Ditch rotation irrigation coupled with multi-scale ecological reservoir operation
Aiming at the extensive ecological irrigation in arid regions, based on the theory of ditch rotation irrigation (DRI), this paper proposes a regulation method of water resources by coupling reservoir operation and Ditch rotation irrigation. Water demand of vegetation is met through combination of wa...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Agricultural Water Management |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0378377424006073 |
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| author | Linhui Mu Tao Bai Dong Liu Hongwei Ji Mingjiang Deng LiangPeng Hong |
| author_facet | Linhui Mu Tao Bai Dong Liu Hongwei Ji Mingjiang Deng LiangPeng Hong |
| author_sort | Linhui Mu |
| collection | DOAJ |
| description | Aiming at the extensive ecological irrigation in arid regions, based on the theory of ditch rotation irrigation (DRI), this paper proposes a regulation method of water resources by coupling reservoir operation and Ditch rotation irrigation. Water demand of vegetation is met through combination of water saving and water supply, so that the ecosystem is adjusted to a new equilibrium state, to promote the coordinated development of aquatic ecology. Firstly, the DRI theoretical system is systematically expounded. Then, by establishing a coupling model of DRI and reservoir operation, the optimal operating scheme is proposed. Finally, the minimum limited water level suitable for DRI is proposed by irrigation effect. Results indicate that (1) DRI created a planar water delivery effect in the core area of riverbank vegetation, with a maximum irrigation area of 0.97 million m2 and water use efficiency of 84.9 %, to improve irrigation effect. (2) Through DRI implementation, the groundwater level in the experimental area rose by 0–0.97 m, and the vegetation coverage increased year by year. It indicates that the DRI improved the ecosystem's adapted ability under extreme drought conditions. (3) Through regulation method of water resources, the minimum limited water levels of reservoir before DRI were proposed, to provide sufficient ecological water for DRI in different periods. The research results have important theoretical value and practical significance for guiding the ecological protection and restoration of vegetation in riverbank. |
| format | Article |
| id | doaj-art-bc0e6029fbfc4bb0a45d7151d190ffa3 |
| institution | Kabale University |
| issn | 1873-2283 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Agricultural Water Management |
| spelling | doaj-art-bc0e6029fbfc4bb0a45d7151d190ffa32025-01-07T04:16:58ZengElsevierAgricultural Water Management1873-22832025-02-01307109271Ditch rotation irrigation coupled with multi-scale ecological reservoir operationLinhui Mu0Tao Bai1Dong Liu2Hongwei Ji3Mingjiang Deng4LiangPeng Hong5State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, ChinaState Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China; Corresponding author.State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, ChinaShaanxi Water Affairs Bureau, Xi'an 710399, ChinaState Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China; Engineering Research Center of Water Resources and Ecological Water Conservancy in Cold and Arid Area of Xinjiang, Urumqi 830000, ChinaXinjiang Tarim River Basin Authority, Xinjiang 841003, ChinaAiming at the extensive ecological irrigation in arid regions, based on the theory of ditch rotation irrigation (DRI), this paper proposes a regulation method of water resources by coupling reservoir operation and Ditch rotation irrigation. Water demand of vegetation is met through combination of water saving and water supply, so that the ecosystem is adjusted to a new equilibrium state, to promote the coordinated development of aquatic ecology. Firstly, the DRI theoretical system is systematically expounded. Then, by establishing a coupling model of DRI and reservoir operation, the optimal operating scheme is proposed. Finally, the minimum limited water level suitable for DRI is proposed by irrigation effect. Results indicate that (1) DRI created a planar water delivery effect in the core area of riverbank vegetation, with a maximum irrigation area of 0.97 million m2 and water use efficiency of 84.9 %, to improve irrigation effect. (2) Through DRI implementation, the groundwater level in the experimental area rose by 0–0.97 m, and the vegetation coverage increased year by year. It indicates that the DRI improved the ecosystem's adapted ability under extreme drought conditions. (3) Through regulation method of water resources, the minimum limited water levels of reservoir before DRI were proposed, to provide sufficient ecological water for DRI in different periods. The research results have important theoretical value and practical significance for guiding the ecological protection and restoration of vegetation in riverbank.http://www.sciencedirect.com/science/article/pii/S0378377424006073Ditch rotation irrigationReservoir operationWater resources regulationEcological protection |
| spellingShingle | Linhui Mu Tao Bai Dong Liu Hongwei Ji Mingjiang Deng LiangPeng Hong Ditch rotation irrigation coupled with multi-scale ecological reservoir operation Agricultural Water Management Ditch rotation irrigation Reservoir operation Water resources regulation Ecological protection |
| title | Ditch rotation irrigation coupled with multi-scale ecological reservoir operation |
| title_full | Ditch rotation irrigation coupled with multi-scale ecological reservoir operation |
| title_fullStr | Ditch rotation irrigation coupled with multi-scale ecological reservoir operation |
| title_full_unstemmed | Ditch rotation irrigation coupled with multi-scale ecological reservoir operation |
| title_short | Ditch rotation irrigation coupled with multi-scale ecological reservoir operation |
| title_sort | ditch rotation irrigation coupled with multi scale ecological reservoir operation |
| topic | Ditch rotation irrigation Reservoir operation Water resources regulation Ecological protection |
| url | http://www.sciencedirect.com/science/article/pii/S0378377424006073 |
| work_keys_str_mv | AT linhuimu ditchrotationirrigationcoupledwithmultiscaleecologicalreservoiroperation AT taobai ditchrotationirrigationcoupledwithmultiscaleecologicalreservoiroperation AT dongliu ditchrotationirrigationcoupledwithmultiscaleecologicalreservoiroperation AT hongweiji ditchrotationirrigationcoupledwithmultiscaleecologicalreservoiroperation AT mingjiangdeng ditchrotationirrigationcoupledwithmultiscaleecologicalreservoiroperation AT liangpenghong ditchrotationirrigationcoupledwithmultiscaleecologicalreservoiroperation |