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Arid Land Geography ›› 2024, Vol. 47 ›› Issue (5): 820-829.doi: 10.12118/j.issn.1000-6060.2023.496

• Climatology and Hydrology • Previous Articles     Next Articles

Coupling relationship and influencing factors of water-cropland-grain-cotton system in Tarim River Basin

LU Quan1,2(), GAO Huayan2, WANG Pengpeng2, FENG Xiaolin3, YANG Yanxia2()   

  1. 1. College of Economics and Management, Huazhong Agricultural University, Wuhan 430077, Hubei, China
    2. College of Economics and Management, Tarim University, Aral 843300, Xinjiang, China
    3. College of Economics, Xinjiang Institute of Science and Technology, Korla 841000, Xinjiang, China
  • Received:2023-09-11 Revised:2023-11-21 Online:2024-05-25 Published:2024-05-30
  • Contact: YANG Yanxia E-mail:luquan0122@163.com;17809971661@163.com

Abstract:

In the arid and ecologically sensitive Tarim River Basin, a vital hub for grain and cotton production in China, the harmonious development of water, arable land, and agricultural resources is crucial for sustainable growth. This study constructs a water-cropland-grain-cotton system model for the basin, evaluates its development index, and assesses the system’s coupling coordination using a coupling coordination degree model. Furthermore, the Fractional Logit model was employed to identify factors influencing the system’s coordinated development. The findings reveal that: (1) The development indices indicate a hierarchy of water system>water-cropland-grain-cotton system>cropland system>grain-cotton system. Post-2013, the development index of the cropland system in Aksu and Kashgar Prefetures surged, surpassing those of the combined water-cropland-grain-cotton system and the individual water system. Changes in other areas were minimal. (2) The coordination level of the basin’s coupled system ranges from 0.475 to 0.680, indicating a transition from minimal to basic coordination. Kashgar exhibits the highest coordination, while Kizilsu Kirgiz Autonomous Prefecture the lowest. This index, after an initial gradual increase, experienced a notable decline post-2017, particularly in the Aksu Prefecture. (3) The number of reservoirs, general public budget expenditure, and population size emerge as critical factors influencing the system’s coordination. An increase of one unit in these variables corresponds to a rise in the coupling coordination degree by 1.0%, 21.0%, and 35.6%, respectively.

Key words: water-cropland-grain-cotton, development index, coupling relationship, influence factor analysis