期刊
NATURE CLIMATE CHANGE
卷 5, 期 9, 页码 823-829出版社
NATURE RESEARCH
DOI: 10.1038/NCLIMATE2753
关键词
-
资金
- South African National Research Foundation [92463]
- NRF/CSIR Applied Center for Climate and Earth System Studies
Projections of ecosystem and biodiversity change for Africa under climate change diverge widely. More than other continents, Africa has disturbance-driven ecosystems that diversified under low Neogene CO2 levels, in which flammable fire-dependent C-4 grasses suppress trees, and mega-herbivore action alters vegetation significantly. An important consequence is metastability of vegetation state, with rapid vegetation switches occurring, some driven by anthropogenic CO2-stimulated release of trees from disturbance control. These have conflicting implications for biodiversity and carbon sequestration relevant for policymakers and land managers. Biodiversity and ecosystem change projections need to account for both disturbance control and direct climate control of vegetation structure and function.
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