水土资源

南疆地区水资源承载力及子系统耦合协调性时空格局

  • 赵豫芝 ,
  • 杨建军
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  • 新疆大学生态与环境学院,新疆 乌鲁木齐 830046
赵豫芝(1996-),女,硕士研究生,主要研究方向为干旱区水资源可持续利用. E-mail: 1542879382@qq.com
杨建军. E-mail:yjjdfly@sina.com

收稿日期: 2022-09-01

  修回日期: 2022-11-22

  网络出版日期: 2023-03-08

基金资助

自治区国土空间生态修复规划专题研究(二标段)新疆陆地生态系统修复策略和空间布局专题研究(202105140022)

Spatio-temporal pattern of water resource carrying capacity, coupling and coordination of subsystems in southern Xinjiang

  • Yuzhi ZHAO ,
  • Jianjun YANG
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  • School of Ecology and Environment, Xinjiang University, Urumqi 830046, Xinjiang, China

Received date: 2022-09-01

  Revised date: 2022-11-22

  Online published: 2023-03-08

摘要

南疆地区先天缺水和后天用水的供需矛盾源于自然经久的积累和生产活动对生态环境的影响及破坏,改善供、需水的矛盾需制定科学完善的用水方案。针对南疆地区水资源供需现状,基于水资源、社会经济和生态环境三个方面,构建包含24个指标的南疆地区水资源承载力评价指标体系,基于熵权-TOPSIS法和耦合协调度模型,定量评价2005—2020年南疆地区水资源承载力和子系统间耦合协调度时空演化过程。结果表明:(1) 南疆地区水资源承载力水平整体偏低,巴州地区水资源承载力情况较好,阿克苏和喀什地区呈波动上升趋势。克州和和田地区整体呈先下降后缓慢上升趋势。(2) 南疆地区耦合协调度呈上升趋势,但处于低水平耦合阶段(0.2<D<0.5),其中巴州地区耦合协调度最高。(3) 南疆地区耦合协调度呈现东部优于中部和西部趋势,巴州地区耦合协调水平最好,克州地区上升较为缓慢,其余三地州变化速率相似,增长趋势稳定。

本文引用格式

赵豫芝 , 杨建军 . 南疆地区水资源承载力及子系统耦合协调性时空格局[J]. 干旱区研究, 2023 , 40(2) : 213 -223 . DOI: 10.13866/j.azr.2023.02.06

Abstract

The contradiction between supply and demand of congenital water shortage and acquired water supply in southern Xinjiang stems from the natural accumulation over time and the effects of human long-term production activities on the ecological environment, including its destruction. It is necessary to formulate a scientific and perfect water use plan to improve the contradiction between supply and demand. In order to assess the current state of water supply and demand in southern Xinjiang, a water resource carrying capacity evaluation index system based on the three aspects of water resources, social economy, and ecological environment was constructed using 24 indicators. The spatio-temporal evolution of water resource carrying capacity and coupling coordination between subsystems in southern Xinjiang from 2005 to 2020 was quantitatively evaluated based on the entropy weight-TOPSIS method and coupling coordination model. The results show that: (1) The overall carrying capacity of water resources in southern Xinjiang is low, and the carrying capacity of water resources in Bayingol Mongolian Autonomous Prefecture is good, however, the variation range is wide and the trend is unsteady. The overall carrying capacity of water resources in the Aksu and Kashgar regions showed a fluctuating upward trend, with similar growth rates. Compared with 2005, the comprehensive evaluation value of water carrying capacity in the two regions increased by more than 40% in 2020. The overall water carrying capacity of Kyzylsukol Autonomous Prefecture and the Hotan area showed a fluctuating and decreasing trend first and then slowly rising. The water carrying capacity of resources in the Hotan area fluctuated greatly. (2) From 2005 to 2020, the water-socio-economic-ecological environment in southern Xinjiang was in a low-level coupling stage, indicating that the degree of correlation between various subsystems was poor, and in 2020, the coupling coordination degree transitioned from serious uncoordinated to the basic uncoordinated stage, showing an overall upward trend and large upward space. Among them, Bayingol Mongolian Autonomous Prefecture has the best level of coupling and coordination between subsystems, and the type of mild dysregulation recession has increased from the mild dysregulated recession type to the endangered dysregulated recession type. The coupling coordination level in the other four states increased from the level of moderate imbalance recession to the level of mild imbalance recession. Combined with the comprehensive evaluation values of water resources, socio-economic and ecological environment subsystems, Bayingol Mongol Autonomous Prefecture, Aksu region, and Kashgar region belong to the water resources lagging type. Kyzylsukol Autonomous Prefecture belongs to the socio-economic and ecological environment interaction lag type, and Hotan area belongs to the socio-economic lag type. (3) From the perspective of space, based on geographical differences, the coupling and coordination degree of the five prefectures in southern Xinjiang has a strong correspondence with it. The coupling coordination degree of water resources-socio-economic-ecological environment is better in the east than in the central and western regions. Bayingol Mongolian Autonomous Prefecture has the best level of coupling and coordination, and among the other four regions, Kyzylsukol Autonomous Prefecture has a slow increase in coupling and coordination due to its western border and complex geographical environment, while Aksu, Kashgar, and Hotan regions have similar change rates and stable growth trends.

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