京杭大运河江苏段氨氮浓度时空变化研究  

Study on the Temporal and Spatial Variations of NH_3-N at the Section of Jiangsu Province of the Beijing- Hangzhou Grand Canal

作　　者：汪晓燕[1,2] 钟声[1] 

机构地区：[1]江苏省环境监测中心,江苏南京210036 [2]江苏省苏力环境科技有限责任公司,江苏南京210036

出　　处：《安徽农业科学》2015年第30期201-202,共2页Journal of Anhui Agricultural Sciences

基　　金：太湖水污染治理专项资金(第八期)综合类科研课题(TH2014401)

摘　　要：[目的]进一步掌握京杭大运河江苏段的水质现状和污染来源，从而制定合理的整治措施保护京杭大运河的水环境。[方法]以7个位于京杭大运河江苏段上下游断面的水质自动站的1年监测数据为基础，分析比较了氨氮浓度时空变化特征。[结果]京杭大运河江苏段2014年水体氨氮浓度在0．07～4．02mg／L之间变化，且由上游至下游水体中氨氮浓度基本呈逐渐上升趋势；上游徐州蔺家坝断面氨氮浓度最高值出现在7月，其余6个断面氨氮浓度最高值出现在枯水期；同一季节不同断面氨氮浓度之间存在显著性差异．尤其是无锡五牧断面氨氮浓度最高。[结论]该研究可为客观评价、合理开发、充分利用和保护该地区流域的地表水环境提供一定科学依据。[ Objective] In order to further study the water quality and pollution source at the section of Jiangsu Province of the Beijing - Hang- zhou Grand Canal, and make reasonable rectification measures to protect water environment of the Canal. [ Method] Based on one-year monitoring data from 7 automatic monitoring stations which were located in the upstream and downstream sections of Jiangsu Province of the Canal, the tem- poral and spatial variations of NH3-N were analyzed and compared. [ Result] NH3-N concentration changed from 0.07 to 4.02 mg/L in 2014 at the section of Jiangsu Province of the Beijing - Hangzhou Grand Canal. From upstream to downstream, NH3-N concentration was gradually in- creasing. NH3-N maximum at Xuzhou Linjiaba section was in July, while others were in dry season. At the same season, NH3-N concentrations at different sections were significantly different, and NH3-N concentration at Wuxi Wumu section was especially highest. [ Conclusion] The research could provide certain science basis for objectively evaluating, reasonably developing, sufficiently using and protecting surface water environment in the region.

关 键 词：京杭大运河江苏段 氨氮 时空变化 显著性差异 

分 类 号：S181.3[农业科学—农业基础科学] X522[环境科学与工程—环境工程]