Coupling coordination and spatiotemporal differences between water resources and agriculture cropping system in Xinjiang: A case of grain and cotton cropping systems
Received date: 2022-06-25
Revised date: 2022-10-27
Online published: 2023-03-31
This study takes the grain and cotton cropping systems as an example to measure the development level of the water resource and agricultural cropping systems in Xinjiang, China to study its water resource endowment and agriculture industry development, respectively. Additionally, the two systems are combined to further analyze the coupling coordination and spatiotemporal differences of the water resources-agriculture cropping composite system (abbreviated composite system) in Xinjiang. Therefore, data related to water resources and agriculture cropping of 14 prefectures in Xinjiang from 2005 to 2019 were selected to measure the comprehensive development index of water resources, agriculture cropping, and composite systems using the entropy method. On the basis of the comprehensive development index of the composite system, this study further explores the coupling coordination trend and spatiotemporal evolution law of the composite system using the coupling coordination degree model and exploratory spatial data analysis, respectively. The following results are presented. (1) The comprehensive development index of the composite system in Xinjiang is spatially characterized by “high in the middle and low on both sides”. Among them, the level of comprehensive development index of the water resources system is higher than that of the agriculture cropping system and the growth trend of the agricultural plantation system is fast. Comparing the results of the composite development index of water resources and agriculture cropping systems from 2005 to 2019, this study found that the former has been developing at a higher level than the latter during the study period. However, the latter showed a faster growth trend than the former, resulting in a gradual reduction in the gap between the two systems. (2) The overall level of coupling coordination of composite systems in Xinjiang shows a development trend of “high in the north and low in the south, but the gap is gradually decreasing”. Additionally, the agriculture cropping system has gradually become a shortcoming that hinders the development of the coupling coordination of composite systems due to the differences among regions. (3) A significant spatial clustering characteristic of the coupling coordination degree of the composite system is also observed in Xinjiang, but its positive correlation shows a changing trend from strong to weak. The spatial clustering type is mainly “high-high and low-low” clustering, and the coupling coordination degree of the composite system shows spillover effects and is easily influenced by the neighboring areas. The results of this study have theoretical and practical implications for the sustainable use of water resources, the development of the agriculture cropping industry, and the benign coordination of the two in Xinjiang.
Ning ZHANG , Zichen WANG , Xiao YANG , Tong CHEN , Fei XING . Coupling coordination and spatiotemporal differences between water resources and agriculture cropping system in Xinjiang: A case of grain and cotton cropping systems[J]. Arid Land Geography, 2023 , 46(3) : 349 -359 . DOI: 10.12118/j.issn.1000-6060.2022.315
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