DOI: 10.1002/2015GL065252
论文题名: Disruption of hydroecological equilibrium in southwest Amazon mediated by drought
作者: Maeda E.E. ; Kim H. ; Aragão L.E.O.C. ; Famiglietti J.S. ; Oki T.
刊名: Geophysical Research Letters
ISSN: 0094-9095
EISSN: 1944-8826
出版年: 2015
卷: 42, 期: 18 起始页码: 7546
结束页码: 7553
语种: 英语
英文关键词: Amazon
; drought
; GRACE
; QSCAT
; water deficit
Scopus关键词: Ecology
; Ecosystems
; Amazon
; Climate condition
; Forest canopy structure
; GRACE
; Hydrological patterns
; Physical evidence
; QSCAT
; Water deficits
; Drought
; climate change
; drought
; forest canopy
; GRACE
; hydrological modeling
; water stress
; Amazon River
英文摘要: The impacts of droughts on the Amazon ecosystem have been broadly discussed in recent years, but a comprehensive understanding of the consequences is still missing. In this study, we show evidence of a fragile hydrological equilibrium in the western Amazon. While drainage systems located near the equator and the western Amazon do not show water deficit in years with average climate conditions, this equilibrium can be broken during drought events. More importantly, we show that this effect is persistent, taking years until the normal hydrological patterns are reestablished. We show clear links between persistent changes in forest canopy structure and changes in hydrological patterns, revealing physical evidence of hydrological mechanisms that may lead to permanent changes in parts of the Amazon ecosystem. If prospects of increasing drought frequency are confirmed, a change in the current hydroecological patterns in the western Amazon could take place in less than a decade. © 2015 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84945435283&doi=10.1002%2f2015GL065252&partnerID=40&md5=c77b4fcda542779cbfe7ad47d248591c
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8711
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Geosciences and Geography, University of Helsinki, Helsinki, Finland
Recommended Citation:
Maeda E.E.,Kim H.,Aragão L.E.O.C.,et al. Disruption of hydroecological equilibrium in southwest Amazon mediated by drought[J]. Geophysical Research Letters,2015-01-01,42(18).