An ecohydrological framework for grass displacement by woody plants in savannas
نویسندگان
چکیده
منابع مشابه
Evaluating Ecohydrological Theories of Woody Root Distribution in the Kalahari
The contribution of savannas to global carbon storage is poorly understood, in part due to lack of knowledge of the amount of belowground biomass. In these ecosystems, the coexistence of woody and herbaceous life forms is often explained on the basis of belowground interactions among roots. However, the distribution of root biomass in savannas has seldom been investigated, and the dependence of...
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Woody encroachment is a widespread and acute phenomenon affecting grasslands and savannas worldwide. We performed a meta-analysis of 29 studies from 13 different grassland/savanna communities in North America to determine the consequences of woody encroachment on plant species richness. In all 13 communities, species richness declined with woody plant encroachment (average decline = 45%). Speci...
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15 صفحه اولNonstructural carbon in woody plants.
Nonstructural carbon (NSC) provides the carbon and energy for plant growth and survival. In woody plants, fundamental questions about NSC remain unresolved: Is NSC storage an active or passive process? Do older NSC reserves remain accessible to the plant? How is NSC depletion related to mortality risk? Herein we review conceptual and mathematical models of NSC dynamics, recent observations and ...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Biogeosciences
سال: 2014
ISSN: 2169-8953
DOI: 10.1002/2013jg002577