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Construction of a Near-Natural Estuarine Wetland Evaluation Index System Based on Analytical Hierarchy Process and Its Application
- Source :
- Water, Vol 13, Iss 2116, p 2116 (2021), Water, Volume 13, Issue 15
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- Nutrients carried in upstream rivers to lakes are the main cause of eutrophication. Building near-natural estuarine wetlands between rivers and lakes is an effective way to remove pollutants and restore the ecology of estuarine areas. However, for the existing estuarine wetland ecological restoration projects, there is a lack of corresponding evaluation methods and index systems to make a comprehensive assessment of their restoration effects. By summarizing a large amount of literature and doing field research, an index system was constructed by combining the characteristics of the near-natural estuarine wetlands themselves. It covered environmental benefits, technical management and maintenance, and socio-economic functions, and contained 3 systems, 7 criteria, and 16 indicators. The analytical hierarchy process (AHP) was used to determine the weights of each indicator. The top 5 indicators in order of importance were habitat diversity, total phosphorus (TP), coverage of aquatic plants, ammonia nitrogen (NH3-N), and adaptation to the surrounding landscape. The above evaluation system was used for the comprehensive evaluation of the water purification project in the Fuhe estuarine wetland, Hebei Province, as an example. The results showed that the comprehensive score of the Fuhe estuarine wetland at this stage was 4.1492, and the evaluation grade was excellent. The effect of water purification and ecological restoration was good, and the selected technology was suitable and stable in operation. It had a greater positive impact on the surrounding economy and society and can be promoted and applied. The research results were important for clarifying the advantages and defects of the project and developing efficient and advanced restoration technologies.
- Subjects :
- 010504 meteorology & atmospheric sciences
Geography, Planning and Development
Analytic hierarchy process
Fuhe estuarine wetland
010501 environmental sciences
Aquatic Science
01 natural sciences
Biochemistry
Aquatic plant
Technical management
Restoration ecology
TD201-500
0105 earth and related environmental sciences
Water Science and Technology
Pollutant
Water supply for domestic and industrial purposes
Hydraulic engineering
analytical hierarchy process
Habitat
engineering evaluation
Environmental science
Stage (hydrology)
Eutrophication
Water resource management
TC1-978
water purification
Subjects
Details
- Language :
- English
- ISSN :
- 20734441
- Volume :
- 13
- Issue :
- 2116
- Database :
- OpenAIRE
- Journal :
- Water
- Accession number :
- edsair.doi.dedup.....e6a01bfaaa972a754c8fb06193a9a1b2