四川白沙河流域生态经济系统可持续性能值分析

利用能值分析的方法,通过建立指标对2002～2006年四川白沙河流域的社会、经济和自然系统进行定量分析,并与新疆玛纳斯河流域以及四川省进行比较,从而评估白沙河流域的可持续发展情况,为白沙河流域今后的开发利用提供参考。结果表明:从经济系统能值投入的角度看,白沙河流域是典型的资源丰富待开发型生态经济区;从自然条件开发和生态资源利用的角度看,白沙河流域资源利用强度较弱,环境负荷率较低,能值产出水平有待提高;白沙河流域系统具有较强的可持续发展能力和较好的发展潜力。

Energy Analysis of Sustainability of Eco-economic System in Sichuan Baisha River Valley

Using emergy analysis method,I conduct quantitative analysis of social,economic and natural systems in Sichuan’s Baisha River valley during the period 2002-2006,through the establishment of indicators.I compare the emergy of Baisha River valley,with that of Xinjiang’s Manas River valley and Sichuan Province,and evaluate the sustainable development conditions in Baisha River valley,in order to provide corresponding reference for the development and utilization of Baisha River valley in the future.The results show that from the perspective of emergy input of economic system,Baisha River valley is a typical ecological and economic zone with rich resources to be developed;in terms of the development of natural conditions and utilization of ecological resources,the resource utilization intensity of Baisha River valley is weak and the environmental loading rate there is low,thus the level of emergy output needs to be improved;the system of Baisha River valley has enormous capacity for sustainable development and good potential for development.