基于HYDRUS-1D模型的荒漠苜蓿农田滴灌灌溉制度制定
基于HYDRUS-1D模型的荒漠苜蓿农田滴灌灌溉制度制定
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MIAO Qingyuan , MI Lina , QIN Lanyu , ZHU Junyi , LU, Qi , YANG, Wenbin and CHENG Yiben
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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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【目的】探究提高干旱区荒漠苜蓿农田滴灌水分利用效率的方法，制定适宜的节水灌溉制度。【方法】以苜蓿为研究对象，基于HYDRUS-1D模型设置4种灌溉水平（高强度大灌溉量（LH-I）、中强度大灌溉量（MH-I）、低强度中等灌溉量（SM-I）、无灌溉（CK））和5个0~20 cm土层初始土壤体积含水率梯度（4%、6%、8%、10%、12%，分别表示为S1、S2、S3、S4、S5），分析苜蓿根系土壤体积含水率降至土壤凋萎点的时间、峰值及维持在土壤凋萎点以上的时长，筛选0~20 cm土层不同土壤初始体积含水率下的最优灌溉水平。【结果】0~20 cm土层土壤体积含水率的变化对SM-I、CK灌溉水平具有显著影响；在无灌溉的情况下，体积含水率?10%的0~20 cm土层土壤会补给根系层水分；低含水率的0~2...
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基于HYDRUS-1D模型的荒漠苜蓿农田滴灌灌溉制度制定
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TN_cdi_proquest_journals_3098215203
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https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_proquest_journals_3098215203
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1672-3317
DOI
10.13522/j.cnki.ggps.2023332
