摘要
本文研究了洋河水库底泥中磷的释放规律。通过调整上覆水的DO、pH、温度等条件,在室内进行静态模拟试验,得到了如下结果:厌氧条件促进底泥无机磷的释放,好氧条件抑制底泥磷的释放,同时还可吸收水体中的磷;弱酸性或弱碱性上覆水条件均促进底泥中磷的释放;随着温度的升高,底泥中无机磷的释放量也随之增加。
The authors studied the release features of phosphorus from sediments sampled from the Yanghe Reservoir. Experiments were carried out in laboratory, in which DO, pH and temperature of the water column in upper layer were adjusted. The results showed that： （1） Phosphorous release rate from sediments would be accelerated in anaerobic condition while in aerobic condition it sould be restrained and sediment may absorb deliquescent phosphorous; （2） Phosphorous release rate would be accelerated in weak acidic or weak alkaline conditions; （3） Phosphorous release rate would be increased with increasing of trmperature.
出处
《中国水利水电科学研究院学报》
2005年第2期104-108,共5页
Journal of China Institute of Water Resources and Hydropower Research
基金
水利部科技创新项目(SCX-2002-04)
国家自然科学基金资助项目(50379057)
关键词
洋河水库
底泥
磷
释放
厌氧条件
Yanghe Reservoir
sediments
phosphorus
release rate
anaerobic condition
