| 滇池草海底泥疏挖对水体水质及底泥影响分析研究 |
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| 引用本文： | 安琪,李发荣.滇池草海底泥疏挖对水体水质及底泥影响分析研究[J].云南地理环境研究,2002,14(2):65-69. |
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| 作者姓名： | 安琪 李发荣 |
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| 作者单位： | 1. 云南省,环境科学研究所,云南,昆明,650034
2. 昆明市,环境监测中心,云南,昆明,650035 |
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| 摘 要： | 1998年 5月起 ,滇池草海经过近 1年的疏挖 ,清除底泥约 4 0 0× 10 4 m3,使内草海水体质量有明显改善。内湖底质的有机污染物及金属污染物得到有效去除 ,减少了泥层中污染物向水体的扩散 ;大部分水体透明度达到 0 .8m ,已超过沉水植物恢复的需补偿深度 ,为草海水生态恢复创造了条件 ;疏浚区水深增加 ,湖容扩大 ,提高了草海的调蓄能力。但与外草海及外滇池对照点底泥相比 ,草海底泥金属污染物含量仍处较高水平
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| 关 键 词： | 滇池草海 水质 底泥疏挖 水体 有机污染物 金属污染物 |
| 文章编号： | 1001-7852(2002)02-0065-05 |
| 修稿时间： | 2002年4月8日 |
ANALYSIS OF INFLUENCE ON WATER QUALITY AND SEDIMENT OF THE INTERNAL LAKE OF DIANCHI LAKE DUE TO SEDIMENT DIGGING |
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| AN Qi ,? LI Fa-rong.ANALYSIS OF INFLUENCE ON WATER QUALITY AND SEDIMENT OF THE INTERNAL LAKE OF DIANCHI LAKE DUE TO SEDIMENT DIGGING[J].Yunnan Geographic Environment Research,2002,14(2):65-69. |
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| Authors: | AN Qi ? LI Fa-rong |
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| Institution: | AN Qi 1,? LI Fa-rong 2 |
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| Abstract: | From May 1998, the sediment with the volume of 40 million m 3 was dug out from the internal lake of Dianchi Lake by one year, which made water quality much improved. The organic pollution materials and metal pollution material of the internal lake sediment were cleared up efficiently, which reduced diffusiou from pollution materials of the sediment to the water body. Transparency of the most water body reached the depth of 0.8 m, which exceeded the depth needed by submerged plants recovering. The water depth in the dredged area and the volume of the lake were increased. However, the content of the metal polluter in the inner internal lake is still bigger than those in the outer areas of the lake. |
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| Keywords: | Dianchi Lake sediment digging influence on water body |
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