Coupled Coordination of Land and Water Use Efficiency in Huaihe River Basin and Its Spatial and Temporal Divergence

He Gang; Zhang Shiyu; Bao Keyu; Yang Xia; Hou Xiaoyu

doi:10.13961/j.cnki.stbctb.2023.04.034

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Coupled Coordination of Land and Water Use Efficiency in Huaihe River Basin and Its Spatial and Temporal Divergence

- Coupled Coordination of Land and Water Use Efficiency in Huaihe River Basin and Its Spatial and Temporal Divergence
- Bulletin of Soiland Water Conservation Vol. 43, Issue 4, Pages: 283-293(2023)
- 作者机构：
  
  安徽理工大学经济与管理学院,安徽,淮南,232001
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2023.04.034
  CLC： F124.5
- Published：2023
- 稿件说明：
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He Gang, Zhang Shiyu, Bao Keyu, et al. Coupled Coordination of Land and Water Use Efficiency in Huaihe River Basin and Its Spatial and Temporal Divergence[J]. Bulletin of Soiland Water Conservation, 2023, 43(4): 283-293.
DOI：

He Gang, Zhang Shiyu, Bao Keyu, et al. Coupled Coordination of Land and Water Use Efficiency in Huaihe River Basin and Its Spatial and Temporal Divergence[J]. Bulletin of Soiland Water Conservation, 2023, 43(4): 283-293. DOI： 10.13961/j.cnki.stbctb.2023.04.034.

摘要

[目的] 科学评价淮河流域土地资源与水资源利用效率，明晰两者间耦合协调程度及其空间分异特征，为提高该流域土地资源与水资源利用效率，促进水土资源良性协调发展提供理论参考。[方法] 利用Super-SBM模型测算淮河流域30个市土地与水资源利用效率，构建耦合协调度模型，探讨两者协调发展情况，采用标准差椭圆和Dagum基尼系数法，分析两者耦合协调度的空间偏移程度及空间分异来源。[结果] ①研究期内，淮河流域土地与水资源利用效率均呈波动上升趋势，空间异质性显著。②2011—2014年，两者耦合协调度整体处于勉强协调阶段，2015—2020年，基本处于初级协调及中级协调阶段，均以水资源利用效率滞后为主，逐渐呈现“东西部高，中部低”的空间格局。③淮河流域西北和东南方向城市的土地与水资源利用效率耦合协调度的增速较快，且存在强弱交替现象。④两者耦合协调度总体差异呈下降趋势，空间分异主要来源于超变密度，其次为地区间分异。[结论] 淮河流域城市土地资源与水资源利用效率不高，耦合协调度也较低，各城市应加强水土资源的高效集约利用，提高两者间耦合协调度，为实行区域差异化资源开发战略提供决策依据。

Abstract

[Objective] The utilization efficiency of land and water resources in the Huaihe River basin was evaluated to clarify the degree of coupling and coordination between the two and their spatial differentiation characteristics

in order to provide a theoretical reference for improving the utilization efficiency of land and water resources and promoting the benign and coordinated development of land and water resources in the basin. [Methods] The Super-SBM model was used to measure the land and water resource utilization efficiencies of 30 cities in the Huaihe River basin. The coupling coordination degree model was constructed to discuss the coordinated development of the two. The standard deviation ellipse and the Dagum Gini coefficient method were used to analyze the spatial deviation degree and spatial differentiation source of the coupled coordination degree. [Results] ① During the study period

the utilization efficiency of land and water resources in the Huaihe River basin showed a fluctuating upward trend

and the spatial heterogeneity was significant. ② From 2011 to 2014

the degree of coupling and coordination between the two factors was in the barely coordinated stage. From 2015 to 2020

the degree of coupling and coordination was basically in the primary coordination and intermediate coordination stage

both of which were dominated by the lag of water resource utilization efficiency. A spatial pattern of “higher in the east and west

and lower in the middle” was gradually presented. ③ The coupling and coordination degree of land and water resource utilization efficiency in the northwest and southeast cities of the Huaihe River basin increased rapidly

and there was a phenomenon of strong and weak alternation. ④ The overall difference of the coupling coordination degree between the two showed a downward trend

and the spatial differentiation mainly came from the hypervariable density

followed by regional differentiation. [Conclusion] The utilization efficiencies of urban land resources and water resources in the Huaihe River basin were not high

and the coupling coordination degree was also low. Cities should strengthen the efficient and intensive use of water and land resources

improve the coupling coordination degree between the two

and provide a decision-making basis for the implementation of differentiated resource development strategies in various regions.

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