山区可更新资源与经济发展的空间耦合分析——以浙江省安吉小流域为例

围绕自然资源与经济发展相互关系这一主题,选取浙江省安吉县小流域为研究区域,探讨了山区小流域可更新资源与经济发展之间的空间耦合关系。参照高程变化,以每100m高程间隔为单元,以安吉县相关统计资料和实地调查资料为基础数据,计算各高程段各类可更新资源的GDP产出,进而计算实现经济转化的资源价值量TRV,再计算TRV占资源价值的比例、TRV占GDP的比例。研究表明,随地势升高,各高程段总体TRV与资源价值的比值降低,说明可更新资源的开发程度越来越低;总体TRV与GDP的比值呈增加趋势,经济发展对本土资源的依赖性增加。整个小流域经济产出利用了本土可更新资源总价值的15%,本土可更新资源实现经济转化的那部分资源价值贡献了GDP总量的12%。

Spatial Analysis of the Coupling between Renewable Resources and Economy in Mountain Region -A Case Study in Anji Small Watershed of Zhejiang Province

This research focuses on the coupling relationships between natural resources and eco,nomy in mountainous regions.The coupling between natural resources and economy varies from urban to rural areas.In urban areas,the economy depends much more on foreign and other resources than local natural resources.Contrary to the urban,the economy depends much more on local natural resources than foreign and other resources.Renewable resources are the basic natural resources to sustainable development.Spatial analysis of coupling relationship between renewable resources and economy in mountain region is very important for us to study the status quo of sustainable development of that area.The research is carried out in Anji small watershed of Zhejiang province.Heights are the main factors that lead to differences in mountain regions.From the sea level to the peak,according to height difference of every 100m,we divide the whole small watershed into different spatial units.In Anji small watershed,renewable resources include bamboo forest,broad,leaved forest,conifer forest,mixed forest,shrubbery,garden plots,farmlands,water areas and residential areas.With statistical data and field surveys,we can calculate GDP of all kinds of land covers in every spatial unit.Subtracting the cost from GDP,we can work out how much of resource valuations of every kind of land cover have been transformed into money(TRV) in different spatial units.And then,we can calculate the ratio between the TRV and the resource valuations and the ratio between TRV and GDP in every spatial unit.The results indicate that,with heights decreasing,more and more renewable resources are exploited and GDP increases;the exploited degrees of garden plots and farmlands are higher than other land covers;the GDP of garden plots and farmlands is less dependent on their own renewable resources;about 96.4% of GDP of residential areas are produced by labour forces and other resources except for local renewable resources;with heights increasing,the ratio between TRV and resource valuations decreases,however,the ratio between TRV and GDP increases.Conclusions can be drawn that with heights decreasing,more and more renewable resources are exploited,and on the other hand,economy becomes less and less dependent on renewable resources.About 15% of renewable resource valuations has been exploited and 12% of GDP is contributed by renewable resource in the whole small watershed.