Abstract:
A Watershed is an ecosystem whose first component consists of natural resources
vegetation, land, water, and human resources. Tabunio watershed covering an area of 62,558.56
hectares consists of 10 sub-watersheds. The Normalized Difference Vegetation Index (NDVI) is
used in vegetation density analysis. Vulnerability of environmental damage is the condition of a
region that has the potential for environmental damage due to human activities and or activities
that have the potential to cause environmental impacts.The purpose of vegetation density
analysis is carried out for the evaluation of environmental vulnerability dynamics in Tabunio
watershed, i.e: 1). Knowing changes in land cover; 2. Knowing the classification of vegetation
density; 3. Determine efforts to increase vegetation density. The benefits of this analysis are to
obtain directives that can have a positive impact on the control of flood suppliers' vulnerability and
environmental vulnerability by determining forest and land rehabilitation techniques.Based on the
results of mapping and analysis obtained: 1) changes in land cover in 2005-2020 are dominant in
forest land cover, open land, settlements, plantations, swamp farming, shrubs, and mining; 2)
Vegetation density in the upstream sub-watershed is dominated by the classification of dense and
very tight vegetation density; 3) The green revolution of the upstream watershed is dominated for
ecological purposes with dense and very close vegetation, the central part of the watershed is
dominated for ecological, economic and social with tight vegetation, downstream green revolution
watershed dominated for economic and social interests with dense and sparse vegetation.
