Currently,research on the value of ecosystem services mainly focuses on natural ecosystems such as for-ests,grasslands,and wetlands,with little attention paid to the issue of the service value of ice and snow ecosystems.Based on MODIS,statistical data and meteorological station data,and based on the functional quantity method,an ice and snow service system based on three first-level services and eight second-level services was established to account for the value of supply services,regulation services and cultural services of China's ice and snow ecosystems.The results show that the total value of ice and snow ecosystems in China was 8 120 793 million yuan,of which 1 131 441 million yuan was in Northeast China,1 702 052 million yuan in North China,3 103 050 million yuan in Northwest China,and 2 184 250 million yuan in Southwest China,accounting for 13.93%,21.11%,38.22%,and 26.74%of the total value,respective-ly.From the perspective of the comparison of the service value of ice and snow ecosystems,the order is sorted as climate regulation>regulation of runoff>cultural service>supply service>farmland drought prevention>soil entropy>air hu-midification>air purification.
关键词
中国/冰雪/生态系统服务/服务价值/评价/功能量法
Key words
China/ice and snow/ecosystem service/service value/evaluation/functional quantity method
维普
万方数据