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- Title
海南岛工程性缺水限制性评.
- Authors
杨 波; 王 文; 秦大军; 刘容辰
- Abstract
Engineering water shortage is one of the main types of water shortage. In order to solve the shortage of evaluation methods of water shortage in engineering water shortage areas, as well as the problems of imperfect indicators and adaptability in the evaluation system, the in‐ dex of congenital conditions of engineering water supply based on GIS data and classification standard data analysis matrix are introduced, improved TOPSIS models are used to evaluate the engineering water shortage limitation on Hainan Island. At the same time, the obstacle de‐ gree model is constructed to analyze limiting factors. The results show that there is a weak evaluation grade in most cities and counties of Hainan Island, especially 1/3 of cities and counties such as Wenchang, Ding’an, Tunchang, Chengmai, Lingao and Changjiang are rated as“poor(II).”The analysis of obstacle degree model indicates that the lowest obstacle degree is the water production modulus, which means the supporting capacity of water resources in Hainan Island is strong. The top factors of obstacle degree mainly include river slope, water con‐ sumption per 10 000 yuan of GDP, irrigation water usage per unit area of cultivated land, water consumption per 10 000 yuan of industrial value-added and river network density. Further spatial difference analysis shows that the cities and counties in the middle and south of Hain‐ an Island have the highest obstacle degree of river slope and great difficulty in engineering water intake. The main limiting factors of cities and counties with“poor”evaluation grade are water consumption efficiency indicators such as water consumption of 10 000 yuan GDP, water consumption of 10 000 yuan industrial value-added and irrigation water usage per unit area of cultivated land. The restrictive evaluation method and index system of engineering water shortage studied and constructed can provide a supplement to the evaluation method of water resources shortage in engineering water shortage areas, and the obstacle degree model can provide a reference to solve the problem of engi‐ neering water shortage.
- Subjects
HAINAN Sheng (China); WATER-supply engineering; WATER consumption; WATER efficiency; WATER shortages; IRRIGATION water; WATER supply
- Publication
China Rural Water & Hydropower, 2022, Issue 12, p121
- ISSN
1007-2284
- Publication type
Article
- DOI
10.12396/znsd.220301