Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018WR023037 |
Alternative Model for Predicting Soil Hydraulic Conductivity Over the Complete Moisture Range | |
Wang, Yunquan1,2; Jin, Menggui1,2; Deng, Zijuan3 | |
2018-09-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2018 |
卷号 | 54期号:9页码:6860-6876 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Australia |
英文摘要 | Considering film flow in the development of a soil hydraulic model has become a key method for improving model performance under dry conditions. With the considerable improvement in model performance, the trade-off is often to increase the model complexity, thus limiting a model's application. In this paper, an alternative model is presented to predict soil hydraulic conductivities over the entire moisture range. In contrast to existing models that treat conductivity as a summation of the capillary and film components, the proposed model applies a single equation to capture the variation of the two conductivity components. The new model, therefore, presents a simple form, with no extra parameters added to the basic capillary models. Model testing with 24 soil data sets revealed that it was successful in predicting conductivities over the complete moisture range. A comparison with existing models demonstrated that the proposed model was generally in higher agreement with observations, achieving a much lower mean value of the root mean square errors for the predicted conductivities. |
英文关键词 | soil hydraulic model capillary flow film flow unsaturated porous media |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000448088100056 |
WOS关键词 | SIMPLE CONSISTENT MODELS ; WATER-RETENTION ; POROUS-MEDIA ; EVAPORATION METHOD ; FILM ; PERMEABILITY ; ADSORPTION ; VAPOR ; STATE ; FLOW |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/20075 |
专题 | 资源环境科学 |
作者单位 | 1.China Univ Geosci, Sch Environm Studies, Wuhan, Hubei, Peoples R China; 2.China Univ Geosci, Lab Basin Hydrol & Wetland Ecorestorat, Wuhan, Hubei, Peoples R China; 3.Flinders Univ South Australia, Coll Sci & Engn, Bedford Pk, SA, Australia |
推荐引用方式 GB/T 7714 | Wang, Yunquan,Jin, Menggui,Deng, Zijuan. Alternative Model for Predicting Soil Hydraulic Conductivity Over the Complete Moisture Range[J]. WATER RESOURCES RESEARCH,2018,54(9):6860-6876. |
APA | Wang, Yunquan,Jin, Menggui,&Deng, Zijuan.(2018).Alternative Model for Predicting Soil Hydraulic Conductivity Over the Complete Moisture Range.WATER RESOURCES RESEARCH,54(9),6860-6876. |
MLA | Wang, Yunquan,et al."Alternative Model for Predicting Soil Hydraulic Conductivity Over the Complete Moisture Range".WATER RESOURCES RESEARCH 54.9(2018):6860-6876. |
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