GIS based Watershed Classification in Lao PDR

Heinimann, Andreas (2006). GIS based Watershed Classification in Lao PDR. Southeast Asian Water Environment, 1, pp. 43-50. London, United Kingdom: IWA Publishing

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Every inclined land surface has a potential for soil and water degradation, the seriousness depends on a multitude of parameters such as slope, soil type, geomorphology, rainfall, land use and natural vegetation cover. In Laos this intensified land use leads to reduced vegetation cover, to increased soil erosion, decreasing yield, and finally is likely to influence the hydrological regime. Against this background the Mekong River Commission (MRC) elaborated a spatial explicit Watershed Classification (WSC) for the Lower Mekong Basin. Based on topographic factors derived from a high-resolution Digital Terrain Model, five watershed classes are calculated, giving indication about the sensitivity to resource degradation by soil erosion. The WSC allows spatial priority setting for watershed management and generally supports informed decision making on reconnaissance level. In the conclusions focus is laid on general considerations when GIS techniques are used for spatial decision support in a development context.

Item Type:

Conference or Workshop Item (Paper)

Division/Institute:

08 Faculty of Science > Institute of Geography
08 Faculty of Science > Institute of Geography > NCCR North-South Management Centre (discontinued)
10 Strategic Research Centers > Centre for Development and Environment (CDE)

UniBE Contributor:

Heinimann, Andreas

Subjects:

900 History > 910 Geography & travel
300 Social sciences, sociology & anthropology > 330 Economics

ISBN:

9781843390985

Publisher:

IWA Publishing

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:46

Last Modified:

03 Sep 2015 09:59

BORIS DOI:

10.7892/boris.19211

URI:

https://boris.unibe.ch/id/eprint/19211 (FactScience: 1688)

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