黄土塬地区集雨窖水水源地优选  

Optimization of water sources for harvesting rainwater in Loess Plateau

作　　者：张国珍[1] 赵伟娜[1] 何春生[1] 武福平[1] 米宗敏[1] 刘玲花[2] 

机构地区：[1]兰州交通大学环境与市政工程学院,兰州730070 [2]中国水利水电科学研究院水环境研究所,北京100038

出　　处：《生态学杂志》2010年第4期749-753,共5页Chinese Journal of Ecology

基　　金：国家科技支撑计划项目(2006BAJ08B08-03);国家水体污染控制与治理科技重大专项资助项目(2008ZX07425-005)

摘　　要：为提高黄土塬地区窖水水质,保证窖水饮用安全,集雨水源地的选择势在必行。本文通过应用主成分分析法,研究了优质集雨水源地和决定水质的控制指标。结果表明,在不同类型集雨水源地中,水泥地面和瓦屋面的综合主成分得分分别为-3.350和-1.945,污染程度分级结果为轻度,是集雨的最佳场地;COD、NH4+-N、TP、SS和粪大肠菌群在主成分中具有高荷载值;集雨水受有机物质、地表尘土、人畜粪便污染明显,与人为活动密切相关。最后,就集雨水源地在政策法规、水质保护技术体系、水质检测和保护等方面提出了改善措施和建议。To improve the water quality and make sure the drinking safety of cellar water in Loess Plateau,the selection of the water sources for harvesting rainwater is imperative.By the method of principal component analysis （PCA）,this paper determined the high-quality rainwater sources and the related control indices.Among the different types of test water sources,cement ground and tile roof were the better fields for harvesting rainwater,with their integrated principal component scores being-3.350 and-1.945,respectively.The indices COD,NH4＋-N,TP,SS,and fecal coliform had high load values in the main components.The harvested rainwater was mainly pollutted by organic matter,surface dust,and animal and/or human excreta,which obviously related to human activities.Some improvement measures and recommendations for the source rainwater were also proposed from the aspects of policies and regulations,water quality protection technology systems,and water quality testing and protection.

关 键 词：集雨窖 水源地 优选 主成分分析 

分 类 号：R123.1[医药卫生—环境卫生学]