黄河中上游流域生态综合评价研究

选择黄河中上游流域72.31万km2为研究区,通过遥感信息提取、常规资料分析和野外调查研究,将研究区分为青藏高原东北部生态区、鄂尔多斯高原-河套平原生态区、黄土高原生态区和24个生态亚区.在此基础上,选择指标因子,建立数学模型,利用ArcInfo系统对黄河中上游流域生态质量进行了定量综合评价和分析,实现了大区域生态质量的定量评价和质量的可比性.

Synthetical Evaluation Research of Ecological Environment in Middle and Upper Reach of Yellow River Drainage Basin

Taking middle and upper reach of Yellow River drainage basin as research area,this paper divides it into three ecotopes and twenty-four ecosystem subregions by remote sensing information extraction,traditional information analysis and field investigations.The ecotopes include north-eastern Qinghai-Tibet plateau ecotope,Ordos plateau-Hetao plain ecotope and Loess Plateau ecotope.On the basis of ecotope partition,quantitative evaluation and analysis of ecological quality in middle and upper reach of Yellow River drainage basin was carried out by selecting environmental indices and mathematical modeling in Arcinfo system,quantitative evaluation of ecological quality in large areas was implemented.The research could provide scientific foundations for the Yellow River drainage area ecosystem environmental management.