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长春南湖底泥疏浚前后水因子分析及动态变化
引用本文:王小雨,冯江,胡明忠.长春南湖底泥疏浚前后水因子分析及动态变化[J].中国环境监测,2004,20(2):10-13.
作者姓名:王小雨  冯江  胡明忠
作者单位:1. 东北师范大学城市与环境科学院,吉林,长春,130024
2. 吉林大学环境与资源学院,吉林,长春,130026
基金项目:吉林省环保局项目(2002-),长春市科学技术局项目(02 069504)
摘    要:监测了长春南湖底泥疏浚后的DO、NH4_N、NO2_N、NO3_N、BOD5、CODCr、TN、TP、SS、pH、SD和水温等12项水化学指标。用因子分析方法找出了底泥疏浚前后影响南湖水质的主要因子,分析了底泥疏浚前后南湖水质变化的特征和底泥疏浚对南湖水质的影响,分析结果表明,南湖疏浚前主要污染物是总磷,疏浚后总磷对水质的影响降低,悬浮物作用增大。

关 键 词:因子分析  底泥疏浚  水质动态变化  南湖
文章编号:1002-6002(2004)02-0010-04
修稿时间:2003年5月29日

Factor analysis and dynamics of pre-and post-dredging of Nanhu Lake in Changchun
WANG Xiao-yu,FENG Jiang,HU Ming-zhong.Factor analysis and dynamics of pre-and post-dredging of Nanhu Lake in Changchun[J].Environmental Monitoring in China,2004,20(2):10-13.
Authors:WANG Xiao-yu~  FENG Jiang~  HU Ming-zhong~
Institution:WANG Xiao-yu~,FENG Jiang~,HU Ming-zhong~
Abstract:Located in Changchun, Jili Province, Nanhu Lake is a small shallow and man-made eutrophica lake. Though the countermeasures, such as controlling outer pollution source, especially poing-source and ecological engineering had been adopted to deal with the eutrophication of Nanhu Lake, it still was in mesotrophic. Therefore, sediment dredging had been employed in practice since 2000. In order to assess the effects of the sediment dredging, twelve indices of water quality, including dissolved oxygen(DO),NH\-3-N,NO\-2-N,NO\-3-N,five days biochemical oxygen demanded(BOD\-5), chemical oxygen demanded(COD\-\{Cr\}),total nitrogen(TN),total phosphorus(TP),solid suspended(SS),pH value,Scheei-depth(SD) and water temperature(WT), had been investigated in 2002. However, these indices were respectively, they were hard to describe the integrated effects of the sediment dredging. In this paper, based on the monitoring data of post-dredging in 2002 and data collected of pre_dredging in 1998, the water quality of Nanhu Lake was analyzed by applying factor analysis method, which comprehensively considered twelve indices of water quality. Results showed that TP was the most inportant factor before sediment dredging, and the role of SS increased after sediment dredging. Moreover, results also presented that the method was comprehensive and efficient in analyzing the water quality of pre- and post-dredging.
Keywords:factor analysis  sediment dredging  dynamics water quality  Nanhu Lake
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