Analysis Of Biomass Degradation As An Indicator Of Environmental Challenge Of Bilate Watershed Using Gis Techniques

Advancement in spatial data processing especially using GIS techniques hasrnbeen playing an important role in different applications. Multiple sourcernspatial and non-spatial data can be processed for the analysis of spatiotemporalrnconditions of a given area. Having such an approach in mind thernBilate Watershed Biomass is analysed using multi-temporal Landsat imagesrnacquired in 1973, 1986 and 2001. Such data are processesed using digitalrnimage processing techniques including NDVI and Tasselled Cap analysis.rnBesides, different vector data are extracted from the images as well as otherrntopographic and thematic maps. Land use land cover of the watershed isrninterpreted and based on that the level of biomass degradation is analysed.rnUsing the integrated spatial information, decision support system has beenrnapplied for the identification of priority areas to be conserved due to theirrnsever damage. The study identified major causes and effects of biomassrndegradation of the watershed.rnKey Word: Remote Sensing, GIS, Biomass, Environment, Degradation,rndecision making, conservation multitemporal, multispectral,rnland use, land cover.

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