Evaluation on Farmland Ecosystem Service Value in Wuma River Watershed
The spatial distribution of farmland in Wuma River Watershed is obtained by using domestic GF-1 and GF-2 remote sensing image,human-computer interactive interpretation and on-site verification,and the substance amount and value quantity of seven service functions of farmland ecosystem in Wuma River Watershed are evaluated by referring to the classification method of " Millennium Ecosystem Assessment",and using market valuation method,shadow engineering method and opportunity cost method to provide a reference for research of farmland ecosystem service and ecological environment construction of Chishui River Watershed in Guizhou.Results:Total annual service value and unit service value of farmland ecosystem in Wuma River Watershed is 56 546.5 × 104 Yuan and 30 838.1 Yuan/hm2 respectively.The value of availability products,climate regulation,oxygen released from photosynthesis,soil conservation,carbon sequestration,water conservation and biological diversity is 9 964.3 × 104 Yuan,8 868.2×104 Yuan,3 687.0×104 Yuan,9 826.2×104 Yuan,5 398.2×104 Yuan,10 724.7×104 Yuan and 8 077.8 × 104 Yuan respectively.
farmland ecosystemservice functionvalue evaluationWuma River WatershedGuizhou
NETL
NSTL
万方数据
维普
