青海省因草地生态破坏造成土壤流失的经济损失核算

Economic cost of soil erosion from grassland degradation in Qinghai Province

基于核算生态破坏经济损失的需要,提出了草地生态破坏经济损失的概念,并在草地覆盖率生态遥感测量的基础上,建立了草地土壤流失经济损失的综合估算方法.利用该方法对2006年青海省草地土壤流失经济损失进行了估算.结果表明,青海省2006年草地土壤流失造成的经济损失为185.2亿元,平均4.59万元/km2.

The concept of economic cost of grassland degradation in response to the need of calculating the economic cost due to ecological damage by the System of Integrated Environmental and Economic Accounting was proposed and the comprehensive estimation method for the economic cost of grassland soil erosion was established. This method took grassland coverage rate as an important ecological parameter, which was computed based on remote sensing data. A case study on Qinghai Province showed that the economic cost of grassland soil erosion in 2006 in Qinghai Province was 18.52 billion Yuan and average value was 45900Yuan/km^2.