Use of Landsat ETM+ data for detection of potential areas for afforestation
The estimation of potential areas for afforestation (PAAs) provides the information base for planning, management and monitoring of environmental issues. A remotely sensed Landsat Enhanced Thematic Mapper Plus (ETM+) dataset was used for detection of PAAs. The existing forest densities in the study area were classified using the Normalized Difference Vegetation Index (NDVI), whereas soil moisture was based on distribution of the Soil Wetness Index (SWI). A combined map of NDVI and SWI was produced. Areas showing adequate soil moisture with inadequate/thin forest density on the combined map were considered as PAAs. Computation revealed that approximately 13% of the area under review had potential for dense afforestation, 27% for medium to dense afforestation and 53% for grasses. The methodology formulated in the present study can be used as a rapid assessment tool prior to afforestation planning.
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Document Type: Research Article
Affiliations: Department of Geography, Arts, Commerce and Dadasaheb Rupwate Science College Akole, Ahmednagar 422601, Maharashtra, India
Publication date: 2009-01-01