Effect of Eichhornia crassipes plantation on water quality in the Dianchi Lake
WU Fu-qin, SHEN Shi-kang, WANG Yue-hua*, FENG Xiu-yan, WANG Qian, WANG Zu-tao, HE Shu-zhuang
1. Plant Science Institute, School of Life Sciences, Yunnan University, Kunming 650091, China; 2. Institute of Environmental Sciences and Ecological Restoration, Yunnan University, Kunming 650091, China
It is increasingly recognized that planting Eichhornia crassipes is one of effective methods for polluted water purification and aquatic ecosystem restoration. In order to explore the integrative impact of E. crassipes cultivation on water environment quality, we monitored water environment quality in E. crassipes planting area in the Dianchi Lake from April 2010 to March 2011, by comparing with the control group (non-planting E. crassipes). The results showed that E. crassipes cultivation reduced water pH value, transparency, light intensity, and dissolved oxygen. However, E. crassipes cultivation increased the content of S2- compared with the control areas. Meanwhile, the influence of E. crassipes cultivation on water environment quality had a monthly fluctuation and it might be related to the growth characteristics of E. crassipes. Our results provide a scientific basis for the control of ecological safety when planting large area of E. crassipes for water purification and aquatic ecosystem restoration.
吴富勤, 申仕康, 王跃华*, 冯秀彦, 王茜, 王祖涛, 和树庄. 凤眼莲种植对滇池水体环境质量的影响[J]. , 2013, 32(1): 110-114.
WU Fu-qin, SHEN Shi-kang, WANG Yue-hua*, FENG Xiu-yan, WANG Qian, WANG Zu-tao, HE Shu-zhuang. Effect of Eichhornia crassipes plantation on water quality in the Dianchi Lake. , 2013, 32(1): 110-114.