基于修正模型的矿-农-城复合区生态服务价值研究:以山西省平朔为例

    Ecosystem services value study of mine-agriculture-urban composite area based on fixed model: a case study of Pingshuo mine area

    • 摘要: 在露天煤矿开采、高速城镇化和土地复垦的三重影响下,矿-农-城复合区的土地利用类型和生态系统服务价值都发生着变化。本文以山西省平朔矿区及其周边城区为研究对象,以1986年、1996年、2004年和2013年的遥感影像等数据为基础,针对研究区的特征,对原有生态系统服务价值当量表进行了修正,并根据修正后的当量表进行生态系统服务价值的测算。结果表明:土地复垦虽然对生态系统的恢复有所助益,但煤炭开采和城镇化进程对原地貌生态系统的影响仍较大,使其退化严重。1986~2013年,研究区生态系统服务总价值由45637.94万元下降到21410.72万元,下降率达53.09%。各单项生态系统服务中,以废物处理变化幅度最大,从5172.22下降为-4706.47万元,变化率达到-191.00%,即生态系统所能提供的废物处理服务,已不能仅依靠自然净化废弃物,还需要人工处理。

       

      Abstract: The open coal mining,rapid urbanization and land reclamation change the complex land use and ecosystem services value of mine-agriculture-urban composite area.This paper takes the Pingshuo mining area and the surrounding urban area as the research area,based on the remote sensing image dataof 1986,1996,2004 and 2013,Shuozhou statistic yearbook data and Shanxi Province environmental quality statement,fixes the original ecosystem services value equivalent table,and estimates the ecosystem service value of the research area.Results show that although land reclamation is benefit for ecosystem restoration,the coal mining and urbanization have greater negative influence on the original ecosystem,causing serious degradation.From 1986 to 2013,the total value of ecosystem service drops from 456.38 to 214.11 million yuan with the decline rate of 53.09%.In individual ecosystem service,the value of waste treatment drops from 51.72 to -47.06 million yuan with the rate of -191.00%;in other words,the economic losses of ecology caused by coal mining and urbanization have already exceeded the maximum service value of waste treatment the ecosystem can provide.

       

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