Rivers and resilience: A longer term view from the drylands

Stephen Tooth, Tim Ralph, Zacchary Larkin, Terence McCarthy

Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddPennod


Some previous assessments of dryland river resilience have focused on potential future adjustments to river flow regimes but consideration of the associated adjustments to river geomorphology (e.g. natural channel-floodplain structures) that may also influence riverine ecology or human land use is less common. How can we close this conceptual and practical gap to help enhance river management decision making? Here, we focus on Southern Hemisphere case studies where aerial image interpretations, field investigations, palaeohydrological calculations and geochronology have enabled reconstructions of dryland river responses to changing Holocene hydroclimates. We examine how knowledge of these river responses may provide important insights for improved conceptual definition and practical application of resilience thinking in dryland fluvial geomorphology and cognate disciplines. In particular, we: (1) demonstrate the range of past – and possible future – dryland river responses under changing boundary conditions and forcings; (2) highlight the significance of distinguishing between dryland ‘river behaviour’ and dryland ‘river change’ when considering resilience; (3) stress the importance of identifying proximity to quantified geomorphic thresholds to help distinguish between ‘river behaviour’ and potential ‘river change’; and (4) identify key conceptual and data gaps that need to be addressed to ensure better uptake of these insights in research and management.

Iaith wreiddiolSaesneg
TeitlResilience and Riverine Landscapes
Nifer y tudalennau31
ISBN (Electronig)9780323917162
ISBN (Argraffiad)9780323972055
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 01 Rhag 2023

Ôl bys

Gweld gwybodaeth am bynciau ymchwil 'Rivers and resilience: A longer term view from the drylands'. Gyda’i gilydd, maen nhw’n ffurfio ôl bys unigryw.

Dyfynnu hyn