DOI: 10.5194/hess-22-1735-2018
Scopus记录号: 2-s2.0-85043519546
论文题名: Scaling properties reveal regulation of river flows in the Amazon through a "forest reservoir"
作者: Salazar J ; F ; , Villegas J ; C ; , Rendón A ; M ; , Rodríguez E ; , Hoyos I ; , Mercado-Bettín D ; , Poveda G
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2018
卷: 22, 期: 3 起始页码: 1735
结束页码: 1748
语种: 英语
Scopus关键词: Flow of water
; Forestry
; Reservoirs (water)
; Stream flow
; Watersheds
; Changing environment
; Critical threshold
; Early warning
; Hydrological impacts
; Land atmosphere interaction
; Physical interpretation
; Precipitation recycling
; Scaling properties
; Rivers
; atmosphere-biosphere interaction
; flow regulation
; global change
; hydrological regime
; river basin
; river flow
; threshold
; Amazon Basin
; Amazon River
英文摘要: Many natural and social phenomena depend on river flow regimes that are being altered by global change. Understanding the mechanisms behind such alterations is crucial for predicting river flow regimes in a changing environment. Here we introduce a novel physical interpretation of the scaling properties of river flows and show that it leads to a parsimonious characterization of the flow regime of any river basin. This allows river basins to be classified as regulated or unregulated, and to identify a critical threshold between these states. We applied this framework to the Amazon river basin and found both states among its main tributaries. Then we introduce the "forest reservoir" hypothesis to describe the natural capacity of river basins to regulate river flows through land-atmosphere interactions (mainly precipitation recycling) that depend strongly on the presence of forests. A critical implication is that forest loss can force the Amazonian river basins from regulated to unregulated states. Our results provide theoretical and applied foundations for predicting hydrological impacts of global change, including the detection of early-warning signals for critical transitions in river basins. © Author(s) 2018. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79362
Appears in Collections: 气候变化事实与影响
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作者单位: GIGA, Escuela Ambiental, Facultad de Ingeniería, Universidad de Antioquia, Medellín, Colombia; School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, United States; Instituto de Física, Universidad de Antioquia, Medellín, Colombia; Universidad Nacional de Colombia, Sede Medellín, Departamento de Geociencias y Medio Ambiente, Facultad de Minas, Medellín, Colombia
Recommended Citation:
Salazar J,F,, Villegas J,et al. Scaling properties reveal regulation of river flows in the Amazon through a "forest reservoir"[J]. Hydrology and Earth System Sciences,2018-01-01,22(3)