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The representation of root processes in models addressing the responses of vegetation to global change

Woodward, F.I. and Osborne, C.P. (2000) The representation of root processes in models addressing the responses of vegetation to global change. New Phytologist, 147 (1). pp. 223-232. ISSN 1469-8137

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Abstract

The representation of root activity in models is here confined to considerations of applications assessing the impacts of changes in climate or atmospheric [CO2]. Approaches to modelling roots can be classified into four major types: models in which roots are not considered, models in which there is an interplay between only selected above-ground and below-ground processes, models in which growth allocation to all parts of the plants depends on the availability and matching of the capture of external resources, and models with explicit treatments of root growth, architecture and resource capture. All models seem effective in describing the major root activities of water and nutrient uptake, because these processes are highly correlated, particularly at large scales and with slow or equilibrium dynamics. Allocation models can be effective in providing a deeper, perhaps contrary, understanding of the dynamic underpinning to observations made only above ground. The complex and explicit treatment of roots can be achieved only in small-scale highly studied systems because of the requirements for many initialized variables to run the models

Item Type: Article
Copyright, Publisher and Additional Information: 'This is an electronic version of an Article published in New Phytologist, July 2000, vol. 147, no. 1, pp. 223-232'. © 2000 New Phytologist
Academic Units: The University of Sheffield > Faculty of Science (Sheffield) > School of Biological Sciences (Sheffield) > Department of Animal and Plant Sciences (Sheffield)
Depositing User: Repository Officer
Date Deposited: 24 Aug 2004
Last Modified: 08 Feb 2013 16:46
Status: Published
Refereed: Yes
Identification Number: 10.1046/j.1469-8137.2000.00691.x
URI: http://eprints.whiterose.ac.uk/id/eprint/66

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