摘要
【目的】全面估算南水北调西线工程向黑山峡宁夏受水区供水对该区生态环境建设的生态效益。【方法】运用经济学效用和消费者补偿剩余原理,研究生态环境改善的消费者补偿剩余计算方法。根据黑山峡宁夏生态环境建设区的生态环境效益类型和特点,结合国内外生态环境用水效益的研究成果,提出黑山峡生态环境建设区生态环境效益的多种估算方法。在调查生态效益相关参数的基础上,分别研究计算宁夏生态建设区生态环境改善的各种直接效益与间接效益。【结果】南水北调西线工程供水可极大地改善生态建设区的生态环境状况,黑山峡宁夏生态建设区的年生态效益为13.24亿元,其中间接提供的生态服务效益,包括改善环境、提供生境、净化空气、土壤保持、涵养水源等价值7.46亿元,直接提供生态产品,主要指农、林、畜牧产品增收经济价值5.74亿元,以及移民健康效益0.04亿元。【结论】在干旱区生态环境类型划分、生态环境改善的效益评价方面进行了一些探索性研究,可为全面评价南水北调西线工程的生态环境效益提供参考。
【Objective】 Supplying water to Heishan Gorge Ecological Improvement Area has great significance on West Route engineering of South-to-North Water Transfer.The research assessed the effects of the water supply.【Method】 Applying the utility theory and consumer theory in micro-economics,the method of consumer surplus evaluation by the ecological environment improvement is studied.According to the types and trait of ecological effects in Heishan Gorge Ecological Improvement Area,integrating with the research result on the ecological water consumption in domestic and overseas,some methods about ecological effect evaluation in Heishan Gorge Ecological Improvement Area are put forward.On the basis of survey on spots,the correlative parameters of effect evaluation are set up.The direct and indirect effects of all ecological environment improvement are studied,and the total value of ecological effect is calculated.【Result】 The study indicates that the supplying water to Heishan Gorge Ecological Improvement Area can improve the status of the local environment greatly,the ecological effect amounts to about 1.324 billion CNY annually,among which,indirect ecological effect is about 0.746 billion CNY,including,environment improvement,survival surrounding supply,air purity,soil hold,water resources conservancy and so on.Direct ecological products mostly refer to agriculture,forest,farming products,the increasing effect of which is about 0.574 billion CNY,and immigrant effect 0.004 billion CNY.【Conclusion】 The paper explores on the fields of ecological types and about drought area and effect evaluation of environment improvement,and tries to provide some reference to ecological and environmentul effect evaluation for West Route engineering of South-to-North Water Transfer.
出处
《西北农林科技大学学报（自然科学版）》
CSCD
北大核心
2008年第4期206-212,共7页
Journal of Northwest A&F University(Natural Science Edition)
基金
国家“十一五”科技支撑计划项目(2006BAB06B06)
国家自然科学基金项目(50479024)
关键词
黑山峡生态建设区
消费者剩余
补偿剩余
生态环境效益
南水北调
Heishan Gorge Ecological Improvement Area
consumer surplus
compensative surplus
ecological effect
South-to-North Water Transfer
