Authors
Laura Turnbull, Bradford P Wilcox, Jayne Belnap, S Ravi, P D'odorico, Daniel Childers, Willis Gwenzi, G Okin, J Wainwright, KK Caylor, T Sankey
Publication date
2012/3
Journal
Ecohydrology
Volume
5
Issue
2
Pages
174-183
Publisher
John Wiley & Sons, Ltd
Description
Ecohydrological feedbacks are likely to be critical for understanding the mechanisms by which changes in exogenous forces result in ecosystem state change. We propose that in drylands, the dynamics of ecosystem state change are determined by changes in the type (stabilizing vs amplifying) and strength of ecohydrological feedbacks following a change in exogenous forces. Using a selection of five case studies from drylands, we explore the characteristics of ecohydrological feedbacks and resulting dynamics of ecosystem state change. We surmise that stabilizing feedbacks are critical for the provision of plant‐essential resources in drylands. Exogenous forces that break these stabilizing feedbacks can alter the state of the system, although such changes are potentially reversible if strong amplifying ecohydrological feedbacks do not develop. The case studies indicate that if amplifying ecohydrological feedbacks …
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