Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016WR019260 |
The pulse of driftwood export from a very large forested river basin over multiple time scales, Slave River, Canada | |
Kramer, Natalie1; Wohl, Ellen2; Hess-Homeier, Brooke3; Leisz, Stephen4 | |
2017-03-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:3 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | This study presents a case study of large wood transport on the great Slave River in northern Canada with the objective to better understand the processes of and variability in pulsed wood fluxes from large forested catchments. We use a varied approach, integrating field characterization of wood, historical anecdotes, repeat aerial imagery of stored wood, and time-lapse imagery of moving wood, for a robust analysis and synthesis of processes behind pulsed wood flux, from yearly uncongested export to rare congested wood floods. Repeat monitoring of known sites of temporary storage with new or historic imagery proved to be a very useful tool for constraining wood flux histories. Pulsed wood export on the Slave River is not an artifact of episodic recruitment from major up-basin disturbances, but rather reflects decadal- to half-century-scale discharge patterns that redistribute wood recruited from channel migration and bank slumping. We suggest that the multiyear flow history is of paramount importance for estimating wood flux magnitude, followed in declining importance by the yearly sequence of peaks and the magnitude and characteristics of the rising limb of individual floods. Plain Language Summary Driftwood is an important element of landscapes and ecosystems because it provides essential nutrients and habitat in many water environments. This work describes how driftwood is transported through really big rivers at multiple time scales from days to decades to a half century. We characterize large driftwood floods, which are events of massive floating mats of driftwood, as well as transport of wood within ice from a relatively pristine forested river basin. Describing driftwood transport in a mostly unaltered basin, such as the Slave River, helps scientists understand the impact of driftwood depletion on river, lake, and ocean ecosystems from human land use practices, such as dams and deforestation. |
英文关键词 | driftwood Slave River instream wood wood flux great river |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000400160500013 |
WOS关键词 | COARSE WOODY DEBRIS ; PARTICULATE ORGANIC-MATTER ; HEADWATER STREAM ; FLUME EXPERIMENT ; AIN RIVER ; DYNAMICS ; TRANSPORT ; PERSPECTIVE ; RETENTION ; SYSTEMS |
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/20018 |
专题 | 资源环境科学 |
作者单位 | 1.Utah State Univ, Dept Watershed Sci, Logan, UT 84322 USA; 2.Colorado State Univ, Dept Geosci, Ft Collins, CO 80523 USA; 3.Univ Montana, Dept Geosci, Missoula, MT 59812 USA; 4.Colorado State Univ, Dept Anthropol, Ft Collins, CO 80523 USA |
推荐引用方式 GB/T 7714 | Kramer, Natalie,Wohl, Ellen,Hess-Homeier, Brooke,et al. The pulse of driftwood export from a very large forested river basin over multiple time scales, Slave River, Canada[J]. WATER RESOURCES RESEARCH,2017,53(3). |
APA | Kramer, Natalie,Wohl, Ellen,Hess-Homeier, Brooke,&Leisz, Stephen.(2017).The pulse of driftwood export from a very large forested river basin over multiple time scales, Slave River, Canada.WATER RESOURCES RESEARCH,53(3). |
MLA | Kramer, Natalie,et al."The pulse of driftwood export from a very large forested river basin over multiple time scales, Slave River, Canada".WATER RESOURCES RESEARCH 53.3(2017). |
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