水生生物群落结构完整性对水环境的影响  

Effect of Aquatic Communities' Integrity on Water Environment

作　　者：薛同来[1] 佟素娟[1] 张为堂[1] 田彩云[1] 孟庆义 侯达 邱彦召 XUE Tonglai;HOU Da;QIU Yanzhao;TONG Sujuan;ZHANG Weitang;TIAN Caiyun;MENG Qingyi(College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124,China;Beijing Hydraulic Research Institute, Beijing 100048,China)

机构地区：[1]北京工业大学环境与能源工程学院,北京100124 [2]北京市水科学技术研究院,北京100048

出　　处：《北京工业大学学报》2016年第10期1540-1546,共7页Journal of Beijing University of Technology

基　　金：北京市科技计划资助项目(Z121100000312097)

摘　　要：为了探究水生生物群落的自我维持能力以及恢复能力,通过人工构建水生生物群落,考察了关键水环境指标对群落要素的种类和密度的响应.结果表明:人工构建的水生生态系统可改善水质,提升透明度,降低高锰酸钾指数、叶绿素a、浮游动植物密度等指标,效果良好,但对总氮和总磷影响不显著;放养密度影响人工生态系统的水质净化能力,低放养密度(鱼类25.0 g/m^3,蚌1.0 g/L)时优于高放养密度(鱼类50.0 g/m^3,蚌2.0 g/L)时;狐尾藻和金鱼藻有助于提升鱼蚌系统的水质净化效能.An aquatic community was built artificially to explore its self-maintenance and resilience capability. Responses of key water environmental indicators to diversified varieties and densities of the aquatic community were investigated. Results show that the artificial aquatic system is efficient in improving water quality with increasing transparency and decreasing permanganate index ( CODMn ) ,chlorophyll-a , densities of zooplankter and phytoplankton, while no influences on TN ( total nitrogen)and TP (total phosphorus) in the tested water were observed. Stocking density of fish and mussel impacted the efficiency of the artificial aquatic community on its water quality improving capacity with lower density (fish at 25. 0 g/m3 and mussel at 1. 0 g/ L ) , taking advantage over higher density ( fish at 50. 0 g/m3 and mussel at 2. 0 g/ L ). Myriophyllum spicatum and ceratophyllum demersum contributed to enhance the efficiency of the fish-mussel system in improving water quality.

关 键 词：水生生态系统 群落结构完整性 放养密度 水环境 

分 类 号：Q89[生物学]