摘要
水利工程的生态系统服务功能涉及影响因素众多,各因素间相互关联、逻辑关系复杂,但往往具有层次结构。每个因素对系统服务功能贡献的大小有其自身属性所决定的确定性,但实际度量中又表现为模糊性特征,针对常用替代方法(如市场价值法、机会成本法、影子工程法、旅行费用法、防护费用法等)评价生态系统服务功能的缺点,将系统工程决策方法和模糊数学评价方法有机结合,提出了一种层次分析-模糊数学(AHP-FUZZY)水库生态系统服务功能综合评价方法,该方法较全面地考虑了水库生态系统服务功能的多种影响因素,避免了仅考虑少数几种判据所带来的局限性,同时通过层次结构分析较为客观地给出了各种影响因素的影响度值,为提高水库生态系统服务功能综合评价的可靠性创造了条件。
Ecosystem service functions of hydropower project involves in many factors.The various factors are interrelated,and logical relationships are very complex,but they often have a hierarchical structure.Each of these factors contributing to the system service function has its own attributes;however,it performs the fuzzy characteristics in the actual measurement.Aim at the shortcomings of commonly used alternative evaluation methods（such as market value,opportunity cost,shadow project method,travel cost method,protection cost method,etc.）,this paper put forward a new AHP-FUZZY method by combining analytic hierarchy process and fuzzy programming.Many kinds of factors were considered in the method,avoiding the limitations of only a few criteria to consider.At the same time,a more objective affecting degree value was given through the hierarchical structure analysis.It would improve the reliability of reservoir ecosystem services function comprehensive evaluation.
出处
《长江流域资源与环境》
CAS
CSSCI
CSCD
北大核心
2011年第1期107-110,共4页
Resources and Environment in the Yangtze Basin
基金
国家自然科学基金重点项目"雅砻江水电开发联合研究"(50639070)
