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Soil Landscape Constraint Mapping for Coastal Land Use Planning Using Geographic Information System

X. Yang, J. M. Gray, G. A. Chapman and M. A. Young
Journal of Coastal Conservation
Vol. 11, No. 3 (2007), pp. 143-151
Published by: Springer
Stable URL: http://www.jstor.org/stable/27695376
Page Count: 9
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Soil Landscape Constraint Mapping for Coastal Land Use Planning Using Geographic Information System
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Abstract

The aim of the study was to delineate soil landscape constraints to various land uses for urban and regional planning in the coastal areas of New South Wales (NSW), Australia. Soil landscape units mapped at 1:100,000 or coarser were sub-divided into component facets using advanced terrain modelling techniques in a geographic information system (GIS). The output facet grids were further overlain and linked with relevant GIS layers and soil databases to derive soil landscape constraint ratings for various land use purposes such as residential development, cropping and grazing. The constraint ratings for a specific land use were calculated based on objective and rule-based assessments of soil and landscape features such as engineering hazards, intrinsic fertility, drainage and other parameters. A series of soil landscape constraint maps which portray specific land use capability have been produced for the NSW coast. The methodology developed in this study has been demonstrated to be efficient in delineating soil landscape constraints and there is over 90% agreement between the model outputs and the assessment by soil surveyors with local knowledge. The output maps show levels of unprecedented detail of soil and landscape constraint for the coast of NSW and can be readily interpreted by land use planners and land managers for sustainable land use decision making practices.

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