Title: Ecological environment assessment of Nanhe National Wetland Park, Sichuan, China based on remote sensing ecological index

Authors: Gao Fei; Li Nana; Xiao Lin; Huang Congde

Addresses: Sichuan University, No. 24, First Ring Road South Section, Chengdu City 610207, Sichuan Province, China; Sichuan Forestry and Grassland Survey and Planning Institute, No. 4, Renmin North Road Section 1, Chengdu City 610000, Sichuan Province, China ' National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River, Sichuan Province Key Laboratory of Ecological Forestry Engineering on the Upper Reaches of the Yangtze River, College of Forestry, Sichuan Agricultural University, No. 211, Huimin Road, Chengdu City 611130, Sichuan Province, China; Sichuan Forestry and Grassland Survey and Planning Institute, No. 4, Renmin North Road Section 1, Chengdu City 610000, Sichuan Province, China ' National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River, Sichuan Province Key Laboratory of Ecological Forestry Engineering on the Upper Reaches of the Yangtze River, College of Forestry, Sichuan Agricultural University, No. 211, Huimin Road, Chengdu City 611130, Sichuan Province, China ' National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River, Sichuan Province Key Laboratory of Ecological Forestry Engineering on the Upper Reaches of the Yangtze River, College of Forestry, Sichuan Agricultural University, No. 211, Huimin Road, Chengdu City 611130, Sichuan Province, China

Abstract: Wetland parks are built to protect the ecological environment of the wetland, the evaluation of the ecological function of wetland parks is important and the result depends largely on the evaluation index. The remote sensing ecological index (RSEI) was imported into our study for the ecological environmental evaluation of Nanhe National Wetland Park, Sichuan, China. As a result, the area proportion with 'excellent' or 'good' ecological environmental conditions of the wetland park is 24.37%, 48.23% and 59.07% before, during and after the building of the park, respectively, which imply an improvement of the wetland park. In total, 55.29% area of the wetland park's ecological environmental condition improves, most of which are forest areas. In the meanwhile, 19.41% area was deteriorated, which is mainly due to the construction of roads and buildings. This work shows that building a wetland park is a very useful measurement to improve the local environment.

Keywords: ecological environment assessment; remote sensing ecological index; RSEI; wetland park; China.

DOI: 10.1504/IJGENVI.2023.136299

International Journal of Global Environmental Issues, 2023 Vol.22 No.4, pp.403 - 417

Accepted: 19 Jun 2023
Published online: 26 Jan 2024 *

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