(P0.01).[Conclusion] "Luhan No.1" had shown stable production,energy conservation,reducing environmental pollution and other advantages under water-conservating cultivation conditions. 展开更多
关键词 water-saving rice Luhan No.1 Water stress economic characters
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Spatiotemporal Pattern of Cultivated Land Pressure and Its Influencing Factors in the Huaihai Economic Zone, China
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作者 LI Yi FANG Bin +2 位作者 LI Yurui FENG Weilun YIN Xu 《Chinese Geographical Science》 SCIE CSCD 2023年第2期287-303,共17页
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
关键词 cultivated land pressure spatiotemporal pattern influencing factors Huaihai economic Zone China
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Economic reform, open-door policy and changes in spatial development patterns in China 被引量:1
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作者 WANG Enru1, LU Xiang-xing2 (1.Department of Geography University of Washington Smith Hall, Box 353550 Seattle, WA 98195, USA 2. Department of Geography Kansas State University Manhattan, KS 66506, USA) 《Journal of Geographical Sciences》 SCIE CSCD 2000年第4期7-19,共13页
The study profiles and explains the significant changes that have taken place in China's spatial development patterns since the inception of its economic reform and opening two decades ago. Principal component an... The study profiles and explains the significant changes that have taken place in China's spatial development patterns since the inception of its economic reform and opening two decades ago. Principal component analysis is used to delineate spatial patterns. The analyses show that prior to the reform China's spatial development pattern was characterized by the dominance of the three municipalities and the Northeast, as well as by both the coast-interior and the north-south disparities. Northern provinces were generally more industrialized and economically powerful than the southern ones. After two decades of reform, regional development has become multi-centered with South China, the Yangtze Delta and the Beijing-Tianjin area being the three most important regions of the country. The coastal provinces as a whole rose to prominence on China's economic map while the Northeast has diminished its clout. The coast-interior gap not only remains but may have widened. The north-south disparity also still exists but there has been a role reversal with the south now in the lead position. Virtually all inland provinces now find themselves at or near the low end of the development spectrum. We argue that the major reason for the recent shifts in Chinese space economy is the spatially differentiated economic growth resulted from the reform and open door policy and from the new, uneven development strategy adopted by the Chinese government. The paper discusses four specific factors that have reshaped China's spatial development patterns. 展开更多
关键词 regional development pattern differentiated growth economic reform open door policy
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Analysis of the Southern China Tilapia Production and Economic Benefits of Different Breeding Patterns in 2018
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作者 Lirong BAI Dahui YU 《Agricultural Biotechnology》 CAS 2019年第5期65-69,共5页
Cost-benefit analysis and breakeven point were used to analyze the production cost and economic benefit of tilapia pond monoculture and polyculture.From the aspects of tilapia production and economic benefit,this pape... Cost-benefit analysis and breakeven point were used to analyze the production cost and economic benefit of tilapia pond monoculture and polyculture.From the aspects of tilapia production and economic benefit,this paper summarized the current production status and the characteristics of tilapia industry development and analyzed its developing trend.The results indicated that feed cost,pond rates and labor cost are the main production costs,and the production cost of polyculture is significantly lower than that of monoculture.Through comparative analysis,it is proposed that the tilapia industry should be reasonably guided to the intensive,standardized and pollution-free direction.Specifically,it is necessary to improve the coverage of improved varieties,strengthen disease prevention and control and promote the healthy farming model of tilapia.We also should strengthen the training of tilapia production techniques and the quality and safety testing of tilapia products,and accelerate the development of tilapia industrialization,so as to promote the sustainable and healthy development of tilapia industry. 展开更多
关键词 TILAPIA BREEDING pattern PRODUCTION status economic BENEFIT Development TREND
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Economic Load Dispatch with Daily Load Patterns Using Particle Swarm Optimization 被引量:1
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作者 Nattachote Rugthaicharoenchep Somkieat Thongkeaw 《Journal of Energy and Power Engineering》 2012年第10期1718-1724,共7页
ELD (economic load dispatch) problem is one of the essential issues in power system operation. The objective of solving ELD problem is to allocate the generation output of the committed generating units. The main co... ELD (economic load dispatch) problem is one of the essential issues in power system operation. The objective of solving ELD problem is to allocate the generation output of the committed generating units. The main contribution of this work is to solve the ELD problem concerned with daily load pattern. The proposed solution technique, developed based PSO (particle swarm optimization) algorithm, is applied to search for the optimal schedule of all generations units that can supply the required load demand at minimum fuel cost while satisfying all unit and system operational constraints. The performance of the developed methodology is demonstrated by case studies in test system of six-generation units. The results obtained from the PSO are compared to those achieved from other approaches, such as QP (quadratic programming), and GA (genetic algorithm). 展开更多
关键词 economic dispatch daily load patterns particle swarm optimization.
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Geographical Patterns of Cultural Values, Entrepreneurship and Economic Development
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作者 Riste Temjanovski Tamara Jovanov Marjanova 《Journal of Earth Science and Engineering》 2015年第4期262-269,共8页
Globalization and information technologies are new realities that have brought profound changes in lifestyles worldwide. This is reshaping the overall pattern of life custom, cultural production, consumption and trade... Globalization and information technologies are new realities that have brought profound changes in lifestyles worldwide. This is reshaping the overall pattern of life custom, cultural production, consumption and trade in a world increasingly filled with changes and economic diversity. In an age of globalization, often ask questions and discussions concerning about successes and vitalities of nations. Globalization and technological revolutions race ahead and transform the world, and how to traces the real business to success. There are thousands of good examples where any nations have shown entrepreneurial talents and have succeeded. It is culture that principally explains, in many cases, or geographical pattern where some countries are developing more rapidly and more successfully than others. How to explain economic success of this nation's miracles or simple the secret is creative entrepreneurships? This paper explores the complex interactions between the geographic pattern from one side and cultural, technological and social aspects of entrepreneurship from other side which generates the dynamic processes of the world economy. In this era of transformation, creativity and knowledge entrepreneurship are powerful tools of fostering economic progress and development. 展开更多
关键词 Geographical pattern CULTURE ENTREPRENEURSHIP economic activity and development.
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Treatment Patterns and Economic Assessment of Systemic Therapy for Metastatic Colorectal Cancer
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作者 Thomas H. Cartwright Lonnie K. Wen +3 位作者 Robyn K. Harrell Patricia S. Fox Janet L. Espirito Ed Wang 《Journal of Cancer Therapy》 2016年第9期646-655,共11页
Introduction: Colorectal cancer (CRC) is the third most commonly diagnosed cancer and the third leading cause of cancer deaths in the United States. The goal of this study was to understand treatment patterns, biomark... Introduction: Colorectal cancer (CRC) is the third most commonly diagnosed cancer and the third leading cause of cancer deaths in the United States. The goal of this study was to understand treatment patterns, biomarker testing practices, treatment adherence, and the clinical and economic outcomes associated with chemotherapy for metastatic disease. Methods and Materials: We retrospectively examined electronic health records of patients with metastatic CRC who initiated chemotherapy between 01 January 2007 and 30 June 2011, with follow-up to 30 June 2012. Parameters analyzed included demographics and clinical characteristics, treatment patterns, clinical outcomes, and health care resource utilization. Results: In the analysis, 756 patients were included;median age was 61 years (55% male) at start of first line therapy. The most commonly used regimens in the first, second, and third line were FOLFOX + bevacizumab (46%), FOLFIRI + bevacizumab (23%), and irinotecan + cetuximab (23%) respectively. Adherence to guidelines decreased with increasing line of therapy. When assessed by treatment backbone categories in the third line, outcome measures including overall survival (OS), and time to treatment discontinuation (TTD) were not statistically different between groups. In the multivariable model, body mass index (BMI), performance status, and KRAS were significant predictors of survival. Conclusions: This study provides insight into patterns of care and outcomes of mCRC patients for the aforementioned time period. As treatment options for mCRC evolve, it is valuable to understand the continuum of care to help inform future treatment among candidates for continued therapy. 展开更多
关键词 Metastatic Colorectal Cancer economic Assessment Systemic Therapy Treatment patterns
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Economic Reform and Changes in Regional Development Patterns of China
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作者 Chen Yong(School of Economics of Guizhou University,Guizhou Guiyang 550000) 《商情》 2008年第2期21-22,共2页
<Abstract>The thesis profiles and explains the significant changes that have taken place in China's regional development patterns since the inception of its economic reform and opening three decades ago.The ... <Abstract>The thesis profiles and explains the significant changes that have taken place in China's regional development patterns since the inception of its economic reform and opening three decades ago.The analysis show that prior to the reform China's spatial development pattern was characterized by the dominance of the three municipalities and the Northeast,as well as by both the coast-interior and the north-south disparities.After three decades of reform,regional development has become multi-centered with South China,the Yangtze Delta and the Beijing-Tianjin area being the three most important regions of the country.The coastal provinces as a whole rose to prominence on China's economic map while the Northeast has diminished its clout.The coast-interior gap not only remains but may have widened. And especially in the latest ten years,the economic map continue changing,some provinces rose up quickly,while some declined rapidly.The paper discusses main specific factors that have reshaped China's spatial development patterns. 展开更多
关键词 REGIONAL DEVELOPMENT patterns FISCAL RIGHT DECENTRALIZATION DEVELOPMENT strategies economic REFORM comparative advantages
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Spatio-temporal Pattern Characteristics of Relationship Between Urbanization and Economic Development at County Level in China 被引量:9
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作者 YANG Zhen ZHANG Xiaolei +2 位作者 LEI Jun DUAN Zuliang LI Jiangang 《Chinese Geographical Science》 SCIE CSCD 2019年第4期553-567,共15页
The relationship between China’s urbanization and economic development(RCUED) is an important concern nationwide. As important actors in regional strategy and policy, county-level regions have played an increasingly ... The relationship between China’s urbanization and economic development(RCUED) is an important concern nationwide. As important actors in regional strategy and policy, county-level regions have played an increasingly significant role in the development of China’s social economy. However, the existing research on the RCUED lacks the fine depiction of the county-level administrative units.Using 2000 and 2010 census data and the statistical analysis method, we uncovered the evolution characteristics of China’s urbanization and economic development and conducted a quantitative identification for the RCUED with improved methods using the quadrant map approach. In addition, we investigated the spatial correlation effect of the RCUED using the spatial autocorrelation analysis method. The results were as follows: 1) In general, a high degree of matching exists between China’s urbanization and economic development at the county level at the significance level of 0.01. The correlation coefficients between China’s urbanization and economic development in2000 and 2010 were 0.608 and 0.603, respectively. 2) A significant regional difference exists in the RCUED at the county level. Based on a comparative analysis of 2276 county units in China in the two years, we found that county units can be categorized as under-urbanized, basic coordination and over-urbanized in various areas. No situation was observed where urbanization seriously lagged behind the economic development level, so the levels of urbanization and economic development appear to be basically coordinated,and the coordination state may be gradually optimized over time. 3) Over time, the spatial dependency of the RCUED has weakened and the spatial heterogeneity has increased. Northeast China has always been an area characterized by over-urbanization. The number of county units classified as under-urbanized has begun to decline in eastern coastal urban agglomeration areas, while counties rich in resources have transformed from having point-shaped over-urbanization to plane-shaped under-urbanization along the northern border,and the number of over-urbanized county units has increased in the middle reaches of the Yangtze River. 4)’Lag-lag’ type and ’advance-advance’ type accounted for 68% of all counties in China, and these counties were shown to have obvious spatial differentiation characteristics. 展开更多
关键词 URBANIZATION economic development RELATIONSHIP spatial-temporal pattern COUNTY China
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Characterization of landscape pattern based on land economic niche change: A case study in Ganzhou,Gansu Province, China 被引量:2
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作者 Hua Li Tong Pei Ji Shi +1 位作者 Xue Bin Zhang Zai Yan Li 《Research in Cold and Arid Regions》 CSCD 2018年第3期261-270,共10页
Land use change has a profound impact on biodiversity and ecological processes, and is closely related to changes in landscape patterns. This paper introduces the theory and method of land economic niche into landscap... Land use change has a profound impact on biodiversity and ecological processes, and is closely related to changes in landscape patterns. This paper introduces the theory and method of land economic niche into landscape ecology, which provides a new method for spatial characterization of urban and rural spatial landscape patterns. Based on this theory, this paper analyzes the landscape pattern of Ganzhou District by using Landsat images as data source in 1995, 2000, 2005, 2010 and 2015. We calculated the land economic niche by applying the niche potential theory. Combined with the theory of landscape ecology, we explored the effects of the land economic niche change on the landscape pattern at a county scale. The results show that economic niche of construction land, watershed and farmland increased during 1995-2015, and grassland declined significantly. The economic niche of farmland, construction land, watershed and grassland show a negative correlation with the number of patches (NP), fragmentation index (FN) and the fractal dimension index (FD), and had a positive correlation with the aggregation index (AI). There was no significant correlation between the forest land economic niche and landscape metrics. The change of land economic niche has a driving effect on the landscape pattern of the county, which can represent the economic development direction of Ganzhou District. The land economic niche is closely related to the landscape type which can directly obtain an economic benefit. 展开更多
关键词 land economic niche landscape metrics landscape pattern CHARACTERIZATION
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Correlation Between Economic Development Level and Landscape Pattern in Beijing Peri-urban Areas 被引量:2
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作者 Ji Xiaomei Chen Tian 《Chinese Journal of Population,Resources and Environment》 2010年第3期3-10,共8页
With the rapid changes of demographic and socio-economic structure, various ecological and environmental problems have emerged in peri-urban areas. Studies on the correlation between socio-economic development and eco... With the rapid changes of demographic and socio-economic structure, various ecological and environmental problems have emerged in peri-urban areas. Studies on the correlation between socio-economic development and eco-environmental preservation are inadequate. This paper analyzes the landscape pattern of peri-urban areas to address this issue. First, it studies the differentiation of economic development levels in Beijing peri-urban areas. Then, it explores the correlation between economic development level of each town and its landscape pattern using Pearson Correlation and grade difference indices. Furthermore, it summarizes the problems within current landscape pattern. Three conclusions are drawn from the analysis: (1) on the whole, the economic de- velopment level in Beijing peri-urban areas basically matches with landscape pattern; (2) landscape contagion degree decreases with the growth of economic development level in as much as 30% of Beijing peri-urban areas. This is an irrational phenomenon accord- ing to our judgment; (3) landscape fragmentation grades in more than half of the towns are higher than their economic development grades, suggesting that attention should be paid to excessive fragmentation of land use. 展开更多
关键词 CORRELATION economic development level landscape pattern peri-urban areas BEIJING
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Industrial Green Spatial Pattern Evolution of Yangtze River Economic Belt in China 被引量:3
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作者 LI Lin LIU Ying 《Chinese Geographical Science》 SCIE CSCD 2017年第4期660-672,共13页
We use the directional slacks-based measure of efficiency and inverse distance weighting method to analyze the spatial pattern evolution of the industrial green total factor productivity of 108 cities in the Yangtze R... We use the directional slacks-based measure of efficiency and inverse distance weighting method to analyze the spatial pattern evolution of the industrial green total factor productivity of 108 cities in the Yangtze River Economic Belt in 2003–2013.Results show that both the subprime mortgage crisis and ‘the new normal' had significant negative effects on productivity growth,leading to the different spatial patterns between 2003–2008 and 2009–2013.Before 2008,green poles had gathered around some capital cities and formed a tripartite pattern,which was a typical core-periphery pattern.Due to a combination of the polarization and the diffusion effects,capital cities became the growth poles and ‘core' regions,while surrounding areas became the ‘periphery'.This was mainly caused by the innate advantage of capital cities and ‘the rise of central China' strategy.After 2008,the tripartite pattern changed to a multi-poles pattern where green poles continuously and densely spread in the midstream and downstream areas.This is due to the regional difference in the leading effect of green poles.The leading effect of green poles in midstream and downstream areas has changed from polarization to diffusion,while the polarization effect still leads in the upstream area. 展开更多
关键词 Yangtze River economic Belt industrial green total factor productivity directional slacks-based measure of efficiency inverse distance weighting spatial pattern evolution
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The Key Driver of China’s New Economic Development Pattern:A Major Power’s Flying Geese Paradigm 被引量:1
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作者 Su Qingyi Wang Fenglong 《China Economist》 2021年第5期104-131,共28页
This paper examines China’s flying geese paradigm that serves as a key driver of a new pattern of the country’s economic development.Our results suggest that such a major power’s flying geese paradigm has taken sha... This paper examines China’s flying geese paradigm that serves as a key driver of a new pattern of the country’s economic development.Our results suggest that such a major power’s flying geese paradigm has taken shape in the aftermath of the global financial crisis in 2008.However,this paradigm has provincial heterogeneity in that industrial relocation varies across provinces.For instance,China’s central and western regions have shown differences while serving as destinations for labor-intensive industries and processing trade.This flying geese paradigm evolves in a slow and nonlinear manner,and may be subject to stagnation and even reversal. 展开更多
关键词 new economic development pattern flying geese paradigm industrial relocation labor-intensive industries processing trade
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Spatial Pattern Evolution and Industrial Characteristics of Economic and Technological Development Zones and High-tech Industrial Zones in China 被引量:1
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作者 LI Jingxian LIU Qing LI Guicai 《Journal of Landscape Research》 2021年第2期11-16,共6页
Economic and technological development zone and high-tech industrial zone are important types of development zone in China,and there are differences in their connotation and goal setting.In this paper,basic data of na... Economic and technological development zone and high-tech industrial zone are important types of development zone in China,and there are differences in their connotation and goal setting.In this paper,basic data of national and provincial economic and technological development zones and high-tech industrial zones in China were collected and arranged.Kernel density analysis and other GIS spatial analysis techniques were used to analyze the evolution laws of spatial patterns of economic and technological development zones and high-tech industrial zones in cities from 2006 to 2018.First,the agglomeration intensity was compared by measuring the degree of regional agglomeration and dispersion on the two time nodes.Next,kernel density method was used to explore the evolution of the two in the spatial layout and location,and analyze development commonness and difference of economic and technological development zones and high-tech industrial zones.Finally,the trend and reason of spatial evolution of development zones with different leading industries were explored.Research results show that:①the agglomeration degree of layout of high-tech industrial zones is stronger than that of economic and technological development zones,and there are similarities and differences in distribution trend of spatial patterns of the two types of development zones;②the distribution of labor-intensive,capital-intensive and technology-intensive development zones is concentrated at smaller scales and dispersed at larger ones;③although there are differences between the economic and technological development zones and the high-tech industrial zones in the goal,support,structure and function,management system and so on,their spatial development presents a trend of convergence.In the future,when enhancing urban-rural planning and public administration,governments should combine the trend of industrial transformation and upgrading,and optimize spatial layout of development zones by adjusting industrial structure,layout,transportation and land use. 展开更多
关键词 economic and technological development zone High-tech industrial zone Spatial pattern
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Patterns, processes, and differentiation mechanisms of China's transition from old to new economic drivers
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作者 YAN Mingtao ZHAO Jianji YAN Mingyue 《Journal of Geographical Sciences》 SCIE CSCD 2024年第9期1697-1718,共22页
Transition from old to new economic drivers(TONED) is of great significance for optimizing economic structures. Using a combination of methods including entropy weight technique for order preference by similarity to i... Transition from old to new economic drivers(TONED) is of great significance for optimizing economic structures. Using a combination of methods including entropy weight technique for order preference by similarity to ideal solution, geospatial analysis, and optimal parameter geodetector, this study investigates the patterns and mechanisms of China's TONED in the prefecture-level cities from 2011 to 2020. The findings reveal that(1) the TONED exhibited a spatial distribution characterized by higher levels in the east and lower levels in the west, along with a pyramidal hierarchy of levels. The distribution of hot and cold spots roughly followed the Heihe-Yulin line.(2) The informatization levels, openness to the outside world, and urbanization played a dominant role in the TONED. The types of dual-factor interactions exhibited both dual-factor enhancement and non-linear enhancement effects.(3) The eastern and central regions were more likely to promote the TONED through enhanced informatization levels, whereas the western region relied more on increasing openness. This study finds that the TONED results from the combined effects of three geographical natures, each playing a distinct role. The recommendations provided can serve as a reference for China and other developing countries to implement the TONED in the context of deglobalization. 展开更多
关键词 transition from old to new economic drivers pattern evolution differentiation mechanism geographical nature China
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Optimization of water-urban-agricultural-ecological land use pattern:A case study of Guanzhong Basin in the southern Loess Plateau of Shaanxi Province,China
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作者 Sai Wang Bin Wu +6 位作者 Hai-xue Li Min-min Zhao Lei Yuan Xi Wu Tao Ma Fu-cheng Li Shuang-bao Han 《China Geology》 CAS CSCD 2024年第3期480-493,共14页
Extensive land use will cause many environmental problems.It is an urgent task to improve land use efficiency and optimize land use patterns.In recent years,due to the flow decrease,the Guanzhong Basin in Shaanxi Prov... Extensive land use will cause many environmental problems.It is an urgent task to improve land use efficiency and optimize land use patterns.In recent years,due to the flow decrease,the Guanzhong Basin in Shaanxi Province is confronted with the problem of insufficient water resources reserve.Based on the Coupled Ground-Water and Surface-Water Flow Model(GSFLOW),this paper evaluates the response of water resources in the basin to changes in land use patterns,optimizes the land use pattern,improves the ecological and economic benefits,and the efficiency of various spatial development,providing a reference for ecological protection and high-quality development of the Yellow River Basin.The research shows that the land use pattern in the Guanzhong Basin should be further optimized.Under the condition of considering ecological and economic development,the percentage change of the optimum area of farmland,forest,grassland,water area,and urban area compared with the current land use area ratio is+2.3,+2.4,-6.1,+0.2,and+1.6,respectively.The economic and ecological value of land increases by14.1%and 3.1%,respectively,and the number of water resources can increase by 2.5%. 展开更多
关键词 Coupled Ground-Water and Surface-Water Flow Model(GSFLOW) Land use patterns Water resources optimization Ecological and economic benefits Coupling model Hydrological environmental engineering Guanzhong Basin Southern Loess Plateau Yellow River basin
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Dual Structure—Economic Development Pattern of Chinese Mining Industry
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《Journal of Earth Science》 SCIE CAS CSCD 2000年第2期102-103,共2页
关键词 Dual Structure economic Development pattern of Chinese Mining Industry
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