CS(AR)-220 : Hydrological soil classification of Dudhnai sub basin : Assam/Meghalaya Part-I

Abstract

Hydrologic soil classification at Dudhnai sub-basin for an area of about 250 sq km has been made based on the regional information collected from various agencies supple- mented by own field & laboratory experiments on the soil samples collected from time to time. In requirement of various soil classification systems, soil properties together with other information have been studied and grouped into different classes as a reference base for future hydrological studies of the basin.

Soils. are generally heterogeneous and anisotropic. i.e. having unequal physical properties along different axes. This results nonuniform field conditions. Then the soil properties at places undergo considerable changes with time. This calls for systematic monitoring of soil parameters for its effective management. The present work has also the scope for further improvement by incorporating more and more future investigations in the basin which has been selected for long term representative basin studies.