| 利用生态工程降低湖体含磷量的研究 |
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| 引用本文： | 孙刚,王振堂.利用生态工程降低湖体含磷量的研究[J].云南环境科学,2000,19(Z1):127-129. |
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| 作者姓名： | 孙刚 王振堂 |
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| 作者单位： | 东北师范大学国家草地生态工程实验室!吉林长春130024 |
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| 基金项目： | 吉林省自然科学基金!资助项目 ( 0 91 0 30 6) |
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| 摘 要： | 在长春南湖实施了生态工程以降低湖体含磷量。 1 996年 ,通过收获水生高等植物和鱼产品带出湖体的磷量分别为 1 49 6kg和 1 89 9kg ,蚌体生长固定的磷量为 1 53 4kg ,三者合计 4 92 9kg ,与湖体每年纳磷量大体持平。实施生态工程后 ,水质明显好转 ,湖水中的总磷浓度逐年下降 ,浮游植物个体密度减小、种类数增加。
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| 关 键 词： | 生态工程 磷 湖泊富营养化 |
| 修稿时间： | 2000-04-17 |
Study on Decreasing Phosphorus Content in Lake by Ecological Engineering |
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| Sun Gang,Wang Zhentang.Study on Decreasing Phosphorus Content in Lake by Ecological Engineering[J].Yunnan Environmental Science,2000,19(Z1):127-129. |
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| Authors: | Sun Gang Wang Zhentang |
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| Abstract: | Ecological engineering has
been conducted to decrease phosp horus content in the Nanhu Lake of Changchun.In
1996,removal contents of phospho rus from lake by harvesting aquatic macrophytes and
fishes were 149.6kg and 189 .9kg,phosphorus fixed mussels was 153.4kg,the total was
492.9kg,which approxi mately equals to the phosphorus accommodated in the lake.Through
ecological engi neering,water quality turns better,TP concentration in lake water
decreased,phyt oplankton density reduced and the number of phytoplankton species
increased.The roles of mussels and fish in controlling lake eutrophication should be
further s tudied. |
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| Keywords: | ecological engineering phosphorus lake eutrophication |
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