Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR024759 |
Detecting Changes in River Flow Caused by Wildfires, Storms, Urbanization, Regulation, and Climate Across Sweden | |
Arheimer, Berit; Lindstrom, Goran | |
2019-11-13 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Sweden |
英文摘要 | Changes in river flow may appear from shifts in land cover, constructions in the river channel, and climatic change, but currently there is a lack of understanding of the relative importance of these drivers. Therefore, we collected gauged river flow time series from 1961 to 2018 from across Sweden for 34 disturbed catchments to quantify how the various types of disturbances have affected river flow. We used trend analysis and the differences in observations versus hydrological modeling to explore the effects on river flow from (1) land cover changes from wildfires, storms, and urbanization; (2) dam constructions with regulations for hydropower production; and (3) climate-change impact in otherwise undisturbed catchments. A mini model ensemble, consisting of three versions of the S-HYPE model, was used, and the three models gave similar results. We searched for changes in annual and daily stream flow, seasonal flow regime, and flow duration curves. The results show that regulation of river flow has the largest impact, reducing spring floods with up to 100% and increasing winter flow by several orders of magnitude, with substantial effects transmitted far downstream. Climate changed the total river flow up to 20%. Tree removal by wildfires and storms has minor impacts at medium and large scales. Urbanization, on the contrary, showed a 20% increase in high flows also at medium scales. This study emphasizes the benefits of combining observed time series with numerical modeling to exclude the effect of varying weather conditions, when quantifying the effects of various drivers on long-term streamflow shifts. |
英文关键词 | change discharge modelling residuals wildfires storms |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000496038300001 |
WOS关键词 | LAND-COVER ; HYDROLOGICAL PREDICTIONS ; CHANGE IMPACT ; WATER ; VARIABILITY ; RUNOFF ; MODELS ; EUROPE ; FRAGMENTATION ; PRECIPITATION |
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/223892 |
专题 | 资源环境科学 |
作者单位 | SMHI, Norrkoping, Sweden |
推荐引用方式 GB/T 7714 | Arheimer, Berit,Lindstrom, Goran. Detecting Changes in River Flow Caused by Wildfires, Storms, Urbanization, Regulation, and Climate Across Sweden[J]. WATER RESOURCES RESEARCH,2019. |
APA | Arheimer, Berit,&Lindstrom, Goran.(2019).Detecting Changes in River Flow Caused by Wildfires, Storms, Urbanization, Regulation, and Climate Across Sweden.WATER RESOURCES RESEARCH. |
MLA | Arheimer, Berit,et al."Detecting Changes in River Flow Caused by Wildfires, Storms, Urbanization, Regulation, and Climate Across Sweden".WATER RESOURCES RESEARCH (2019). |
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