M. Bala Krishna Reddy

Abstract

Geographic Information Science (GIS), when used in combination with remote sensing provides a useful tool for mapping and management of rare and endangered plant species in Meghalaya, India which is a biodiversity hot spot region. The first step in this exercise is creation of polygon wise forest management inventory that would comprise details of threatened and endemic species in the area along with habitat conditions viz vegetation type, forest cover class apart from the stand characteristics namely wood volume etc. The second step is to overlay such polygons on land use classification map generated from remote sensing imageries through visual interpretation technique. Such a map created in ESRI Arc MAP would be useful to resource managers for outlining the present and future management plans towards conservation of a biodiversity rich region. A supplemental tool in this managerial exercise is visual polygon decomposition technique that provides precise information on the state of habitat and vegetation cover preservation apart from the trend it is likely to follow in the near future. Such an analysis is indispensable in areas like Jaintia hills district of Meghalaya where industrial citing activity has just begun exerting severe anthropogenic pressure on hitherto virgin habitat.

Keywords

Geographic Information Science (GIS), Endemic Species, Conservation, Visual Polygon Decomposition Technique, Remote Sensing

Full Text

     

M. Bala Krishna Reddy

Abstract

The relationship between soil and vegetation is both dynamic and temporal. The variation in soil properties across the forests in Megbalayais a result of interplay of several factors, chief among which are climate, topography, tree species composition and state of health of the sylvan ecosystem. Soil p^H had a direct bearmg on micronutrient content of the soils of the forests. Apart from the observation that certain important soil characteristics are well correlated with the vegetation types in the virgin forest tracts of Meghalaya it was also found that some secondary Dutrients and micronutrlents serve as useful indicators of state of health olthe forest ecosystems olthe State.

Keywords

Secondary Nutrients, Micronutrients, Vegetation Types. Lime Rich Forest Soils

Full Text