JOURNAL OF NATURAL RESOURCES ›› 2021, Vol. 36 ›› Issue (2): 372-383.doi: 10.31497/zrzyxb.20210208

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Characteristics of water resources in the southern part of the Lyuliang Mountainous Poverty-stricken Area

SUN Cong-jian1(), JIA Yan-wen1, LI Xin-gong1(), ZHANG Yong-qing1, SUN Jiu-lin1,2   

  1. 1. School of Geographical Sciences, Shanxi Normal University, Linfen 041000, Shanxi, China
    2. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
  • Received:2019-06-12 Revised:2019-08-28 Online:2021-02-28 Published:2021-04-28
  • Contact: LI Xin-gong E-mail:suncongjian@sina.com;418962304@qq.com

Abstract:

In order to realize the optimal allocation of regional water resources and the coordinated and sustainable development of regional economy, society and water resources, and to ascertain the physical quantity of regional water resources, this paper chose the southern part of the Lyuliang Mountainous Contiguous Poverty-stricken Area, where the water resources ecology is extremely fragile, as a case study. Based on the actual water resources data from 2008 to 2017, we compiled the regional water resources physical quantity and analyzed the spatial and temporal distribution characteristics of water resources. The results show that: (1) The physical quantity of water resources in the study area showed a significant increasing trend during the study period, with the growth value (including their duplicate) as high as 6101×104 m3. During the study period, the physical stock of surface water increased fast, while the physical stock of groundwater increased slowly. The water consumption in the primary industry increased significantly, which was caused by large-scale promotion of high-water-consumption fruit trees in the region; (2) Residents' water consumption increased significantly, and the per capita water consumption increased rapidly. Residents' water consumption is the main factor affecting the physical stock of local water resources. (3) A larger difference in spatial distribution of water resources can be observed in the study area. The average stock of water resources between counties differs by a maximum of 3971.4 m3; the average water resources per unit area and the actual use of water resources per unit area are the highest in Xixian county, but the lowest in Jixian county. The per capita living water consumption is the highest in Xixian county, while the per capita living water consumption is the least in Fenxi county. (4) There is a high correlation between actual water consumption and total water resources, and the stock of water resources restricts the actual use of water resources to a certain extent. The results of this study have important scientific guiding significance for the optimal allocation of regional water resources and the realization of poverty alleviation in contiguous poverty-stricken areas of the Lyuliang Mountains.

Key words: Lyuliang Mountainous Poverty-stricken Area, physical quantity accounting of water resources, physical scale of water resources, spatial and temporal distribution