Water and land are limited natural resources to be distributed among all equitably. Rainfall is the main source of runoff. The accurate estimate of available water resource is required to meet the raising demand for water from different sectors. Morphometric parameters and runoff estimation help in appropriate planning for, optimum utilization of water, conservation, recharging of the ground water zones, reducing the soil erosion and management of floods. The study area chosen is Kabini Command area spreads in Mysore and Chamarajnagara districts. It is located between 76 0 12 ' 0 '' E and 77 0 12 ' 0 '' E longitude and 11 0 58 ' 0 '' N and 12 0 16 ' 0 '' N with an area of 5985.48 km 2 and is covered in Survey of India (SOI) Top sheet number 57H04, 57H03, 57D16, 58E01, 58A13, 57D12, 57D08, 58A05 and 58A01 on 1:50000 scale. Remote sensing and GIS techniques are used to delineate the entire catchment into 7 watersheds. Morphometric analysis is carried out at the watershed level to understand the hydrological process and to derive the inferences from the watershed parameters. The bifurcation ratio ranges between 4 to 5 which shows the geological structure do not distort drainage pattern. The drainage density varies from 1.49 to 2.65 km/km 2 indicating the area is coarse and moderate in texture. Watershed is more elongated as the elongation ratio ranges from 0.34 to 0.42. Hypsometric analysis is done for the catchment to reveal the stages of geomorphic development. Hypsometric integral quantifies the geological stages of development and erosion proness of Kabini command area. Hypsometric integral has estimated by graphical plot of measured contour elevation and encompassed area by using empirical formulae.

Water availability and water scarcity in a river basin are influenced by the geomorphological processes occurring within a river basin. Therefore, quantitative evaluation of the river basin shape provides a crucial lead in assessment of the impact of geomorphological processes on the hydrology of the basin. Arkavathy river basin has been selected for the present study. The basin with an annual average rainfall of 874.87 mm is a persistent water scarce basin located in Cauvery river basin in south India. The basin has been subjected to rapid urbanization due to which there is an increased water demand over a period of time. Hence, to tackle the growing water scarcity and reoccurrence of droughts in the basin, an attempt has been made in the present study to investigate and understand the basin morphometry and derivation of hypsometric curve of Arkavathy river basin using remote sensing (RS) and geographic information system (GIS) techniques. Quantitative evaluation of basin morphometry has been made, and the impact of basin morphometry on the peak runoff and flooding in the basin has been assessed. The basin hypsometric curve has aided in assessment of the erosion status of the basin and its impact on the risk of sedimentation on water bodies. The morphometric parameters and hypsometric curve are then analysed to investigate the potential impact of the basin morphometry on the water availability and water scarcity afflicting the basin.

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Soil quality standards are used as a means to maintain long-term soil productivity and these standards provide threshold values beyond which further alteration of soil properties would significantly change or impair the productivity potential of the soil. Suitability of the soils for a particular crop is an important factor from the productivity point of view. The importance of soil in supporting food crops requires due attention towards study of the chemical composition of soils in relation to crop needs. The study area chosen is Siddapura catchment which is a part of Harangi command area covered in Hassan, Madikeri and Mysore districts, Karnataka state. Geographically it lies between 75 0 38' E and 76 0 15' E longitude and 12 0 24' N and 12 0 46' N latitude, covering an area of 1522.4 km2. The study area is covered in

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