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The comparative role of key environmental factors in determining savanna productivity and carbon fluxes: a review, with special reference to northern Australia

Kanniah, Kasturi Devi and Beringer, Jason and Hutley, Lindsay B. (2010) The comparative role of key environmental factors in determining savanna productivity and carbon fluxes: a review, with special reference to northern Australia. Progress in Physical Geography, 34 (4). 459 -490. ISSN 0309-1333

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Official URL: http://dx.doi.org/10.1177/0309133310364933

Abstract

Terrestrial ecosystems are highly responsive to their local environments and, as such, the rate of carbon uptake both in shorter and longer timescales and different spatial scales depends on local environmental drivers. For savannas, the key environmental drivers controlling vegetation productivity are water and nutrient availability, vapour pressure deficit (VPD), solar radiation and fire. Changes in these environmental factors can modify the carbon balance of these ecosystems. Therefore, understanding the environmental drivers responsible for the patterns (temporal and spatial) and processes (photosynthesis and respiration) has become a central goal in terrestrial carbon cycle studies. Here we have reviewed the various environmental controls on the spatial and temporal patterns on savanna carbon fluxes in northern Australia. Such studies are critical in predicting the impacts of future climate change on savanna productivity and carbon storage.

Item Type:Article
Uncontrolled Keywords:carbon dioxide, climate change, fire, productivity, rainfall, savanna, solar radiation, temperature
Subjects:G Geography. Anthropology. Recreation > GE Environmental Sciences
Divisions:Geoinformation and Real Estate
ID Code:26529
Deposited By: Liza Porijo
Deposited On:18 Jul 2012 01:46
Last Modified:20 Aug 2014 04:57

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