| This article has been：Browse 1539Times Download 2230Times |
scan it! |
|
|
| DOI：10.13522/j.cnki.ggps.2020085 |
|
| Evaluating Carrying Capacity of Water Resources in the Rocky Desertification Regions in Yunnan Province |
|
LI Jixiao, FU Yuhong, ZHANG Daijie, DING Jianhong
|
|
1. Yunnan Institute of Water Resources and Hydropower Research, Kunming 650228, China;2. Biological Sciences College of Guizhou Normal University, Guiyang 550018, China;3. Huaxi Bureau of Water resources in Guiyang of Guizhou, Guiyang 550025, China
|
| Abstract: |
| 【Background】The increase in population and rapid socioeconomic development have combined to increase the demand for water. This has resulted in various detrimental impacts on the environment including water shortage and deterioration of aquatic and terrestrial ecosystems, such as the Karst regions in Yunnan province which make up approximately 1/3 of the total provincial area. Motivated by ecological system reconstruction proposed by Chinese government, there has been an increase in study on the carrying capacity of water resources against its population and socioeconomic development for different regions in Yunnan province.【Objective】 The objective of this paper is to analyse the carrying capacity of water resources in the rocky desertification regions in the province.【Method】The analysis was based on six typical rocky desertification regions in Yunnan: Wenshan, Qujing, Zhaotong, Honghe, Lijiang, Diqing. Water resources in each region were analysed using the fuzzy analytic hierarchy process and the fuzzy comprehensive evaluation method. The evaluation index system included four criterion layers and 24 indicators, with the four layers being social development, economic condition, environmental protection and water resources, respectively. The regional comprehensive score was calculated from the index weight and the evaluation matrix.【Result】The score of the carrying capacity of water resources in the rocky desertification areas was the highest under V2 grade. There was a significant difference in comprehensive scores between the six regions (p<0.05), with its maximum value being 0.501 in Lijiang and the minimum being 0.386 in Zhaotong.【Conclusion】Water resource utilization in the rocky desertification regions in Yunnan province has been moderately developed, and there is still room for further development. Development and utilization of water resources vary significantly between regions, with Lijiang being most abundant in water resources while Zhaotong was the least. These spatial variations should be taken into account in water resource planning and development |
| Key words: water resources capacity; Yunnan; rocky desertification areas; evaluation and analysis |
|
|
