Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016WR019708 |
Concentration-discharge relationships during an extreme event: Contrasting behavior of solutes and changes to chemical quality of dissolved organic material in the Boulder Creek Watershed during the September 2013 flood | |
Rue, Garrett P.1; Rock, Nathan D.1; Gabor, Rachel S.1; Pitlick, John2; Tfaily, Malak3; McKnight, Diane M.1 | |
2017-07-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | During the week of 9-15 September 2013, about 44 cm of rain fell across Boulder County, Colorado, USA, representing a very rare precipitation event. The resultant streamflows corresponded to an extreme event not seen since the historical flood of 1894. For the Boulder Creek Critical Zone Observatory (BcCZO), this event provided an opportunity to study the effect of extreme rainfall on solute concentration-discharge relationships and biogeochemical processes. We measured weathering-derived lithologic solutes (Ca, Mg, Na, K, and Si) and dissolved organic carbon (DOC) concentrations at two sites on Boulder Creek during the recession of peak flow. We also isolated four distinct fractions of dissolved organic matter (DOM) for chemical characterization. At the upper and lower sites, all solutes had their highest concentration at peak flow. At the upper site, which represented a mostly forested catchment, the concentrations of lithologic solutes decreased slightly during flood recession. In contrast, DOC and K concentrations decreased by a factor of three. At the lower site within the urban corridor, concentration of lithologic solutes decreased substantially for a few days before rebounding, whereas the DOC and K concentrations continued to decrease. Additionally, we found spatiotemporal trends in the chemical quality of DOM that were consistent with a limited reservoir of soluble organic matter in surficial soils becoming depleted and deeper layers of the Critical Zone contributing DOM during the flood recession. Overall, these results suggest that despite the extreme flood event, concentration-discharge relationships were similar to typical snowmelt periods in this Rocky Mountain region. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407895000006 |
WOS关键词 | SOLID-PHASE EXTRACTION ; MOUNTAIN-NATIONAL-PARK ; FLUORESCENCE SPECTROSCOPY ; CRITICAL ZONE ; DOC EXPORT ; MOLECULAR CHARACTERIZATION ; HEADWATER CATCHMENTS ; TOPOGRAPHIC CONTROLS ; RIVER CONTINUUM ; STREAM WATER |
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/21501 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA; 2.Univ Colorado, Dept Geog, Boulder, CO 80309 USA; 3.Pacific Northwest Natl Lab, Environm Mol Sci Lab, Richland, WA USA |
推荐引用方式 GB/T 7714 | Rue, Garrett P.,Rock, Nathan D.,Gabor, Rachel S.,et al. Concentration-discharge relationships during an extreme event: Contrasting behavior of solutes and changes to chemical quality of dissolved organic material in the Boulder Creek Watershed during the September 2013 flood[J]. WATER RESOURCES RESEARCH,2017,53(7). |
APA | Rue, Garrett P.,Rock, Nathan D.,Gabor, Rachel S.,Pitlick, John,Tfaily, Malak,&McKnight, Diane M..(2017).Concentration-discharge relationships during an extreme event: Contrasting behavior of solutes and changes to chemical quality of dissolved organic material in the Boulder Creek Watershed during the September 2013 flood.WATER RESOURCES RESEARCH,53(7). |
MLA | Rue, Garrett P.,et al."Concentration-discharge relationships during an extreme event: Contrasting behavior of solutes and changes to chemical quality of dissolved organic material in the Boulder Creek Watershed during the September 2013 flood".WATER RESOURCES RESEARCH 53.7(2017). |
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