On the cause of abrupt vegetation collapse in North Africa during the Holocene: Climate variability vs. vegetation feedback

Liu, Zhengyu, Wang, Yi, Gallimore, Robert, Notaro, Michael and Prentice, I Colin (2006) On the cause of abrupt vegetation collapse in North Africa during the Holocene: Climate variability vs. vegetation feedback. Geophysical Research Letters, 33 (22). L22709. ISSN 0094-8276

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Abstract

The abrupt desertification over the northern Africa in the mid-Holocene is studied in both a complex and a simple coupled climate-vegetation model. In contrast to the previous mechanism that relies on strong positive vegetation-climate feedback and the resulted multiple equilibria, we propose a new mechanism in which the abrupt desertification is caused by low frequency climate variability, rather than a positive vegetation-climate feedback. The implication of this new mechanism to modelling and observation is also discussed.

Item Type: Article
Schools and Departments: School of Global Studies > Geography
Depositing User: Yi Wang
Date Deposited: 06 Feb 2012 15:21
Last Modified: 04 Apr 2012 12:43
URI: http://sro.sussex.ac.uk/id/eprint/11850
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