DOI: 10.1111/gcb.14569
Scopus记录号: 2-s2.0-85061011899
论文题名: Alternative transient states and slow plant community responses after changed flooding regimes
作者: Sarneel J.M. ; Hefting M.M. ; Kowalchuk G.A. ; Nilsson C. ; Van der Velden M. ; Visser E.J.W. ; Voesenek L.A.C.J. ; Jansson R.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2019
卷: 25, 期: 4 起始页码: 1358
结束页码: 1367
语种: 英语
英文关键词: alternative stable states
; drought events
; flood regime change
; hydrological alterations
; hysteresis
; riparian vegetation
; river restoration
; species traits
英文摘要: Climate change will have large consequences for flooding frequencies in freshwater systems. In interaction with anthropogenic activities (flow regulation, channel restoration and catchment land-use) this will both increase flooding and drought across the world. Like in many other ecosystems facing changed environmental conditions, it remains difficult to predict the rate and trajectory of vegetation responses to changed conditions. Given that critical ecosystem services (e.g. bank stabilization, carbon subsidies to aquatic communities or water purification) depend on riparian vegetation composition, it is important to understand how and how fast riparian vegetation responds to changing flooding regimes. We studied vegetation changes over 19 growing seasons in turfs that were transplanted in a full-factorial design between three riparian elevations with different flooding frequencies. We found that (a) some transplanted communities may have developed into an alternative stable state and were still different from the target community, and (b) pathways of vegetation change were highly directional but alternative trajectories did occur, (c) changes were rather linear but faster when flooding frequencies increased than when they decreased, and (d) we observed fastest changes in turfs when proxies for mortality and colonization were highest. These results provide rare examples of alternative transient trajectories and stable states under field conditions, which is an important step towards understanding their drivers and their frequency in a changing world. © 2019 The Authors. Global Change Biology Published by John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117461
Appears in Collections: 气候变化与战略
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Recommended Citation:
Sarneel J.M.,Hefting M.M.,Kowalchuk G.A.,et al. Alternative transient states and slow plant community responses after changed flooding regimes[J]. Global Change Biology,2019-01-01,25(4)