| 陆东旭,刘金涛,尚熳廷,于朋.土壤表面积水深度对入渗的影响[J].干旱地区农业研究,2009,27(1):140~142 |
| 土壤表面积水深度对入渗的影响 |
| Effects of soil surface ponding depth on infiltration |
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| DOI：10.7606/j.issn.1000-7601.2009.01.27 |
| 中文关键词: 土壤 入渗 积水深度 HYDRUS-1D |
| 英文关键词:soil infiltration surface ponding HYDRUS-1D |
| 基金项目:河海大学水文水资源与水利工程科学国家重点实验室开放研究基金资助项目(2006411811) |
| 作者 | 单位 | | 陆东旭 | State Key Laboratory of Hydrology—Water Resources and Hydraulic Engineering Hehai University,Nanjing, Jiangsu 210098, China | | 刘金涛 | State Key Laboratory of Hydrology—Water Resources and Hydraulic Engineering Hehai University,Nanjing, Jiangsu 210098, China | | 尚熳廷 | State Key Laboratory of Hydrology—Water Resources and Hydraulic Engineering Hehai University,Nanjing, Jiangsu 210098, China | | 于朋 | State Key Laboratory of Hydrology—Water Resources and Hydraulic Engineering Hehai University,Nanjing, Jiangsu 210098, China |
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| 中文摘要: |
| 采用HYDRUS-1D模型,对积水入渗问题进行了数值模拟,并分析了积水深度变化对入渗的影响。采用土柱降雨入渗的观测数据进行模型参数率确定及验证,结果表明HYDRUS-1D模型具有良好的模拟效果。进而,使用HYDRUS-1D模型模拟不同积水深度下的土壤含水量变化情况,分析发现,在不同的积水深度情况下,土柱表面入渗通量有较明显的差异,积水深每降低0.5 cm,同一时间相同观测点位置处土壤含水量减少1.2%~2.8%,当上表面水头逐渐增大时这种现象更加明显。 |
| 英文摘要: |
| HYDRUS-1D model was used to simulate soil moisture profiles under artificial rainfall and good results were obtained.Then it was also used to simulate infiltration under different surface ponding.The simulation results showed that the infiltration rate differs from each other with different surface ponding.When the depth of surface ponding reduces 0.5 cm, soil moisture reduces 1.2%～2.8% at the same observing location.This phenomenon becomes more apparent when the head of water on the surface increases. |
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