Ecological engineering for eutrophication control in lake

Abstract

Abstract: An ecological engineering was conducted for eutrophication control in the Nanhu Lake of Changchun.In 1996,the removal of phosphorus by harvesting aquatic macrophytes and fishes was 149.6kg and 189.9kg,respectively,and the phosphorus fixed in molluscs was 153.4kg.The total output was 492.9kg,which amounted approximately to the annual phosphorus input of the lake.After ecological engineering,the water quality turned better,the TP concentration in lake water decreased,the phytoplankton density reduced,and the number of phytoplankton species increased.The roles of molluscs and fish in controlling lake eutrophication should be further studied.Ecological engineering is an ideal method to control the eutrophication of urban lakes.

Key words: Ecological engineering, Phosphorus, Lake, Eutrophication

CLC Number:

X171.4

SUN Gang, SHENG Lianxi . Ecological engineering for eutrophication control in lake[J]. Chinese Journal of Applied Ecology, 2001, (4): 590-592.

References

[1] Cai Q-H(蔡庆华).1993. Comprehensive evaluation of eutrophicationin Donghu Lake, Wuhan. Oceanol et Limnol Sin(海洋与湖沼),24(4):335～339(in Chinese)
[2] Chen S-L(陈少莲),Liu X-F(刘肖芳),Hua L(华俐).1991. Therole of silver carp and bighead in the cycling of nitrogen and phosphoras in the East Lake ecosystem. Acta Hydrobiol Sin(水生生物学报),15(1):8～26(in Chinese)
[3] Dai M(戴莽),Ni L-Y(倪乐意),Xie P(谢平)et al. 1999. Experimental studies on the effects of submersed macrophytes on the eutrophication of lake water using large-sized enclosures. Acta Hydrobiol(水生生物学报),23(2):97～101(in Chinese)
[4] Dai Y-Z(戴友芝),Tang S-Y(唐受印),Zhang J-B(张建波).2000.The distribution of zoobenthos species and bio-assessment of waterquality in Dongting Lake. Acta Ecol Sin(生态学报),20(2):277～282(in Chinese)
[5] Fan C-X(范成新).1997. Status, trend and comprehensive controlstrategies of Taihu Lake' s eutrophication. Shanghai Environ Sci(上海环境科学),16(8):4～7(in Chinese)
[6] Jin X-C(金相灿),Liu H-L(刘鸿亮),Tu Q-Y(屠清瑛)et al. 1990.Eutrophication of Chinese Lakes. Beijing:China Environmental SciencePress. 26～33(in Chinese)
[7] Jin X-C(金相灿),Tu Q-Y(屠清瑛).1990. Investigation Standardsfor Lake Eutrophication. Beijing:China Environmental Science Press.223～229(in Chinese)
[8] Kuang Q-J(况琪军),Xia Y-C(夏宜琤).1992. Algae in TaipinghuReservoir and its trophic level. Chin J Appl Ecol(应用生态学报),3(2):165～168(in Chinese)
[9] Lu W-X(卢文喜),ZhuT-C(祝廷成).1998. Artificial neural networkevaluation of lake eutrophication. Chin J Appl Ecol(应用生态学报),9(6):645～650(in Chinese)
[10] Pene J-X(彭近新).1988. Water Quality Eutrophication and Control.Beijing:China Environmental Science Press. 64～69(in Chinese)
[11] Pu P-M(濮培民),Wang G-X(王国祥),Hu C-H(胡春华)2000. Can we control lake eutrophication by dredging, J Lake Sci(湖泊科学),
[12](3):269～279(in Chinese)12.Shu J-H(舒金华).1993. Assessment of eutrophication in main lakes ofChina. Oceanal et Limnol Sin(海洋与湖沼),24(6):616～620(inChinese)
[13] Sun G(孙刚).1997.Studies on Energy Ecology in the Nanhu Lakeof Changchun [Ph. D. Dissertation]. Changchun:Northeast Normal U-niversity. 35～73(in Chinese)
[14] Sun G(孙刚),Sheng L-X(盛连喜),Feng J(冯江)etal.1999.Relationship between fishery and eutrophication in Chinese lakes. JNortheast Normal Univ(Natural Science)(东北师范大学学报自然科学版),(1):74～78(in Chinese)
[15] Wang J(王俊),Jiang J-X(姜建祥),Lu Y-K(吕耀坤)etal.1996.Evaluation and prevention of lakes and reservoirs nourishment in JilinProvince, China. J Lake Sci(湖泊科学),8(1):75～80(in Chinese)
[16] Xu L-H(徐立红),Chen G-S(陈国胜),Chen J-P(陈加平)1998. Toxic effects of microcystin on fish liver. Acta Hydrobiol Sin(水生生物学报),22(4):378～379(in Chinese)
[17] Yang Q-X(杨清心).1996. Algal bloom in Taihu Lake and its control.J Lake Sci(湖泊科学),8(1):67～74(in Chinese)
[18] Zhang K-X(张开翔).1992. On the artificial eutrophication of lakes.Trans Oceanol Limnol(海洋湖沼通报),(1):88～98(in Chinese)
[19] Zhang S-Y(张水元),Liu Q-X(刘衢霞),Huang Y-T(黄耀桐).1984.The main sources of nitrogen and phosphorus in Lake Donghu,Wuhan. Oceanol et Limnol Sin(海洋与湖沼),15(3):203～213(inChinese)
[20] Zhu X-R(祝心如),Yao W-X(姚渭溪),He F-Z(何芬珠)1993. Water pollution and eutrophication of the northwest part of theChaohu Lake. Oceanol et Limnol Sin(海洋与湖沼),24(2):191～196(in Chinese)