Original

Abstract

The Kakodonga river basin covers an area of about 1,113 km2. The average maximum temperature is 28.50C and the minimum temperature is 18.40C. The average rainfall of the basin is 1766 mm. The present paper is an attempt to analyze spatially land-use concentration and land-use efficiency of the Kakodonga river basin. For the preparation of thematic maps, Survey of India topographic sheets and IRS P6 LISS-III imagery (2011) data are used. The land-use categories data has been collected for three years (2012-2014) at the revenue circle level from the Economic and Statistical Department of Assam. To work out land-use concentration Bhatia’s (1965) method was adopted. The major land-use categories are forest cover, area put under non-agricultural use, barren lands, permanent pastures, and other grazing lands, miscellaneous trees and groves, culturable wasteland, current fallow land, other fallow lands, and the net area sown. The land-use efficiency has been worked out taking five positive variables are net sown area, total irrigated area, area irrigated more than once, the intensity of irrigation, and intensity of crops.