Simulation of soil water, heat, and salt adsorptive transport under film mulched drip irrigation in an arid saline-alkali area using HYDRUS-2D
The film mulched drip irrigation (FMDI) in severe drought and salinity areas makes the transport of water, heat, and salt in the soil more complicated. In this paper, two-year field experiments were carried out in southern Xinjiang from 2020 to 2021 (Salt levels: 0.2%, 0.4%, and 0.6%; Irrigation lev...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Agricultural Water Management |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S037837742300450X |
| _version_ | 1797430029102088192 |
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| author | Yunfeng Li Qihua Yu Huifeng Ning Yang Gao Jingsheng Sun |
| author_facet | Yunfeng Li Qihua Yu Huifeng Ning Yang Gao Jingsheng Sun |
| author_sort | Yunfeng Li |
| collection | DOAJ |
| description | The film mulched drip irrigation (FMDI) in severe drought and salinity areas makes the transport of water, heat, and salt in the soil more complicated. In this paper, two-year field experiments were carried out in southern Xinjiang from 2020 to 2021 (Salt levels: 0.2%, 0.4%, and 0.6%; Irrigation levels: 30 mm and 45 mm (2020). 22.5 mm, 30 mm, 37.5 mm, and 45 mm (2021)). Using the measured data of soil moisture, heat, and salinity, the HYDRUS-2D model was calibrated and validated, and the effects of soil adsorption on the simulation results were compared. Meanwhile, six irrigation scenarios were designed (The three levels of irrigation times were 8 times, 10 times, and 12 times. The total irrigation amounts were 360 mm and 450 mm). The results indicate that the simulated results of salt transport under the condition of kinetic adsorption matched accurately with the observed data (the maximum of RMSE was 0.293 ds m−1, and the minimum values of R2 and d were 0.923 and 0.934, respectively); similarly, the simulation results of soil water and heat transport were acceptable (the maximum values of RMSE were 0.033 cm cm−1 and 1.897 °C, and the minimum values of R2 and d were 0.877, 0.99 and 0.915, 0.807, respectively). The scenario simulation indicate that salt leaching mainly occurred under plastic film, the desalination in the 0–40 cm soil layer was obvious (The rate range of salt leaching is 29.8∼58.8%), and salt accumulation appeared in the 40–100 cm layer under plastic film in the specific scenarios. Considering the optimal desalination in the cotton root zone, the irrigation mode with 8 irrigation times (The irrigation interval of 12 d during the budding period, 2 times; the irrigation interval of 8 d, 6 times) with a total irrigation amount of 450 mm was recommended, which provides a reference for the regulation of water, heat, and salt in severe drought and salinity areas. |
| first_indexed | 2024-03-09T09:21:45Z |
| format | Article |
| id | doaj.art-0a206014c8b742c0b6ed56cac4cab646 |
| institution | Directory Open Access Journal |
| issn | 1873-2283 |
| language | English |
| last_indexed | 2024-03-09T09:21:45Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Agricultural Water Management |
| spelling | doaj.art-0a206014c8b742c0b6ed56cac4cab6462023-12-02T06:58:39ZengElsevierAgricultural Water Management1873-22832023-12-01290108585Simulation of soil water, heat, and salt adsorptive transport under film mulched drip irrigation in an arid saline-alkali area using HYDRUS-2DYunfeng Li0Qihua Yu1Huifeng Ning2Yang Gao3Jingsheng Sun4Institute of Farmland Irrigation, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Xinxiang 453002, China; Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaCenter for Agricultural Water Research in China, China Agricultural University, Beijing 100083, ChinaInstitute of Farmland Irrigation, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Xinxiang 453002, ChinaInstitute of Farmland Irrigation, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Xinxiang 453002, China; Corresponding authors.Institute of Farmland Irrigation, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Xinxiang 453002, China; Corresponding authors.The film mulched drip irrigation (FMDI) in severe drought and salinity areas makes the transport of water, heat, and salt in the soil more complicated. In this paper, two-year field experiments were carried out in southern Xinjiang from 2020 to 2021 (Salt levels: 0.2%, 0.4%, and 0.6%; Irrigation levels: 30 mm and 45 mm (2020). 22.5 mm, 30 mm, 37.5 mm, and 45 mm (2021)). Using the measured data of soil moisture, heat, and salinity, the HYDRUS-2D model was calibrated and validated, and the effects of soil adsorption on the simulation results were compared. Meanwhile, six irrigation scenarios were designed (The three levels of irrigation times were 8 times, 10 times, and 12 times. The total irrigation amounts were 360 mm and 450 mm). The results indicate that the simulated results of salt transport under the condition of kinetic adsorption matched accurately with the observed data (the maximum of RMSE was 0.293 ds m−1, and the minimum values of R2 and d were 0.923 and 0.934, respectively); similarly, the simulation results of soil water and heat transport were acceptable (the maximum values of RMSE were 0.033 cm cm−1 and 1.897 °C, and the minimum values of R2 and d were 0.877, 0.99 and 0.915, 0.807, respectively). The scenario simulation indicate that salt leaching mainly occurred under plastic film, the desalination in the 0–40 cm soil layer was obvious (The rate range of salt leaching is 29.8∼58.8%), and salt accumulation appeared in the 40–100 cm layer under plastic film in the specific scenarios. Considering the optimal desalination in the cotton root zone, the irrigation mode with 8 irrigation times (The irrigation interval of 12 d during the budding period, 2 times; the irrigation interval of 8 d, 6 times) with a total irrigation amount of 450 mm was recommended, which provides a reference for the regulation of water, heat, and salt in severe drought and salinity areas.http://www.sciencedirect.com/science/article/pii/S037837742300450XHYDRUS-2DSoil moistureSoil salinityAdsorptionSalt accumulation |
| spellingShingle | Yunfeng Li Qihua Yu Huifeng Ning Yang Gao Jingsheng Sun Simulation of soil water, heat, and salt adsorptive transport under film mulched drip irrigation in an arid saline-alkali area using HYDRUS-2D Agricultural Water Management HYDRUS-2D Soil moisture Soil salinity Adsorption Salt accumulation |
| title | Simulation of soil water, heat, and salt adsorptive transport under film mulched drip irrigation in an arid saline-alkali area using HYDRUS-2D |
| title_full | Simulation of soil water, heat, and salt adsorptive transport under film mulched drip irrigation in an arid saline-alkali area using HYDRUS-2D |
| title_fullStr | Simulation of soil water, heat, and salt adsorptive transport under film mulched drip irrigation in an arid saline-alkali area using HYDRUS-2D |
| title_full_unstemmed | Simulation of soil water, heat, and salt adsorptive transport under film mulched drip irrigation in an arid saline-alkali area using HYDRUS-2D |
| title_short | Simulation of soil water, heat, and salt adsorptive transport under film mulched drip irrigation in an arid saline-alkali area using HYDRUS-2D |
| title_sort | simulation of soil water heat and salt adsorptive transport under film mulched drip irrigation in an arid saline alkali area using hydrus 2d |
| topic | HYDRUS-2D Soil moisture Soil salinity Adsorption Salt accumulation |
| url | http://www.sciencedirect.com/science/article/pii/S037837742300450X |
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