Land Suitability Evaluation of Tea (Camellia sinensis L.) Plantation in Kallar Watershed of Nilgiri Bioreserve, India

Nilgiri tea is a vital perennial beverage variety and in high demand global markets due to its quality medicinal value. In recent years, the cultivation of plantations has decreased extreme climate prolonged practice same area, decreasing taste quality. this scenario, land suitability analysis best approach evaluate bio-physiochemical ecological parameters plantations. The present study aims identify delineate appropriate suited for within Kallar watershed using geographic information system (GIS) multi-criteria evaluation (MCE) techniques. This utilises various criteria, such as soil (texture, hydrogen ion concentration, electrical conductivity, depth, base saturation, drainability), (rainfall temperature), topography (relief slope), use, normalised difference vegetation index (NDVI), growing based on Food Agricultural Organization (FAO) guidelines rainfed agriculture. resultant layers were classified into five classes, including (S1), moderate (S2), marginal (S3) which occupied 16.7%, 7.08%, 16.3% land, whereas currently permanently not suitable (N1 N2) classes covered about 18.52% 29.06% total area. provides sufficient insights decision-makers farmers support them making more practical scientific decisions regarding that will result increased production tea, prevent protect human life from harmful diseases.