[1]展永兴,吴心艺.东太湖水体中嗅味物质分布及网围养殖对其影响[J].江苏水利,2018,(09):1-5.
　ZHAN Yongxing,WU Xinyi.Influence of the taste and odor substances distribution and enclosure culture in East Taihu Lake[J].JIANGSU WATER RESOURCES,2018,(09):1-5.
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东太湖水体中嗅味物质分布及网围养殖对其影响()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2018年09期
页码:
1-5
栏目:
生态与环境
出版日期:
2018-09-15

文章信息/Info

Title:
Influence of the taste and odor substances distribution and enclosure culture in East Taihu Lake
文章编号:
1007-7839（2018）09-0001-05
作者:
展永兴; 吴心艺
江苏省太湖水利规划设计研究院有限公司，江苏 苏州 215128
Author(s):
ZHAN Yongxing; WU Xinyi
Jiangsu Taihu Planning and Design Institute of Water Resources Co.，Ltd，Suzhou 215128，Jiangsu
关键词:
东太湖; 围网养殖; 2-MIB; 嗅味物质
Keywords:
East Taihu Lake; enclosure culture; 2-MIB; taste and odor substances
分类号:
X524
文献标志码:
B
摘要:
东太湖是太湖流域重要的水源地，苏州市吴江区取水口位于其中，水体中出现异嗅味。为了解东太湖水体中嗅味物质的空间分布及甄别围网养殖可能对其的影响，在东太湖的不同区域设置监测点位，利用GC-MS对水体中的嗅味物质进行监测。结果表明：1）水体中嗅味物质2-甲基异莰醇（MIB）和土嗅素（Geosmin）的浓度分布具有显著的空间异质性，其浓度随距养殖区域距离的增加而递减；2）水体中嗅味物质2-MIB和Geosmin的浓度与温度显著正相关，当温度为最高时，其最大浓度分别达到1121.99 ng/L和34.29 ng/L；3）水温和硝酸盐氮浓度对2-MIB浓度有极显著影响（P＜0.01），水温越高，硝酸盐氮浓度越高，2-MIB浓度越高，总磷浓度和硝酸盐氮浓度对土嗅素浓度有显著影响（P＜0.05）。网围养殖可能是水体中嗅味物质的一个重要来源，在东太湖及其它水源地治理中应引起高度重视。
Abstract:
East Taihu Lake is an important water source in Taihu Lake bans.i The water intake of Wujiang District in Suzhou City is in East Taihu Lake, and there is a peculiamre lls in the water body.In order to understand the spatial distribution of taste and odor substances in East Taihu Lake da nidentify the possible effects of enclosure culture , monitoring sites were set up in different areas, and GC-MS wuasse d to monitor the taste and odor substances in the water.The results showed that: 1) the concentration distribution of -m2ethylisocamptol (MIB) and Geosmin had significant spatial heterogeneity, and their concentrations decreased witht he increase of the distance from the culture area; 2) the concentration of 2-MIB and Geosmin in the water was positivelcyo rrelated with the temperature, and the concentration was the highest.The concentrations of 2-MIB and Geosmin woulrde spectively reach 1121.99 ng/L and 34.29 ng/L when the temperature was the highest.3) The water temperature andi tnrate nitrogen concentration had significant effects on the concentration of 2-MIB (＜P0.01).The higher the water temperature was, the higher the ccoenntration of nitrate nitrogen, and the higher the concentration of 2-MIB.The concternations of total phosphorus and nitrate nitrogen had significant effects on the Geosmin concentration (＜P0.05).Enclosure culture might be an important source of tastaend odor substances in water, and great attention should be paid tohe treatment of East Taihu Lake and other water sources.

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相似文献/References:

[1]殷 鹏,张建华,华 萍.改善东太湖水环境的水工程措施研究[J].江苏水利,2019,(07):1.
　YIN Peng,ZHANG Jianhua,HUA Ping.Study on water engineering measures for improving water environment in east Taihu Lake[J].JIANGSU WATER RESOURCES,2019,(09):1.

备注/Memo

备注/Memo:
收稿日期：2018-07-16
作者简介：展永兴（1975—），男，高级工程师，主要从事水利规划设计工作。
更新日期/Last Update: 2018-09-15