Evolution of coordination degree of eco-economic system and early-warning in the Yangtze River Delta
Evolution of coordination degree of eco-economic system and early-warning in the Yangtze River Delta作者机构:Institute of Geographic Sciences and Natural Resources Research CAS Beijing 100101 China College of Urban and Environmental Sciences Central China Normal University Wuhan 430079 China
出 版 物:《Journal of Geographical Sciences》 (地理学报(英文版))
年 卷 期:2013年第23卷第1期
页 面:147-162页
核心收录:
学科分类:083002[工学-环境工程] 02[经济学] 0202[经济学-应用经济学] 0830[工学-环境科学与工程(可授工学、理学、农学学位)] 081802[工学-地球探测与信息技术] 08[工学] 020202[经济学-区域经济学] 0818[工学-地质资源与地质工程] 081602[工学-摄影测量与遥感] 0816[工学-测绘科学与技术]
基 金:National Youth Science Foundation, No.40971101 The Major Project of Science and Technology Research for the 1 lth Five-Year Plan of China, No.2006BAJ05A06
主 题:Yangtze River Delta rapid urbanization region LUCC eco-service value eco-economic coordination early-warning
摘 要:On the basis of Landsat TM data of the Yangtze River Delta (YRD) Economic Zone in 1991, 2001 and 2008, this article, taking 90 counties in this region as study units, built spatial data transformation models, ecosystem service value (ESV) and coordination degree of eco-economic system (CDES) models. With the aid of ArcGIS9.3, mass grid and vector data has been processed for spatial analyses. ESV and CDES indexes have demonstrated the relationship between economic development and eco-environment system and its evolu- tion characteristics in the researched areas. Furthermore, the indexes have also been used for functional zoning and pattern recognition. Some results can be shown as follows. Firstly, since 1991, land use in the YRD has greatly changed: urban land area has increased primar- ily from original paddy land, dry land, grassland, garden plot and other land. Secondly, the ESV model has proved the deterioration trend of the YRD ecological system from 1991 to 2001 and slower degradation trend during 2001-2008. Also, it is illustrated that land-use conversion from water area and paddy field to urban area and dry land could cause great damage to ecosystem stabilization. Thirdly, GDP in the central and southern parts of the YRD is higher than that in the northern part since 1991. GDP growth rate in the central part is higher than that in the northern part during 1991-2001. This growth rate in the central part is also higher than that in the southern and northern parts of the YRD from 2001 to 2008. Fourthly, the YRD could be categorized into 12 types of subregions in terms of CDES index. According to its spatial characteristic of CDES index value in the study area, eco-economic conflict area with low CDES value which is located in the central part is surrounded by eco-coordinated areas with high CDES values. This illustrates a core-periphery spatial structure exists in the YRD. During 1991-2001, the CDES value implied the convergent de- terioration trend of eco-econ