焉耆盆地农排渠水质变化特征及其污染源分析  

Aanalysis of water quality change characteristics of agricultural drainage canals and their pollutant sources in Yanqi Basin

作　　者：胡洋[1] 巴图那生 蔡舰 白承荣 高光[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]新疆巴州博斯腾湖科学研究所,新疆库尔勒841000

出　　处：《水资源保护》2017年第5期154-158,176,共6页Water Resources Protection

基　　金：国家水体污染控制与治理科技重大专项(2013ZX07104-004);环保公益性行业科研专项(201309041)

摘　　要：选取8项水质指标,对2005—2013年焉耆盆地内的7条主要农田排渠的水质进行评价,并采用主成分分析法寻找主要污染物。结果表明,2005—2013年7条主要农田排渠的水质基本处于Ⅴ类水状态,并以微咸水和咸水为主;各排渠水体中以TN和NH+4-N为主要污染物,CODMn和BOD是农排渠水体中第二污染物,TDS是农田排渠水体中第三污染物。农业活动和工业废水以及博斯腾流域气候是造成农排渠水体中矿化度成为污染物的因子。In this study, 7 main farmland drainage canals were evaluated by selecting 8 water quality indictors inYanqi Basin from the year 2005 to 2013. Furthermore, the major pollutants were trackeded by Principle ComponenAnalysis （PCA）. Study results showed that the water quality in the said 7 canals was basically classified as Vgrade,mainly characterized by brackish water or saline water. The major pollutants of water body in the agriculturadrainage cannals firstly consisted of total nitrogen and ammonia; secondly, of the Chemical Oxygen Demand（C0DMn） and Biological Oxygen Demand （BOD） ; and thirdly, of the total dissolved solids （TDS）.

关 键 词：水质评价 农排渠 污染源分析 主成分分析法 焉耆盆地 

分 类 号：X592[环境科学与工程—环境工程]