区域生态服务价值时空异质性研究——以铜川市城郊区为例

Heterogeneity in regional spatio-temporal scale of the ecological service value—A case in the city zone and the suburb of Tongchuang Prefecture

以国内外众多关于生态服务价值研究成果为基础,利用研究区近10年地形、气候、土壤、植被和土地利用变化数据,运用生态服务价值测算模型,在GIS的支持下尝试性地研究了区域不同时段生态服务价值的时空异质性、各自然要素和人类活动对生态服务价值的影响,结果表明:(1)由于各自然要素和土地利用的共同影响,近10年铜川市城郊区生态服务价值年际间变化很大,最大年份达到了15．91亿元,最小年份为5．10亿元。(2)在假定其他要素不变的情况下,LUCC对生态服务价值的变化的影响是积极的,近10年土地利用变化有利于该区生态环境质量的提高。(3)研究区生态服务价值存在空间上的差异性:不同生态系统单位面积生态服务价值不同,同一生态系统又存在内部差异。

This paper tentatively studies the heterogeneity of the ecological service value in the spatio-temporal scale of the study area and the influence from the physical factors and the human beingg action, basing on the multiple research results of the ecological service value from the domestic and abroad, using the models of calculating the ecological service value, taking advantage of the data of topographty, climate, soil, vegetation and land using and covering. The results indicate： （ 1 ） The change of ecological service value among years is obvious because of the influence from the change of the various physical factors and the land using and covering, the maximum is ￥ 1 591 000 000 and the minimum is ￥510 000 000. （2） Supposing the other physical factors invariable, the influence on the ecological service value from the LUCC is positive and the LUCC is advantageous to the improvement of the quality of the enviromnent in this region. （3） Heterogeneity in the space also exists： the ecological service value per area being different among different ecosystems.