Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017WR021166 |
Evaporation From Soil Containers With Irregular Shapes | |
Assouline, Shmuel; Narkis, Kfir | |
2017-11-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | Israel |
英文摘要 | Evaporation from bare soils under laboratory conditions is generally studied using containers of regular shapes where the vertical edges are parallel to the flow lines in the drying domain. The main objective of this study was to investigate the impact of irregular container shapes, for which the flow lines either converge or diverge toward the surface. Evaporation from initially saturated sand and sandy loam soils packed in cones and inverted cones was compared to evaporation from corresponding cylindrical columns. The initial evaporation rate was higher in the cones, and close to potential evaporation. At the end of the experiment, the cumulative evaporation depth in the sand cone was equal to that in the column but higher than in the inverted cone, while in the sandy loam, the order was cone > column > inverted cone. By comparison to the column, stage 1 evaporation was longer in the cones, and practically similar in the inverted cones. Stage 2 evaporation rate decreased with the increase of the evaporating surface area. These results were more pronounced in the sandy loam. For the sand column, the transition between stage 1 and stage 2 evaporation occurred when the depth of the saturation front was approximately equal to the characteristic length of the soil. However, for the cone and the inverted cone, it occurred for a shallower depth of the saturation front. It seems therefore that the concept of the characteristic length derived from the soil hydraulic properties is related to drying systems of regular shapes. |
英文关键词 | evaporation characteristic length drying irregular shape column |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000418736700009 |
WOS关键词 | POROUS-MEDIA ; HYDRAULIC CONDUCTIVITY ; WATER-TABLE ; SURFACE ; DYNAMICS ; EQUATION ; NETWORK ; LENGTH ; IMPACT ; RATES |
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/21381 |
专题 | 资源环境科学 |
作者单位 | Agr Res Org, Volcani Ctr, Inst Soil Water & Environm Sci, Rishon Letsiyon, Israel |
推荐引用方式 GB/T 7714 | Assouline, Shmuel,Narkis, Kfir. Evaporation From Soil Containers With Irregular Shapes[J]. WATER RESOURCES RESEARCH,2017,53(11). |
APA | Assouline, Shmuel,&Narkis, Kfir.(2017).Evaporation From Soil Containers With Irregular Shapes.WATER RESOURCES RESEARCH,53(11). |
MLA | Assouline, Shmuel,et al."Evaporation From Soil Containers With Irregular Shapes".WATER RESOURCES RESEARCH 53.11(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论