Rangeland Ecology & Management

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A procedure for land capability analysis in southern Africa, based on computer overlay techniques
Author
Hammond, C M
Walker, B H
Publisher
Landscape Planning
Publication Year
1984
Body

A versatile computerised overlay technique to analyse the capability of relatively constant and objectively measured land characteristics to sustain any defined land use was developed in FORTRAN. The mapped form of each land characteristic is stored in a data base system for subsequent use and overlay by a grid of selected cell size. Existing information is used to derive a capability value for each land characteristic, whose influence upon the overall capability is included by user-defined weighting values. The overall capability of each grid cell. is the weighted mean of the individual capability values of each land characteristic analysed. A foreclosure of options in land use is also performed. A trial run of the procedure illustrated the influence of the selected grid cell size and the weighting value. The value of a versatile capability analysis tool, able to analyse any defined land use for an area of unrestricted size, using weighting values and capability values related to existing, up-to-date information, was seen.

Language
English
Resource Type
Text
Document Type
Journal Issue/Article
Journal Volume
11
Journal Number
4
Journal Pages
269-291
Journal Name
Landscape Planning
Keywords
land use
mapping
Africa