摘要
本文基于平原河网地区水系生态环境特征,剖析河网河流水生态评估因子内涵,构建了包含河流自然形态结构、水体质量状况、水文水动力状况、水生生物状况4个一级指标和25个二级指标在内的平原河网地区河流水生态评价指标体系,并以层次分析法确定各层级指标的权重,依据柯西分布函数确定隶属度,建立水生态状况的模糊综合评估模型,选取太湖流域望虞河进行实例应用。
Considering environmental and ecological features of a river with plain tributary networks, this paper describes and analyzes in detail the characteristic factors of the river ecosystem, and presents an indicator system that has 4 first-class indicators （river natural morphology, hydrology, water quality, aquatic creature） and 25 second-class indicators for assessment of the ecosystem. Using this indicator system, we have developed a fuzzy comprehensive assessment model for the ecosystem that is equipped with the analytic hierarchy process （AHP） for calculation of the indicator weights and Cauchy distribution function to determine the grade of membership. A case study of ecological assessment for the Wangyu river in 2010 shows an application of this model.
出处
《水力发电学报》
EI
CSCD
北大核心
2014年第5期138-144,共7页
Journal of Hydroelectric Engineering
基金
水体污染控制与治理科技重大专项课题(2012ZX07103-005)
国家自然科学基金资助项目(51179052
51379060)
国家科技支撑计划(2012BAB03B04)
水利部公益性行业科研专项经费(201001028)
关键词
环境工程学
指标体系
模糊综合评价
平原河网
水生态
望虞河
environmental engineering
indicator system
fuzzy comprehensive assessment
plain tributarynetworks
river ecosystem
Wangyu river
