Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR025539 |
Transport and Water Age Dynamics in Soils: A Comparative Study of Spatially Integrated and Spatially Explicit Models | |
Asadollahi, Mitra1; Stumpp, Christine2; Rinaldo, Andrea1,3; Benettin, Paolo1 | |
2020-03-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2020 |
卷号 | 56期号:3 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; Austria; Italy |
英文摘要 | We address transport by transit times (i.e., the age of water parcels leaving a storage as discharge, deep loss, or evapotranspiration) in subvertical soil systems, key to our understanding of water quality in catchments and streams. While the use of field and lysimeter observations to constrain and validate modeling approaches is generally accepted, different views exist on the relative ranges of applicability of spatially integrated or spatially explicit approaches. This study specifically illustrates how one class of spatially integrated models of transport, based on StorAge Selection (SAS) functions, fares with respect to spatially explicit hydrologic models in a case where detailed tracer data from experimental lysimeters exist and for which both approaches are viable. Data from two lysimeters experiments that differ in atmospheric conditions, size of the installation, tracer type, soil texture, and vegetation are used to contrast results from two transport models: tran-SAS (space implicit) and HYDRUS-1D (space explicit). Results suggest that although the two lysimeters are characterized by different transit time distributions, their underlying transport mechanisms are similar and represented well by both models. The comparison between the two models results in robust estimates of the transport timescales and clearly shows that percolation fluxes at the bottom of a lysimeter tend to drain the relatively old components of the soil storage. We conclude that the convergence of the approaches in a geomorphologically simple and data-rich problem supports extensive uses of the spatially integrated approach in cases where the scale of the problem, or subgrid parameterization needs, may limit the applicability of detailed modeling approaches. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000538000800006 |
WOS关键词 | ENVIRONMENTAL ISOTOPE DELTA-O-18 ; STORAGE SELECTION FUNCTIONS ; TRANSIT-TIME DISTRIBUTIONS ; RESIDENCE TIMES ; LYSIMETER ; FLOW ; VARIABILITY ; EVAPOTRANSPIRATION ; PRECIPITATION ; TRACKING |
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/280592 |
专题 | 资源环境科学 |
作者单位 | 1.Ecole Polytech Fed Lausanne EPFL, Lab Ecohydrol ENAC IIE ECHO, Lausanne, Switzerland; 2.Univ Nat Resources & Life Sci, Inst Soil Phys & Rural Water Management, Vienna, Austria; 3.Univ Padua, Dipartimento ICEA, Padua, Italy |
推荐引用方式 GB/T 7714 | Asadollahi, Mitra,Stumpp, Christine,Rinaldo, Andrea,et al. Transport and Water Age Dynamics in Soils: A Comparative Study of Spatially Integrated and Spatially Explicit Models[J]. WATER RESOURCES RESEARCH,2020,56(3). |
APA | Asadollahi, Mitra,Stumpp, Christine,Rinaldo, Andrea,&Benettin, Paolo.(2020).Transport and Water Age Dynamics in Soils: A Comparative Study of Spatially Integrated and Spatially Explicit Models.WATER RESOURCES RESEARCH,56(3). |
MLA | Asadollahi, Mitra,et al."Transport and Water Age Dynamics in Soils: A Comparative Study of Spatially Integrated and Spatially Explicit Models".WATER RESOURCES RESEARCH 56.3(2020). |
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