主办单位：中国气象局沈阳大气环境研究所
国际刊号：ISSN 1673-503X
国内刊号：CN 21-1531/P
气象与环境学报

气象与环境学报 ›› 2012, Vol. 28 ›› Issue (5): 83-.doi:

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辽河流域水生态功能一级分区指标体系与技术方法

李法云1,3 范志平1 张博2,3 王艳杰2,3 胡成4 刘素平2,3   

  1. 1. 辽宁石油化工大学生态环境研究院，辽宁 抚顺 113001；2. 辽宁大学环境学院，辽宁 沈阳，110036；3. 辽宁省水环境生物监测与水生态安全重点实验室，辽宁 沈阳 110036；4.辽宁省环境科学研究院，辽宁 沈阳 110036
  • 出版日期:2012-10-31 发布日期:2012-10-31

An index system and a technical method for the first level aquatic ecoregion in the Liaohe river basin

LI Fa-yun1,3 FAN Zhi-ping1 ZHANG Bo2,3 WANG Yan-jie2,3 HU Cheng4 LIU Su-ping2,3
  

  1. 1. Institute of Eco-environmental Sciences, Liaoning Shihua University, Fushun 113001, China; 2. School of Environmental Science, Liaoning University, Shenyang 110036, China; 3. Liaoning Key Laboratory of Biological Monitoring for Water Environment and Water Eco-security, Shenyang 110036, China; 4. Liaoning Academy of Environmental Science, Shenyang 110036, China
  • Online:2012-10-31 Published:2012-10-31

PDF (PC)

720

被引次数

35

摘要： 流域水生态功能分区是实现流域综合管理的重要基础，也是水环境管理由水质目标管理向流域水生态管理转变的重要依据。根据辽河流域大尺度水生态空间格局分异的自然属性，结合国内外相关生态环境分区的研究进展，通过对辽河流域水热比（P/T）、径流深（RD）、数字高程（DEM）、多年归一化植被指数（NDVI）、水文地质（RP）等自然因素、河流水环境因子及水生生物指标的典型相关分析（CCA），筛选出DEM、RD、RP、NDVI指数作为水生态功能一级分区的主要因子，并依此建立了辽河流域水生态功能一级分区指标体系与分区技术方法。结果表明：辽河流域可分为4个水生态功能一级区，即西辽河上游内蒙大兴安岭东南-冀北山地丘陵水生态区、西辽河中下游西辽河平原水生态区、辽河中下游平原水生态区及浑河—太子河上游山地丘陵水生态区。辽河流域多年历史数据与野外水生态调查数据分析表明，流域内鱼类聚类分析结果与水生态功能一级分区结果在空间分布上具有较好的吻合性。水生态功能分区结果为辽河流域水生态综合管理提供了科技支撑，同时也为我国水生态功能分区技术方法的制订提供了参考依据。

关键词: 辽河流域, 水生态功能分区, 指标体系, 分区方法

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.

Key words:  Liaohe river basin, Aquatic ecoregion, Index system, Division method