农村非点源污染对半岭水库营养水平的影响  

Effects of Rural Non-point Source Pollution on Water Trophic State Level of Banling Reservoir

作　　者：杨波[1] 王文[1] 任丙南[1] 耿静[1] 陈文术[1] 

机构地区：[1]三亚学院理工学院,海南三亚572022

出　　处：《安徽农业科学》2015年第26期247-248,252,共3页Journal of Anhui Agricultural Sciences

基　　金：海南省高等学校科研项目(Hjkj2013-46);三亚学院人才引进项目(XYRZ11-11)

摘　　要：为了评估农村非点源污染对水库水体营养水平的影响,以三亚市半岭水库为研究对象,分析了库区非点源污染的构成类型及其污染量,同时,根据模型预测了非点源污染对水库水体TN、TP的贡献浓度。在此基础上,以非点源污染对水库水体TN、TP贡献浓度与实际监测浓度之比来评估农村非点源污染对水库水体营养水平的影响。结果表明,非点源污染大部分来自于农业生产活动,其污染物COD、TN和TP的贡献率分别达到了77.5%、68.5%和43.3%,其次为禽畜养殖,其污染物COD、TN和TP的贡献率分别为12.2%、12.4%和41.4%,农村生活污染贡献相对较小。库区农村非点源污染对水库水体TN质量浓度的贡献为0.171 mg/L,TP质量浓度的贡献为0.006 8 mg/L。农村非点源污染的TN和TP对水库的N和P的营养水平的贡献率分别为55.4%和75.6%,可见农村非点源污染是水库水体营养负荷的主要污染源。For assessment the effects of rural non-point source pollution on water trophic state level,as a case study of Banling Reservoir,the composition and load of non-point pollution in Banling Reservoir area were studied,at the meaning time,based on model prediction of water TN,TP concentration due to the rural non-point source pollution,the effects of rural non-point source pollution on water trophic level of Banling Reservoir were also studied. The results showed that agricultural production activities played main important role in rural non-point pollution,and their contribution ratio to COD,TN and TP nutrient load were 77. 5%,68. 5% and 43. 3% respectively. The main pollution types were in order of important： agricultural production activities,poultry and livestock breeding and rural domestic pollution. The TN and TP load caused by the total rural non-point source pollutant reached to 0. 171 and 0. 006 8 mg / L respectively,their contribution ratio to nutrient level were 55. 4% and 75. 6% respectively,which indicated that the main contributor to water trophic state level of Banling Reservoir was rural nonpoint source pollution.

关 键 词：半岭水库 农村非点源污染 营养水平 

分 类 号：S181.3[农业科学—农业基础科学] X521[环境科学与工程—环境工程]