Meghalaya - Ministry of Environment and Forests

CONTENTS1.0 INTRODUCTION1.1 Wetlands1.2 Mapping and geospatial techniques1.3 Wetland Inventory of India2.0 NATIONAL WETLAND INVENTORY AND ASSESSMENT2.1 Wetland Classification System2.2 GIS database contents3.0 STUDY AREA4.0 DATA USED5.0 METHODOLOGY5.1 Creation of spatial framework5.2 Geo-referencing of satellite data5.3 Mapping of wetlands5.4 Conversion of the conformation into a vector layer5.5 Generation of reference layers5.6 Coding and attribute scheme5.7 Map composition and output6.0 ACCURACY ASSESSMENT7.0 WETLANDS OF MEGHALAYA: MAPS AND STATISTICS7.1 District-wise Wetland Maps and Statistics8.0 MAJOR WETLAND TYPES9.0 IMPORTANT WETLANDS OF MEGHALAYA10.0 SOI-MAPSHEET WISE WETLAND MAPS (selected sheets)ReferencesAnnexure–I: Definitions of wetland categories used in the project.Annexure–II: Details of district information followed in the atlasList of FiguresFigure 1: Spectral Signature of various targetsFigure 2: Various land features as they appear in four spectral bands and in a typical three band FCC.Figure 3: Location mapFigure 4: Spatial framework of MeghalayaFigure 5: IRS P6 LISS-III coverage of MeghalayaFigure 6 : IRS LISS-III FCC (25 March 2007 and 25 November 2007)Figure 7: Flow chart of the methodology usedFigure 8: Steps in the extraction of wetland componentsFigure 9: Various combinations of the indices/spectral bands used to identify wetland componentsFigure 10: Type-wise wetland distribution in MeghalayaFigure 11: District-wise wetland distributionList of TablesTable 1: Wetland Classification System and codingTable-2: Satellite data usedTable 3: Qualitative turbidity ratingsTable 4: Area estimates of wetlands in MeghalayaTable-5: District-wise wetland areaTable 6: Area estimates of wetlands in West Garo HillsTable 7: Area estimates of wetlands in East Garo Hills