湖水源热泵系统冷排水对浮游植物影响试验研究  

Effects of Cold Discharge of Lake Water Source Heat Pump Systems on Lake Phytoplankton

作　　者：周健[1] 黄向阳[1,2] 刘杰[1] 

机构地区：[1]重庆大学三峡库区生态环境教育部重点实验室,重庆400030 [2]长江大学城市建设学院,湖北荆州434023

出　　处：《土木建筑与环境工程》2010年第1期116-119,130,共5页Journal of Civil,Architectural & Environment Engineering

基　　金：国家"十一五"科技支撑计划项目(2007BAB21B03-1)

摘　　要：针对湖泊热环境容量小，生态系统脆弱的特征，以三峡库区重庆段湖泊水体为研究对象。采用物理模拟的方法，对湖水源热泵系统冷排水对湖泊藻类及叶绿素含量的影响进行了系统的研究。结果表明：冷排水对藻类总量增长有明显抑制作用，试验水体藻类正负增长的临界温度在4．5～6．2℃之间；冷排水对湖泊优势藻类种群及比例变化有较为明显的影响，并且会使藻类种群数减少；冷排水显著降低湖泊叶绿素a的含量，对浮游植物总量增长有较大影响，且原水氮磷含量越高其影响程度也越大。According to small environmental capacity and fragile ecosystem of lake, the lakes in Chongqing Section of Three Gorges Reservoir Region were taken as a case. The effects of cold water discharge of lake water source heat pump systems on lake algae and Chla were studied with the method of physical simulation. It was found that cold discharge discouraged the growth of algae, and the critical temperature of algae growth was between 4.5℃ and 6.2℃. There was significant impact of cold discharge on dominant populations and its proportional change of algae. And it would reduce the number of algal populations and the content of Chla. Furthermore, the cold discharge would have great influence on total quantity of phytoplankton. And the higher the content of nitrogen and phosphorus of raw water was, the greater of the effect extent was.

关 键 词：水源热泵 湖泊 冷排水 浮游植物 影响 

分 类 号：X503[环境科学与工程—环境工程]