Summary of the Layer

This map shows locations of sample plots for vegetation sampling in the Satkoshia Gorge Wildlife Sanctuary in Orissa, for a biomass estimation study conducted by Foundation for Ecological Security.

Description of the Layer

A biomass and biodiversity estimation study was undertaken by Foundation for Ecological Security using satellite data and field sampling. The sample plot locations in this map also also lists of species attached to them, where one can see the individual species found in each plot according to the type.

Methodology of data generation

Biomass estimates needed to be assessed based on Normalized Difference Vegetation index derived from satellite imagery. After the initial classification of the area into different vegetation classes, a sampling strategy was devised for the study area. This was done with maximum representation of all vegetation classes and considering terrain complexity. For every sample plot, GPS readings were taken and species were enumerated. A lot of ancillary information was collected during this study where data on soils, microhabitat and anthropogenic pressures was noted. The data was then plotted in a GIS system and the species lists linked to the plot IDs.

More about Satkoshia

Satkoshia Gorge wildlife sanctuary was notified in 1976 and covers 746 sq kms. It encloses the gorge of the Mahanadi river and supports tropical and sub-tropical broad-leaf forests. Abundance and diversity analysis was conducted on the sampled vegetation data. The study concludes that biomass and biodiversity are not directly correlated in this area, and that only regeneration of forest will not enrich the diversity. The study prescribes a habitat oriented approach for management, along with community participation, so as to reduce anthropogenic impacts identified in the sampling.

References

Bormann, Ulrich 2005. A Study on Biomass and Biodiversity in the Satkoshia Gorge Wildlife Sanctuary, Orissa, India : a project report submitted to Foundation for Ecological Security.