The study on land use/cover change and ecological environmental effect in Pingshuo surface mine

摘要

The aim of this study is 1)to estimate the land use /cover changes from 1987 to 2005 based on three LANDSAT TM images;2) to calculate the Ecosystem services value of Pingshuo Mine with the method of published by Costanza et al.. The results show that: During the year of 1987 to 2005, the arable land decrease is from 20816 hm2 to 18774.97 hm2, which declined more sharply than other land use types; the forest land and water declined 2124.19 hm2 and 72.83 hm2 respectively. Widespread build-up expansion took place in the study area, it increased by 4031.66hm2. According to our estimates, the total annual ecosystem service values in Pingshuo mine have declined by about RMB 29.38 million between 1987 and 2005. Comparing other land classification, there is a significant drop in ecosystem service value of forest land, which decreased from RMB 52.71 million in 1987 to RMB 39.36 million in 2005.The value of arable land declined by RMB 5.74 million, less than that of forest land. The ecosystem of water was severely disturbed which value drop from RMB 5.54 million in 1987 to RMB −9.57 million in 2005