Journal
JOURNAL OF QUATERNARY SCIENCE
Volume 31, Issue 4, Pages 386-390Publisher
WILEY
DOI: 10.1002/jqs.2865
Keywords
Africa; carbon dioxide; intrinsic water-use efficiency (iWUE); physiological forcing; water resource management
Funding
- National Geographic Society - Science and Exploration Europe [GEFNE80-13]
- Royal Geographical Society
- Quaternary Research Association
- Palaeo-Anthropological Scientific Trust
- National Research Foundation
- SysTem for Analysis
- Research and Training (START)
- Climate Change Consortium of Wales
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Rising atmospheric CO2 concentrations affect climate directly through radiative effects and indirectly by changing plant water-use efficiency. Under global warming scenarios these widely reported changes will have a substantial impact on future bush encroachment, crop yields, river flow and climate feedbacks. Tree-ring intrinsic water-use efficiency (iWUE) records for Africa show a 24.6% increase over the 20th century. As high iWUE can partly counterbalance projected decreases in regional precipitation, this research has important implications for those involved in water resource management and highlights the need for climate models to take physiological forcing into account. Copyright (C) 2016 John Wiley & Sons, Ltd.
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