兖州矿区土地利用变化对生态系统服务价值的影响

Effects of land use changes on ecosystem services value in Yanzhou mining area

基于遥感和GIS技术反演并分析兖州矿区1994—2013年间的土地利用变化,运用生态系统服务价值(ESV)理论评估矿区生态服务价值变化,同时根据土地利用结构分析土地利用变化引起的生态服务系统价值变化及其驱动因素。结果显示:1994—2013年间研究区内水域面积年增长率最高,达10.31%;其次为建设用地和林地,分别为8.46%、3.06%;耕地以-1.85%的年变化率减少,主要转化为水域和建设用地。生态系统服务价值评估表明,研究区域总价值上升了2.03亿元,主要原因在于林地的转入和采煤塌陷造成的耕地向水域的转化。由于耕地的减少,食物生产功能价值下降,但与湿地相关的其他各项功能价值均上升。研究结果可为矿区采煤塌陷湿地治理提供参考依据。

In this study, the land use changes during 1994--2013 in Yanzhou mining area were inversed and analyzed based on the remote sensing （RS） and geographic information system （GIS） technology. The theory of ecosystem service value （ESV） was used to evaluate the change of ecosystem services value in mining area. Meanwhile, according to the land use structure, the change of ecosystem service value and its driving factors were analyzed. The results showed that in the study area during 1994--2013, the annual growth rate of the water area was the highest, up to 10.31%, followed by the construction land and the woodland, which were 8.46% and 3.06% respectively. The annual change rate of cultivated land decreased by -1.85%, which was transformed into water and construction land. The ecosystem service value assessment showed that the total value of the study region increased by 203 million yuan, mainly due to the transfer of woodland and the transformation from cultivated land to water area caused by coal mining subsidence. Due to the reduction of cultivated land, the value of food production function decreased, while the value of other functions related to the wetland all increased. The results of this research can provide reference for the treatment of the coal mining subsidence wetland in mining area.