气候变化领域集成服务门户(CCPortal): Scaling properties reveal regulation of river flows in the Amazon through a "forest reservoir"

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DOI	10.5194/hess-22-1735-2018
	Scaling properties reveal regulation of river flows in the Amazon through a "forest reservoir"
	Salazar J.F.; Villegas J.C.; Rendón A.M.; Rodríguez E.; Hoyos I.; Mercado-Bettín D.; Poveda G.
发表日期	2018
ISSN	1027-5606
起始页码	1735
结束页码	1748
卷号	22 期号:3
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.
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
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160087
作者单位	Salazar, J.F., GIGA, Escuela Ambiental, Facultad de Ingeniería, Universidad de Antioquia, Medellín, Colombia; Villegas, J.C., 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; Rendón, A.M., GIGA, Escuela Ambiental, Facultad de Ingeniería, Universidad de Antioquia, Medellín, Colombia; Rodríguez, E., GIGA, Escuela Ambiental, Facultad de Ingeniería, Universidad de Antioquia, Medellín, Colombia; Hoyos, I., GIGA, Escuela Ambiental, Facultad de Ingeniería, Universidad de Antioquia, Medellín, Colombia, Instituto de Física, Universidad de Antioquia, Medellín, Colombia; Mercado-Bettín, D., GIGA, Escuela Ambiental, Facultad de Ingeniería, Universidad de Antioquia, Medellín, Colombia; Poveda, G., Universidad Nacional de Colombia, Sede Medellín, Departamento de Geociencias y Medio Ambiente, Facultad de Minas, Medellín, Colombia
推荐引用方式 GB/T 7714	Salazar J.F.,Villegas J.C.,Rendón A.M.,et al. Scaling properties reveal regulation of river flows in the Amazon through a "forest reservoir"[J],2018,22(3).
APA	Salazar J.F..,Villegas J.C..,Rendón A.M..,Rodríguez E..,Hoyos I..,...&Poveda G..(2018).Scaling properties reveal regulation of river flows in the Amazon through a "forest reservoir".Hydrology and Earth System Sciences,22(3).
MLA	Salazar J.F.,et al."Scaling properties reveal regulation of river flows in the Amazon through a "forest reservoir"".Hydrology and Earth System Sciences 22.3(2018).