水力发电学报2011，Vol.30Issue(4)：56-64,9.
生态系统供水发电服务评估及经济价值测算——以雅砻江二滩电站为例
Evaluation of ecosystem service for water supply and power generation and its economic value：A case study of Ertan hydropower on Yalong river
摘要
Abstract
On the platform of the integrated Geographic Information System（GIS） software package ArcGIS9.2,a model was developed to simulate the ecosystem service of water supply and power generation and its economic value based on land use/cover.This model simulates the annual water supply of watershed for power generation by taking input parameters of precipitation,potential evaportranspiration,characteristic parameter of underlying surface and water consumption.Spatial distribution features of the ecosystem power generation over the watershed can be simulated using the characteristic parameters of the hydropower stations studied,each pixel＇s contribution ratio to the total water use by hydropower production and the formula of hydropower resources.The economic value of ecosystem service is determined by electricity price and total annual operating costs.In a case study of the Ertan hydropower and its watershed,the simulation showed an actual water supply of 311.63×108m3·a-1 to this hydropower in 2000 and a total power output of 5763.84×108kW·H and a total net present value（NPV） of power generation of 888.66×108 Yuan in the remaining years of the Ertan＇s expected lifetime.The grassland contribution ratio 54.23% to the ecosystem service value was higher than those of the other factors,and the higher contribution ratios of water supply to the Ertan power output come from southeastern part of the watershed such as Kangting,Jiulong,Mianning,Xide and Xichang.关键词
生态系统生态学/供水发电生态系统服务/模型模拟/二滩水电站/土地利用/覆被/经济价值Key words
ecosystem ecology/ecosystem service for water supply and power generation/modeling/Ertan hydropower station/land use/cover/economic value分类
资源环境引用本文复制引用
吴楠,高吉喜,苏德毕力格,Driss Ennaanay,Guillermo F. Mendoza,罗遵兰,李岱青,田美荣..生态系统供水发电服务评估及经济价值测算——以雅砻江二滩电站为例[J].水力发电学报,2011,30(4):56-64,9.基金项目
UNEP/GEF长江流域自然保护与洪水控制项目 （）
国家科技支撑计划项目 （）
环保公益性行业科研专项 （）
