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Runoff processes in Southeast Asia: role of soil, regolith and rock type.

Chappell, Nick A. and Sherlock, M. and Bidin, K. and Macdonald, R. and Najman, Y. and Davies, G. (2007) Runoff processes in Southeast Asia: role of soil, regolith and rock type. In: Forest Environments in the Mekong River Basin. Springer Verlag, Tokyo, pp. 3-23. ISBN 978 4 431 46500 3

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Abstract

Runoff processes govern the river hydrograph form, location of return-flow and biogeochemical water quality of tropical forest watersheds. This study reviews the literature on runoff processes from tropical rainforests and applies it to the situation in tropical Southeast Asia. The impact of clay mineralogy on permeability and thence water pathways within the soil, and the role of deep pathways with unconsolidated geological materials (regolith) or permeable rock (solid geology) are emphasised, and a new perceptual model, DELTAmodel, presented. Lastly, the implications of these findings for runoff processes within the Mekong Basin are discussed.

Item Type: Contribution in Book/Report/Proceedings
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
VC's Office
ID Code: 4393
Deposited By: Dr Nick A. Chappell
Deposited On: 12 Mar 2008 16:19
Refereed?: No
Published?: Published
Last Modified: 26 Jul 2012 22:08
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/4393

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