| 陕北不同水分梯度下土壤水文变化分析 |
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| 引用本文： | 李善才,马理辉. 陕北不同水分梯度下土壤水文变化分析[J]. 节水灌溉, 2011, 0(10): 45-47 |
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| 作者姓名： | 李善才 马理辉 |
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| 作者单位： | 1. 榆林市农业科学研究院,陕西榆林,719000
2. 西北农林科技大学水土保持研究所,陕西杨凌,712100 |
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| 基金项目： | 国家马铃薯产业技术体系建设专项基金资助项目(nycytx-15) |
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| 摘 要： | 通过设置3个灌水梯度（相对田间持水量：70%、50%、不灌水）,研究了不同水分梯度下土壤水文时空动态变化。结果表明：通过灌溉的土壤持续时间内储水量、土壤含水量变化幅度以及高含水区范围都要明显大于自然降雨条件下的土壤水文。试验得出：对植被进行分段灌溉补水使其达到田间持水量的70%,可以有效的改变土壤水文性质,为植物生长创...
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| 关 键 词： | 灌溉 土壤含水量 储水量 土壤水分环境 |
Analysis of Soil Hydrology Dynamic Change under Different Soil Water Content in Northern Shaanxi |
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| LI Shan-cai,MA Li-hui. Analysis of Soil Hydrology Dynamic Change under Different Soil Water Content in Northern Shaanxi[J]. Water Saving Irrigation, 2011, 0(10): 45-47 |
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| Authors: | LI Shan-cai MA Li-hui |
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| Affiliation: | LI Shan-cai1,MA Li-hui2(1.Yulin Academy of Agricultural Sciences,Yulin 719000,Shaanxi Province,China,2.Institute of Soil and Water Conservation Northwest A&F University,Yangling 712100,China) |
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| Abstract: | The temporal and spatial dynamics of soil hydrology were studied under different moisture gradients by setting three irrigation gradients(relative to field capacity: 70%,50%,no irrigation).The results showed that the water storage amount,the soil moisture and the high amplitude water area under irrigation were significantly larger than that under natural rainfall in duration time.It was concluded that the soil hydrology properties could be effectively changed through irrigating soil to reach the 70% of fiel... |
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| Keywords: | irrigation soil water content water storage amount soil water environment |
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