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Ecosystem services from southern African woodlands and their future under global change.

Authors :
Ryan, Casey M.
Pritchard, Rose
McNicol, Iain
Owen, Matthew
Fisher, Janet A.
Lehmann, Caroline
Source :
Philosophical Transactions of the Royal Society B: Biological Sciences. 9/19/2016, Vol. 371 Issue 1703, p1-16. 16p.
Publication Year :
2016

Abstract

Miombo and mopane woodlands are the dominant land cover in southern Africa. Ecosystem services from these woodlands support the livelihoods of 100 M rural people and 50 M urban dwellers, and others beyond the region. Provisioning services contribute $9+2 billion yr-1 to rural livelihoods; 76% of energy used in the region is derived from woodlands; and traded woodfuels have an annual value of $780 M.Woodlands supportmuch of the region's agriculture through transfers of nutrients to fields and shifting cultivation. Woodlands store 18-24 PgC carbon, and harbour a unique and diverse flora and fauna that provides spiritual succour and attracts tourists. Longstanding processes that will impact service provision are the expansion of croplands (0.1 M km2; 2000-2014), harvesting ofwoodfuels (93 M tonnes yr-1) and changing access arrangements. Novel, exogenous changes include large-scale land acquisitions (0.07M km2; 2000-2015), climate change and rising CO2. The net ecological response to these changes is poorly constrained, as they act in different directions, and differentially on trees and grasses, leading to uncertainty in future service provision. Land-use change and socio-political dynamics are likely to be dominant forces of change in the short term, but important land-use dynamics remain unquantified. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
09628436
Volume :
371
Issue :
1703
Database :
Academic Search Index
Journal :
Philosophical Transactions of the Royal Society B: Biological Sciences
Publication Type :
Academic Journal
Accession number :
117407362
Full Text :
https://doi.org/10.1098/rstb.2015.0312