Ecosystem Restoration Study on Watershed Based on the Method of Ecosystem Function Evaluation

This study used 1:2 000 LUCC map including the year of 1983,1990,1997 and 2002 and other data including climate data,bio-mass and agricultural statistics data.The assessment standard was referenced from Costanzia.The study also used ArcGIS and Matlab software to analyze spatial data.By these data and technic,the result of the ecosystem service function value of year 1983 and 2002 was finally achieved.After these data's analysis,the conclusion was drawn that the ecosystem service function has been largely improved by comparing the value of year 1983 and year 2002.Seven ecosystem functions of three main ecosystem types(forest,cropland,water) have changed obviously.The standard of living of local citizens has been largely improved.