| Simulation of soil water and salt migration and crop growth under film drip irrigation with different water salinity in cotton filed |
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| DOI：10.7606/j.issn.1000-7601.2024.01.11 |
| Key Words: cotton drip irrigation SWAP model water and salt migration crop growth numerical simulation |
| Author Name | Affiliation | | KONG Chunxian | College of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832003, China
Key Laboratory of Cold and Arid Regions Eco\|Hydraulic Engineering of Xinjiang Production & Construction Corps,Shihezi, Xinjiang 832003, China
Key Laboratory of Modern Water\|Saving Irrigation of Xinjiang Production & Construction Group, Shihezi, Xinjiang 832003, China | | YANG Guang | College of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832003, China
Key Laboratory of Cold and Arid Regions Eco\|Hydraulic Engineering of Xinjiang Production & Construction Corps,Shihezi, Xinjiang 832003, China
Key Laboratory of Modern Water\|Saving Irrigation of Xinjiang Production & Construction Group, Shihezi, Xinjiang 832003, China | | LIU Chengyue | College of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832003, China
Key Laboratory of Cold and Arid Regions Eco\|Hydraulic Engineering of Xinjiang Production & Construction Corps,Shihezi, Xinjiang 832003, China
Key Laboratory of Modern Water\|Saving Irrigation of Xinjiang Production & Construction Group, Shihezi, Xinjiang 832003, China | | SU Jun | Water Conservancy Project Management and Service Center of Shihezi,Shihezi, Xinjiang 832000, China | | JIA Weikang | Water Conservancy Project Management and Service Center of Shihezi,Shihezi, Xinjiang 832000, China | | TIAN Hao | College of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832003, China
Key Laboratory of Cold and Arid Regions Eco\|Hydraulic Engineering of Xinjiang Production & Construction Corps,Shihezi, Xinjiang 832003, China
Key Laboratory of Modern Water\|Saving Irrigation of Xinjiang Production & Construction Group, Shihezi, Xinjiang 832003, China | | ZHAO Li | College of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832003, China
Key Laboratory of Cold and Arid Regions Eco\|Hydraulic Engineering of Xinjiang Production & Construction Corps,Shihezi, Xinjiang 832003, China
Key Laboratory of Modern Water\|Saving Irrigation of Xinjiang Production & Construction Group, Shihezi, Xinjiang 832003, China | | RAN Maolin | College of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832003, China
Key Laboratory of Cold and Arid Regions Eco\|Hydraulic Engineering of Xinjiang Production & Construction Corps,Shihezi, Xinjiang 832003, China
Key Laboratory of Modern Water\|Saving Irrigation of Xinjiang Production & Construction Group, Shihezi, Xinjiang 832003, China | | PAN Yue | College of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832003, China
Key Laboratory of Cold and Arid Regions Eco\|Hydraulic Engineering of Xinjiang Production & Construction Corps,Shihezi, Xinjiang 832003, China
Key Laboratory of Modern Water\|Saving Irrigation of Xinjiang Production & Construction Group, Shihezi, Xinjiang 832003, China | | WANG Hailong | Administration Water Management Center Second Water Management Station of Manas River Basin in Xinjiang, Shihezi, Xinjiang 832000, China |
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| Abstract: |
| In order to build a dynamic distribution model of water and salt and cotton growth under drip irrigation in arid areas,based on the 2020-2021 field experiment, we conducted numerical simulation of soil water and salt distribution characteristics, crop growth process and material accumulation distribution under 1, 2, 3, 4, 5 and 6 g·L-1 treatments after calibration and verification of the SWAP model’s soil, soil hydraulic function and crop growth modules. The results showed that: (1) The simulation accuracy of soil moisture content and soil salt content was better in 20~100 cm soil layer, but worse in 0~20 cm soil layer. The simulation effect of soil moisture content was better than that of soil salt content. With the increase of salinity of irrigation water source, the simulation error of soil water content and salt content decreases gradually. (2) The simulation effect of leaf area index of cotton under drip irrigation with different salinity water source was better (R2=90.72%, RMSE=0.35 cm2·cm-2, NRMSE=8.73%, IOA=0.98). (3) The simulation effect of cotton stem dry matter accumulation under drip irrigation with different salinity water source was good(R2=89.08%, RMSE=6.12 g, NRMSE=23.16%, IOA=0.96).The results show that SWAP model was able to simulate the dynamic distribution of water and salt and the growth process of cotton under drip irrigation with different salinity. |
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