| 北方高盐景观水体氮磷时空分布特征及富营养化评价 |
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| 引用本文： | 白文辉,王晓昌,王楠,刘红磊,刘言正.北方高盐景观水体氮磷时空分布特征及富营养化评价[J].环境工程,2017,35(4). |
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| 作者姓名： | 白文辉 王晓昌 王楠 刘红磊 刘言正 |
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| 作者单位： | 1. 西安建筑科技大学 环境与市政工程学院,西安,710055;2. 天津市环境保护科学研究院,天津,300191 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项“城市内湖氮磷去除及富营养化控制技术研究”，城市核心区水环境改善技术研究与综合不范，陕西省协同创新计划项目 |
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| 摘 要： | 为掌握北方高盐景观水体的水环境状况,选取天津市中新生态城3个景观水体(清净湖、蓟运河和蓟运河故道)为研究对象,于2013年12月—2014年11月对其进行定期取样监测,开展水体氮磷污染特征分析及富营养化评价。结果表明:1)蓟运河、清净湖和蓟运河故道的TDS均值分别为3.42,4.64,20.2 g/L,属于高盐景观水体;2)水体TN和TP浓度逐月变化显著,水质整体上冬春季优于夏秋季,其中蓟运河TP和TN的浓度最大,且波动较大;3)根据TN/TP比值判定,研究区水体除清净湖在短时间表现为氮限制外,水体大部分时间段内表现为磷限制,P为主要限制因子;4)富营养化评价表明:水体均处于富营养状态,且有蓟运河蓟运河故道清净湖;5)相关性结果表明:TDS与电导率、水温及EI呈显著正相关,相关系数分别为0.905、0.822和0.645,盐度也是影响富营养化的关键因素。
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| 关 键 词： | 高盐 景观水体 富营养化 氮磷浓度 |
DISTRIBUTION CHARACTERISTICS OF NITROGEN AND PHOSPHORUS AND EUTROPHICATION EVALUATION FOR A LANDSCAPE WATER WITH HIGH SALINITY IN NORTHERN CHINA |
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| BAI Wen-hui,WANG Xiao-chang,WANG Nan,LIU Hong-lei,LIU Yan-zheng.DISTRIBUTION CHARACTERISTICS OF NITROGEN AND PHOSPHORUS AND EUTROPHICATION EVALUATION FOR A LANDSCAPE WATER WITH HIGH SALINITY IN NORTHERN CHINA[J].Environmental Engineering,2017,35(4). |
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| Authors: | BAI Wen-hui WANG Xiao-chang WANG Nan LIU Hong-lei LIU Yan-zheng |
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| Abstract: | To understand the water environmental situation of landscape water with high salinity in northern China,three landscape water bodies (Qingjing Lake,Jiyun River and Jiyun River Oxbow) in Tianjin were selected as the research object.Based on the data of regular monitoring of water quality from December,2013 to November,2014,pollution characteristics of nitrogen and phosphorus on eutrophication evaluation of water were investigated.The results showed that:1) The average value of TSD of Jiyun River,Qingjing Lake and Jiyun River Oxbow were 3.42,4.64,20.2 g/L,respectively,which indicated that the studied water belonged to high salinity landscape water;2) the monthly mean values of TP and TN contents varied significantly,overall,the water quality in winter and spring was better than that in summer and autumn,and the TN and TP concentrations of Jiyun River were the highest and fluctuated fiercely;3) according to the ratio of TN/TP,the studied waters,except Qingjing Lake,were phosphate-limited in most time whereas Qingjing Lake was in short time;4) eutrophication evaluation showed that the water bodies were in the eutrophic state,and the eutrophication level was in sequence of Jiyun River ＞ Jiyun River Oxbow ＞ Qingjing Lake;5) correlation analysis results showed that TDS had a significant positive correlation with conductivity,water temperature and EI,and the correlation coefficients were 0.905,0.822 and 0.645 respectively.The result indicated that salinity was also a key factor on eutrophication. |
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| Keywords: | high salinity landscape water eutrophication concentration of nitrogen and phosphorus |
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