Estimation on gains and losses of ecosystem service values based on land use/coverage change:a case of Daqing City

The application of remote sensing technology to the study of land-use/coverage change show that there were severe variations in aspect of land use in Daqing City since 1988,which brought on a series of responses of regional eco-environment and the variation of its ecosystem service values. Based on the data of Landsat TM for the Daqing City in 1988 and 2001,this paper analyzed changes in land use and ecosystem service values using Costanza's method of evaluating the global ecosystem service values.The results indicate that the ecosystem service values of Daqing(City) have been diminished due to the land use change in 13 years.The loss of ecosystem service values has reached 20.76%~24.01%.