论文信息 - A GIS approach to desertification assessment and mapping

A GIS approach to desertification assessment and mapping

A Geographic Information System (GIS) was used together with simple ecosystem models to assist in desertification assessment and mapping. Models were developed to evaluate water erosion, wind erosion, vegetation degradation, and range utilization as desertification indicators. Iterative methods facilitated refinement and verification of models in training areas. Desertification hazard was calculated as the integration of these modeled indicators and a human settlement indicator.

J. Grunblatt | W. K. Ottichilo | J. Grunblatt | R. K. Sinange | R. Sinange

[1] D. J. Pratt,et al. Rangeland management and ecology in East Africa , 1979 .

[2] Ulf Helldén,et al. An assessment of woody biomass, community forests, land use and soil erosion in Ethiopia : a feasibiligy study on the use of remote sensing and GIS-analysis for planning purposes in developing countires , 1987 .

[3] Le Houérou,et al. Rain use efficiency: a unifying concept in arid-land ecology , 1984 .

[4] P. Little. Absentee herd owners and part-time pastoralists: The political economy of resource use in northern Kenya , 1985 .

[5] C. Hoste,et al. Rangeland production and annual rainfall relations in the Mediterranean Basin and in the African Sahelo Sudanian zone. , 1977 .

[6] J. Grunblatt,et al. A hierarchical approach to vegetation classification in Kenya , 1989 .