| 摘要: |
On the basis of nine-time current situation investigation for eutrophication of Taihu Lake during 1991-1995, this paper evaluated the trophic levels in the different periods and analyzed the development of the main nutrient content in the nearest 35 years. The results show that the trophic level of Taihu Lake is in the transition state from meso-eutrophic to eutrophic. The eutrophhic and hypereutrophic waters account for 10% or so. The limiting nutrient, P, rises most rapidly, which causes the ratio of N:P to decrease. The increase of P content is still one of the main factors giving rise to the eutrophication of Taihu. Lake
Some proposals of comprehensive countermeasure for the eutrophication are put forward. They include the pollution source control of the basin, the littoral multiple management, optimal dispatch of water conservancy facilities, the engineering of helping Taihu Lake with diversion of the Changjiang River, and as well as the setting of the water quality protection and legal system. |
| 关键词: Lake Taihu eutrophication history and current situation comprehensive control |
| DOI：10.18307/1998.sup11 |
| 分类号: |
| 基金项目: |
|
| On the Problem of the Eutrophication of Taihu Lake and Its Countermeasures of Comprehensive Control |
|
FAN Chengxin1, CHEN Hesheng2
|
|
1.Nanjing Institute of Geography and Limnology, CAS, Nanjing 210008, China;2.Taihu Basin Water Resource Protection Bureau, Shanghai 200434, China
|
| Abstract: |
On the basis of nine-time current situation investigation for eutrophication of Taihu Lake during 1991-1995, this paper evaluated the trophic levels in the different periods and analyzed the development of the main nutrient content in the nearest 35 years. The results show that the trophic level of Taihu Lake is in the transition state from meso-eutrophic to eutrophic. The eutrophhic and hypereutrophic waters account for 10% or so. The limiting nutrient, P, rises most rapidly, which causes the ratio of N:P to decrease. The increase of P content is still one of the main factors giving rise to the eutrophication of Taihu. Lake
Some proposals of comprehensive countermeasure for the eutrophication are put forward. They include the pollution source control of the basin, the littoral multiple management, optimal dispatch of water conservancy facilities, the engineering of helping Taihu Lake with diversion of the Changjiang River, and as well as the setting of the water quality protection and legal system. |
| Key words: Lake Taihu eutrophication history and current situation comprehensive control |
