2000年-2020年中国西南地区生态系统服务价值研究

Study on Value of Ecosystem Services in Southwest China from 2000 to 2020

文章采择经多因子修正后的单位面积生态系统服务价值当量因子,对中国西南地区2000年—2020年5个时期的9种生态系统服务进行价值估算。结果表明:西南地区土地利用类型主要是林地和草地,总服务价值量分别为44766×10^(8)、44756×10^(8)、42861×10^(8)、46519×10^(8)和45632×10^(8)元,呈先降后升态势。就生态系统类型而言,林地价值最高;就生态系统服务类别而言,水文调节最高;2000年—2020年,西南地区生态系统服务价值自西向东递增,随着生态保育规程的传扬和广众治污养护思潮的增益,生态地物水准得到改进,情势得以向好。

In this paper,the value equivalent factor of ecosystem services per unit area,modified by multiple factors,was used to es‐timate the value of 9 ecosystem services in 5 periods from 2000 to 2020 in southwest China.The results show that the main types of land use are forest and grassland.The total ESV from 2000 to 2020 were showing a trend of first decline and then increase.In terms of ecosystem types,forest has the highest.In terms of ES categories,hydrological regulation is the highest.ESV has been increasing from west to east,and with the implementation of ecological protection policies and people's awareness,the quality of the ecological environment and the ecological situation has been improved.