摘要
通过构建和运用修正的数量和空间分析模型,揭示长江中游经济带土地利用转型空间格局及地域类型;运用生态系统服务价值评估法和空间自相关分析法,分析长江中游经济带生态服务价值损益并探测其冷热点。结果表明:(1)2000—2010年,土地利用转型显著,农田转移面积和份额最大,变化速度最快,建设用地新增面积和份额最大,新增速度最快。(2)2000—2010年,生态系统服务价值不断降低且减少速率不断增加,后5年的减少量远大于前5年。其中,森林、农田和水域对生态服务价值的贡献最大。(3)Moran's I指数值为正且呈现上升趋势,生态服务价值冷热点呈"E"状集聚分布。(4)2000—2005年,生态服务价值增长的热点与减少的冷点呈斑块状分布;2005—2010年呈"Y"状分布。应按照区域资源禀赋条件、生态环境容量和主体功能定位,促进土地利用方式创新,更好推进长江经济带生态文明建设。
This paper reveals the spatio-temporal pattern and land use transition types by using quantitative and spatial analysis models. Analyzing the changes of ecosystem services value and detecting the hot and cold point by using the ecosystem service value assessment method and spatial autocorrelation analysis of the middle of the Yangtze River Economic Belt. The results show：（l）During 2000-2010, land use transition was very significant in the middle of the Yangtze River Economic Belt, the transferred area, share and speed of farmland was the largest, while the increase speed, area and share of construction land was the largest. （2）During 2000-2010, the ecosystem service value of the middle of the Yangtze River Economic Belt was decreasing and its rate was increasing. The reduction amount of the latter five years was much larger than that of the previous five years. Among them, forest, farmland and water area contributed the most to the ecosystem services value. （3）The index of Moran＇s I showed an overall upward trend, indicating that high and low value areas of ecological service showed a concentration distribution in the middle of the Yangtze River Economic Belt on the county level. （4）The hot spots and cold spots of ecosystem services value in the middle of the Yangtze River Economic Belt showed an E like distribution. During 2000-2005, the hot spots of ecological service value increased and the cold spot area of ecological service value decreased showed a patchy distribution, while 2005-2010 showed a Y like distribution. It should be in accordance with the regional resources endowment conditions, the ecological environment capacity and the main function positioning in order to promote the innovation of land use and the construction of ecological civilization of the Yangtze River Economic Belt.
出处
《经济地理》
CSSCI
CSCD
北大核心
2017年第11期161-170,共10页
Economic Geography
基金
国土资源部公益性行业科研专项(201511004)
关键词
土地利用转型
生态服务功能
时空格局
长江中游经济带
land use transition
ecosystem service function
spatio-temporal pattern
the Middle of Yangtze River Economic Belt
