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(Article of periodic en Anglais - 2009)

Document title

The natural soil drainage index : an ordinal estimate of long-term soil wetness

Authors(s) and Affiliation(s)

SCHAETZL R.J. (1) ; KRIST F.J. (2) ; STANLEY K. (3) ; HUPY C.M. (4) ;
(1) Dep. of Geography, Michigan State Univ., East Lansing, ETATS-UNIS
(2) GIS and Spatial Analysis, Forest Health Technology, USDA Forest Service, Fort Collins, ETATS-UNIS
(3) Dep. of Geography, Univ. of Wisconsin, Madison, ETATS-UNIS
(4) Dep. of Geography and Anthropology, Univ. of Wisconsin, Eau Claire, ETATS-UNIS

Abstract

In this paper, the AA. present an ordinally based index, intended to generally reflect the amount of water that a soil supplies to plants under natural conditions, over long timescales : the Natural Soil Drainage Index (DI). The DI is primarily derived from a soil's taxonomic subgroup classification, which is a reflection of its long-term wetness. Additional factors that can impact soil water content, quality, and/or availability (e.g. texture), when also reflected in taxonomy, are quantified and added to or subtracted from the base DI to arrive at a final DI value. In GIS applications, map unit slope gradient can be added as an additional variable. The index has a lot of applications in forestry, ecology, geomorphology, and environmental modeling, especially when examined spatially : examples are provided. The DI has great potential for many landscape-scale modeling and GIS applications where soil water content is an important variable

Source

Article of periodic

published at : Physical geography / ISSN 0272-3646

Editor : Taylor & Francis, Abingdon - ROYAUME-UNI (1980)

Millesime : 2009, vol. 30, no5 [pp. 383-409-]

Bibliographic references : 5 p.

Collation : 9 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 20106

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.247/0272-3646.30.5.383

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2009
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