Study on the Trade-Off and Synergy Between Agricultural Water–Soil Matching and Ecosystem Service Value in the Tailan River Irrigation District of Xinjiang

Yufan Ruan, Ying He (), Yue Qiu and Le Ma
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Yufan Ruan: College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China
Ying He: College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China
Yue Qiu: College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China
Le Ma: College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China

Sustainability, 2025, vol. 17, issue 9, 1-25

Abstract: Xinjiang is located in an inland arid area, and it faces significant challenges in water resource supply and demand, with a fragile ecological environment. Exploring the internal relationship between the time–space distribution of agricultural water–soil matching and the evolution of the ecosystem service value (ESV) in the Tailan River Irrigation District of Xinjiang from 2000 to 2020, this study provides theoretical guidance for the balance of agricultural water–soil resources and the healthy and sustainable development of the ecological environment in the irrigation district. By integrating the water–soil matching coefficient and the equivalent factor method, the spatiotemporal distribution of agricultural water–soil matching and the spatiotemporal evolution of the ESV under the change of land use (LU) in the irrigation district are analyzed. Based on the Pearson correlation, the trade-off synergy between the two is explored. The results show that the following occurred in the past 20 years: (1) Grassland and dryland are the two categories of land with the biggest transfer-out and transfer-in areas in the Tailan River Irrigation District, and the conversion areas are mostly in Jiamu Town and Guleawati Township. (2) The area and reclamation rate of the irrigation district increased gradually, among which the highest reclamation rate was 85.93% in Kezile Town and the lowest was 76.37% in Guleawati Township. The average Gini coefficient of agricultural water–soil in the irrigation district is 0.118, which is absolutely fair. (3) Kezile Town has the highest agricultural water consumption, but the matching of agricultural water–soil always fluctuates between the best and the worst. The agricultural water consumption in Communist Youth League Town is the lowest, but the matching of agricultural water–soil has remained the best for many years. (4) The ESV of the irrigation district showed an overall increasing trend, from CNY 243 million in 2000 to CNY 678 million in 2020; in addition, soil conservation, hydrological regulation, grassland, and dryland contributed the most to ESV in each period. (5) There was a significant trade-off relationship between agricultural water–soil matching and ecosystem services in the Tailan River Irrigation District, while there was a significant synergistic relationship between ecosystem services.

Keywords: Tailan River Irrigation District; land use change; agricultural water–soil matching; ecosystem service value (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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