| Cite this article: | 王紫媛,刘星月,王伟超,等.典型滇池湿地公园的水质评价与污染源分析[J].灌溉排水学报,0,():-. |
| wangziyuan,liuxingyue,wangweichao,et al.典型滇池湿地公园的水质评价与污染源分析[J].灌溉排水学报,0,():-. |
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| DOI： |
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| Water quality evaluation and pollution source analysis of typical Lake Wetland Parks around Dianchi Lake |
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wangziyuan, liuxingyue, wangweichao, liwei
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School of Geography and Ecotourism, Southwest Forestry University
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| Abstract: |
| 【Objective】Dianchi Lake is one of the key management points of the national "three rivers and three lakes", and the construction of Wetland Park plays an important role in purifying Dianchi Lake water body and maintaining the health of lake ecosystem. 【Method】Based on Single-factor pollution index method and three improved Nemerow pollution index methods, this paper evaluates the water quality of South Dianchi Wetland Park, Xihua Wetland Park and Laoyu River Wetland Park. The evaluation index system includes 8 water quality evaluation factors: COD, TN, TP, Zn, Ni, Pb, Cd and Cr, and analyzes the water pollution sources of the three wetland parks. 【Result】The results show that: (1) The pollution degree of COD, TN, TP and Cr in the three wetland parks is more serious, while the pollution degree of Zn, Ni, Pb and Cd is less. The content of metal elements in the water of Laoyu River Wetland Park is the lowest, but the concentration of TP is the highest. As a comparison, the concentration of TN and Cr in the water of South Dianchi Wetland Park is the highest, while the content of COD in the water of Xihua Wetland Park is the highest. (2) Based on Single-factor pollution index method method and three improved Nemerow pollution index methods for water quality analysis, the evaluation grade of the water quality of the three wetland parks is inferior to class V. On the whole, the water pollution of Laoyu River Wetland Park is the most serious, and the water pollution of South Dianchi and Xihua Wetland Park is slightly better. (3) COD and TP are the main types of pollutants entering the lake in the basins where the three wetland parks are located. 【Conclusion】In the future water quality protection and management of Dianchi Lake, attention should be paid to and the treatment of urban, agricultural non-point source and some uncollected point source pollution should be strengthened. |
| Key words: Wetland Park；Dianchi Lake；Water quality evaluation；Single factor evaluation method；Nemerow pollution index method；Pollution source |
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