|本期目录/Table of Contents|

[1]张 晨,陈孝军,王立义,等.于桥水库菹草过度生长对水质的影响及成因分析[J].天津大学学报(自然科学版),2011,(01):1-6.
 ZHANG Chen,CHEN Xiao-jun,WANG Li-yi,et al.Impact of Excessive Growth of Potamogeton Crispus on Water Quality and Cause Analysis in Yuqiao Reservoir[J].Journal of Tianjin University,2011,(01):1-6.
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于桥水库菹草过度生长对水质的影响及成因分析()
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《天津大学学报(自然科学版)》[ISSN:0493-2137/CN:12-1127/N]

卷:
期数:
2011年01
页码:
1-6
栏目:
环境科学与工程
出版日期:
2011-01-15

文章信息/Info

Title:
Impact of Excessive Growth of Potamogeton Crispus on Water Quality and Cause Analysis in Yuqiao Reservoir
作者:
张 晨1陈孝军2王立义3高学平1
1. 天津大学建筑工程学院,天津 300072;2. 天津市引滦工程于桥水库管理处,天津 301900;3. 天津市水利局引滦工程管理处,天津 301900
Author(s):
ZHANG Chen1CHEN Xiao-jun2WANG Li-yi3GAO Xue-ping1
1. School of Civil Engineering,Tianjin University,Tianjin 300072,China;2. Yuqiao Reservoir Administrative Bureau of Luan River-Tianjin Water Diversion Project,Tianjin 301900,China;3. Administrative Bureau of Luan River-Tianjin Water Diversion Project,Tianjin 301900,China
关键词:
草型富营养化沉水植物菹草过度生长水质于桥水库
Keywords:
1. School of Civil EngineeringTianjin UniversityTianjin 300072China2. Yuqiao Reservoir Administrative Bureau of Luan River-Tianjin Water Diversion ProjectTianjin 301900China3. Administrative Bureau of Luan River-Tianjin Water Diversion ProjectTianjin 301900China
分类号:
X524
文献标志码:
A
摘要:
通过对于桥水库水生植物种群群落和生物量的调查,分析水质监测成果和影响菹草生长的因素,研究菹草过度生长对水库水质的影响,探究于桥水库菹草疯长发生成因.对Lambert-Beer 定律公式进行变换,分析水下太阳辐照度与水深和透明度的关系.结果表明:在菹草死亡腐败期,过量菹草衰亡释放的高营养盐和有机质对水质影响较大,恶化程度近1倍,持续时间约为1 周;导致于桥水库出现菹草疯长现象的主要原因是光照度、透明度、水深和水温等条件;当透明度一定时,4 月水位提高1,m,水下太阳辐照度将降低56.5%,菹草所能获得的光照能量大大减少,从而抑制了菹
草过度生长.以Lambert-Beer定律为理论依据,提出采用提高水位、改变高水位运行时间抑制菹草过度生长的新方法.
Abstract:
Based on the survey of aquatic plant species community and biomass and analysis of the observed water quality and the factors affecting the growth of Potamogeton crispus in Yuqiao Reservoir,the impact on water quality of excessive growth of Potamogeton crispus was studied and the reason for its outbreak was discussed. The results indicate that the release of high nutrient and organic has great impact on water quality during the decline period of Potamogeton crispus, with one time of deterioration of water quality for about one week. Solar radiation,water transparency,water depth and water temperature are the major causes for excessive growth of Potamogeton crispus in the reservoir. Based on transformation formula of the Lambert-Beer law,the relationship between solar radiation intensity under the surface of water and water depth and transparency was presented. Solar radiation intensity under the surface of water will be reduced by 56.5% if water level is raised by one meter in April when water transparency is
definite. Thus,excessive growth of Potamogeton crispus can be suppressed because of the significant reduction of solar energy, which has provided the theoretical basis for the new method of increasing the water level and changing the high water level run-time during green period.

备注/Memo

备注/Memo:
通讯作者:张 晨,emil @tju.edu.cn.
更新日期/Last Update: 2011-01-15