Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017WR020429 |
Evidence for the Activation of Shallow Preferential Flow Paths in a Tropical Panama Watershed Using Germanium and Silicon | |
Gardner, Christopher B.1,2; Litt, Guy F.3; Lyons, W. Berry1,2; Ogden, Fred L.3,4 | |
2017-10-01 | |
发表期刊 | WATER RESOURCES RESEARCH
![]() |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:10 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Panama |
英文摘要 | In humid tropical watersheds, the hydrologic flow paths taken by rain event waters and how they interact with groundwater and soil matrix water to form streamflow are poorly understood. Preferential flow paths (PFPs) confound storm infiltration processes, especially in the humid tropics where PFPs are common. This work applies germanium (Ge) and silicon (Si) as natural flow path tracers in conjunction with water stable isotopes and electrical conductivity to examine the rapid delivery of shallow soil water, the activation of PFPs, and event water partitioning in an experimental catchment in central Panama. We employed a three-component mixing model for hydrograph separation using the following end-member waters: (i) base flow (high [Si], low [Ge], and low Ge/Si ratio), (ii) dilute canopy throughfall (low [Si] and low [Ge]), and (iii) shallow (<15 cm) soil matrix water (low [Si], high [Ge], and high Ge/Si ratio). These three end members bounded all observed Ge/Si streamflow ratios. During small rain events ( |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000418736000024 |
WOS关键词 | SATURATED HYDRAULIC CONDUCTIVITY ; FORESTED HEADWATER CATCHMENT ; LUQUILLO-EXPERIMENTAL-FOREST ; FISSURED GRANITIC CATCHMENT ; HYDROGRAPH SEPARATION ; DISSOLVED SILICA ; THRESHOLD BEHAVIOR ; MODELING TRANSPORT ; RUNOFF ; SOIL |
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/21576 |
专题 | 资源环境科学 |
作者单位 | 1.Ohio State Univ, Sch Earth Sci, Columbus, OH 43210 USA; 2.Ohio State Univ, Byrd Polar & Climate Res Ctr, Columbus, OH 43210 USA; 3.Univ Wyoming, Dept Civil & Architectural Engn, Laramie, WY 82071 USA; 4.Smithsonian Trop Res Inst, Panama City, Panama |
推荐引用方式 GB/T 7714 | Gardner, Christopher B.,Litt, Guy F.,Lyons, W. Berry,et al. Evidence for the Activation of Shallow Preferential Flow Paths in a Tropical Panama Watershed Using Germanium and Silicon[J]. WATER RESOURCES RESEARCH,2017,53(10). |
APA | Gardner, Christopher B.,Litt, Guy F.,Lyons, W. Berry,&Ogden, Fred L..(2017).Evidence for the Activation of Shallow Preferential Flow Paths in a Tropical Panama Watershed Using Germanium and Silicon.WATER RESOURCES RESEARCH,53(10). |
MLA | Gardner, Christopher B.,et al."Evidence for the Activation of Shallow Preferential Flow Paths in a Tropical Panama Watershed Using Germanium and Silicon".WATER RESOURCES RESEARCH 53.10(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