物理因素对白洋淀溶解氧的影响  

Effect of Physical Factors on Dissolved Oxygen in Baiyang Lake

作　　者：马建薇[1,2] 刘俊良[1] 李燕[1] 王军胜[3] 梁淑轩[2] 

机构地区：[1]河北农业大学城乡建设学院,保定071001 [2]河北大学化学与环境科学学院,保定071000 [3]北京朗新明环保科技有限公司,北京100039

出　　处：《中国农村水利水电》2013年第8期21-24,共4页China Rural Water and Hydropower

基　　金：国家水体污染控制与治理科技重大专项(2008ZX07209-007);河北省科技支撑计划项目(10276710D);河北省建设厅项目(2012-2071)

摘　　要：通过对白洋淀水体中溶解氧与其影响因素(温度、光照强度、水深、pH和透明度)的相关关系进行研究分析,可知:溶解氧总体上随着水温的升高而降低,温度小于5℃时,溶解氧受温度影响不明显,当温度大于5℃时,溶解氧明显呈现随着水温的升高而降低的趋势;光照强度的增加使藻类等浮游植物的光合作用增强,进而使水中溶解氧含量升高;水深越深溶解氧含量越低;溶解氧在一定的pH范围内随着pH值的升高而升高;溶解氧随水体的透明度增加而增加。The relationship between dissolved oxygen and influencing factors（water temperature,water depth,light intensity,pH and water transparency）in water of the Baiyang Lake are studied.Dissolved oxygen increases as water temperature increases.When water temperature is less than 5℃,this influence on dissolved oxygen is not obvious.When water temperature is greater than 5℃,this influence on dissolved oxygen is very obvious.The photosynthesis by phytoplankton such as algae would be strengthened if light intensity increases,and dissolved oxygen increases accordingly.The deeper the water depth of the Baiyang Lake,the lower the dissolved oxygen in water.Dissolved oxygen will increase with the increase in pH in a certain pH range.Dissolved oxygen will increase if water transparency increases.

关 键 词：溶解氧 水温 水深 光照强度 透明度 

分 类 号：X524[环境科学与工程—环境工程]