[1]GUO Tianqi,HUANG Mingbin,ZHU Miyuan,et al.Study on the Difference of Water Balance Between Robinia Pseudoacacia Forestland and Apple Orchard Based on Dual-Porosity Model[J].Research of Soil and Water Conservation,2023,30(05):138-145.[doi:10.13869/j.cnki.rswc.2023.05.017.]
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
30
Number of periods:
2023 05
Page number:
138-145
Column:
Public date:
2023-08-10
- Title:
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Study on the Difference of Water Balance Between Robinia Pseudoacacia Forestland and Apple Orchard Based on Dual-Porosity Model
- Author(s):
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GUO Tianqi1, HUANG Mingbin2, ZHU Miyuan1, ZHANG Rui1
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(1.College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; 2.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China)
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- Keywords:
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land use type; dual-porosity model; redistribution process; soil water content; water balance
- CLC:
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S152.5; S161.4
- DOI:
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10.13869/j.cnki.rswc.2023.05.017.
- Abstract:
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[Objective] The study aims to clarify the dynamic changes and differences in water balance elements between Robinia pseudoacacia woodland and apple orchard, and to provide theoretical guidance for ecological sustainable development. [Methods] This study used the dual pore model and calibrated parameters in Hydras-1D to simulate the dynamic changes of various elements of water balance in Robinia pseudoacacia woodland and apple orchard from 2012 to 2021. [Results] The R2 and RMSE of the two hole model in the optimization and validation periods of Hydras-1D were 0.61 and 0.76, respectively, and 0.026 and 0.048 cm3/cm3, respectively. The water balance errors in the simulation period were 0.18% and 0.04%, respectively; The transpiration of Robinia pseudoacacia forestland and apple orchard were(372±70)mm and(320±34)mm, respectively, and the evaporation was(256±44)mm and(288±36)mm. Variation of soil water storage was(-0.61±96)mm and(-3.26±87)mm, and deep leakage was(34±45)mm and(59±48)mm. [Conclusion] The model can better simulate the dynamic changes of water balance elements in Robinia pseudoacacia woodland and apple orchard. Compared with apple fields, Robinia pseudoacacia forest has a larger transpiration, a smaller evaporation and deeper leakage, and a more significant fluctuation in soil water storage.