辽西北不同沙化程度草地饱和导水率及其影响因素
辽西北不同沙化程度草地饱和导水率及其影响因素
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Xinxiang City: Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
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Xinxiang City: Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
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辽西北地处干旱半干旱地区,降水量少而蒸发量大,容易导致土地沙化,产生水土流失和生态环境问题,制约当地社会经济和生态文明建设的可持续发展。【目的】本文分析不同沙化程度草地土壤饱和导水率特征及影响因素,揭示土地沙化过程中土壤水分入渗动态变化机制。【方法】以辽西北沙化草地为研究对象,基于室内环刀法、现场采样和室内分析相结合的方法,揭示4种不同沙化程度草地的土壤饱和导水率及影响因素。【结果】不同沙化程度草地土壤饱和导水率表现为未沙化(2.46 mm/min)?轻度沙化(5.57 mm/min)?中度沙化(8.72 mm/min)?重度沙化(9.04 mm/min),未沙化草地各土层土壤饱和导水率仅为重度沙化草地各深度土壤饱和导水率的27.21%;不同沙化程度草地饱和导水率随土层深度变化整体表现为增大...
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辽西北不同沙化程度草地饱和导水率及其影响因素
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TN_cdi_proquest_journals_3122196048
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https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_proquest_journals_3122196048
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1672-3317
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10.13522/j.cnki.ggps.2024085