南水北调东线工程徐州段河流生境质量评价  

ASSESSMENT OF RIVER HABITAT QUALITY OF XUZHOU REACH ON EAST ROUTE OF SOUTH TO NORTH WATER TRANSFER PROJECT

作　　者：王雁[1] 赵家虎[1,2] 黄琪[3,1] 高俊峰[1] 

机构地区：[1]中国科学院南京地理与湖泊研究所,江苏南京210008 [2]中国科学院大学,北京100049 [3]江西师范大学鄱阳湖湿地与流域研究教育部重点实验室,江西南昌330022

出　　处：《长江流域资源与环境》2016年第6期965-973,共9页Resources and Environment in the Yangtze Basin

基　　金：国家水污染治理重大专项(2012ZX07501002-008;2012ZX07506-001;2012ZX07103003-04-01;2012ZX07501-001-03);国家重点基础研究发展计划(2012CB417006)~~

摘　　要：河流生境质量评价是河流生态系统健康评价的关键之一。本文评价自然和人为作用下的河流生境质量,以南水北调东线工程徐州段丰县、邳州两市输水通道上的河流为研究对象,结合环境特点,选择了反映河道生境、河岸生境和滨岸带生境的10个指标,给出了每个指标的评价方法和5级标准特征值,建立河流生境质量评价体系,确定评价指标的等级标准,对研究区内16个河段的生境质量状况进行综合评价。结果表明:(1)河流生境质量指数(IRHQ)综合得分介于33~91。根据评价等级划分标准,其中有50%的河段生境质量达到"优"等,其余介于"良"等到"劣"等,河流生境质量整体状况良好。(2)河流生境质量指数与NH_4^+-N、COD、TN呈负相关,与DO呈正相关,多项生境指标也与水质指标具有相关性,表明生境质量与水质的相互影响。Assessment of river habitat quality is one of the keys to the assessment of river ecosystem health In this paper, an assessment system of river habitat quality was established according to environmental characteristics of rivers in Xuzhou Reach on east route of South to North Water Transfer Project in Northern Jiangsu. This system included 10 indices of river habitat quality for three different habitats（channel, bank, and riparian habitats）. The results indicate that the habitat quality assessment score ranged from 33 to 91. According to the criteria of habitat quality, the scores are classified into five categories, namely excellent, good, fair, poor and very poor. The behaviors of 16 reaches were 8 ＂excellent＂, 4 ＂good＂, 1＂fair＂, 1＂poor＂ and 2 ＂very poor＂, respectively. The rivers in the regions of the project possessed favorable habitat quality which varied mostly between levels of excellent and good. The comprehensive river habitat assessment indicator was negatively correlated with NH_4~＋-N, COD, TN, and positively correlated with DO. Most of habitat quality indices were also correlated with the water quality index. It was indicated the interaction between habitat quality and water quality.

关 键 词：河流生境 指标体系 质量评价 南水北调东线 

分 类 号：X826[环境科学与工程—环境工程]