气象与环境学报2012，Vol.28Issue(5)：83-89,7.
辽河流域水生态功能一级分区指标体系与技术方法
An index system and a technical method for the first level aquatic ecoregion in the Liaohe river basin
摘要
Abstract
Aquatic ecoregion of watershed can offer an important foundation for integrated management of water environmental and for changing the management objectives from water quality to aquatic eco-health.Based on the natural attributes of the spatial differentiation of ecological pattern in the Liaohe river basin at a large scale and the progress on ecological environment division in home and abroad,the correlations between the natural factors such as the ratio of annual precipitation to mean annual temperature(P/T),depth of runoff(RD),digital elevation model(DEM),NDVI,hydrological and geologic factors(RP),aquatic environment factors of river and aquatic organism index were analyzed by a canonical correlation analysis(CCA)method.DEM,RD,RP and NDVI were selected as the first level factors of aquatic ecology division,and then an index system and a technical method on aquatic ecoregion were established.The results indicate that it can be divided into 4 first level aquatic ecoregions in the Liaohe river basin,i.e.the mountain and hill area in the upper reaches of west Liaohe river located in the southeast of Daxing′anling and the north of Hebei province,the plain area in the middle and lower reaches of the west Liaohe river,the plain area in the middle of the Liaohe river,the mountain and hill area in the upper reaches of Liaohe-Taizihe river,respectively.All the aquatic ecoregions have the significant relationships with the results of fish species cluster analysis according to historical data and field investigation data.The study offers the technical support for ecological management in the Liaohe river basin and references for the establishment of the technical method of aquatic ecoregion at watershed scale in China.关键词
辽河流域/水生态功能分区/指标体系/分区方法Key words
Liaohe river basin/Aquatic ecoregion/Index system/Division method分类
生物科学引用本文复制引用
李法云,范志平,张博,王艳杰,胡成,刘素平..辽河流域水生态功能一级分区指标体系与技术方法[J].气象与环境学报,2012,28(5):83-89,7.基金项目
国家水体污染控制与治理科技重大专项 （）
国家科技支撑项目 （）
沈阳市科技局计划项目 （）
辽宁省自然科学基金项目 （）
辽宁省百千万人才工程资助项目 （）
哈尔滨工业大学城市水资源与水环境国家重点实验室开放基金项目共同资助 （）
