滹沱河流域本底状态地表水氮、磷非点源污染评价  

Evaluation of Non-point Source Pollution on Nitrogen and Phosphorus of Surface Water of Hutuo River Valley under Background State

作　　者：孟令尧 史密伟[1,2] 闫新兴 卢虹 朱晓磊[2] 

机构地区：[1]河北省地理科学研究所,河北石家庄050011 [2]河北大学化学与环境科学学院,河北保定071002 [3]河北省环境工程评估中心,河北石家庄050051

出　　处：《地理与地理信息科学》2009年第3期95-98,102,共5页Geography and Geo-Information Science

基　　金：河北省自然科学基金“岗南水库氮、磷非点源污染负荷本底值估算及其对水环境的影响研究”(D2005000588);河北省引进留学人员经费资助项目

摘　　要：通过对滹沱河流域各支流源头区地表水中氮、磷浓度监测分析，得出本底状态下总氮浓度为0．223～5．631mg／L，氨氮浓度范围为未检出～0．634mg／L，可溶态氮浓度为0．190～5．532mg／L，总磷浓度为0．024～0．683mg／L，可溶态磷浓度为0．026-0．220mg／L。本底状态下各水文期氮的非点源污染形态都以可溶态氮为主；磷的非点源污染形态枯水期以可溶态磷居多，丰水期以颗粒态磷为主。滹沱河流域本底状态下氮、磷非点源污染水平较高。The headwaters areas of all tributaries of Hutuo River, which have been slightly interfered by human being, have been taken as the major study areas in this paper. The concentration of nitrogen and phosphorus in surface water in the study areas is monitored and analyzed. The results show that under the background state,the concentration of TN is 0. 223~ 5. 631 mg/L, the concentration range of ammonian is non-0. 634 mg/L, the concentration range of dissolved nitrogen is 0. 190-5. 532 mg/L, the concentration of TP is 0. 024-0. 683 mg/L,and the concentration of dissolved phosphorus is 0. 026-0. 220 mg/L. Under the background state, the non-point source pollution forms of nitrogen in all hydroperiods are mainly the dissolved nitrogen;the nonpoint source pollution form of phosphorus in low flow period is mostly the dissolved phosphorus, and is mainly the granular phosphorus in high flow period. The non-point source pollution level of nitrogen and phosphorus in Hutuo River valley under background state is high.

关 键 词：滹沱河 氮 磷 本底值 非点源污染 

分 类 号：X824[环境科学与工程—环境工程]