Water Balance Study of a Watershed of Rengma River in Golaghat District

Durlov Deka, Pulendra Dutta

Hydrological variable, Water balance, Linear programming, Optimal cropping pattern.

Water balances are vital for making judicious decisions concerning water availability, water conservation, and water management. This paper aims to identify and estimate the surplus and deficit of naturally available water during various period of the year. The volume of different hydrological variables like rainfall, runoff, evapotranspiration etc. were computed and the volume of surplus and deficit water for various periods of the year was observed. The analysis revealed that a major component of the inflow was lost as runoff, which contributes to about 64% of the total outflow, followed by evapotranspiration loss. The results highlight the necessity of efficient water management strategies in order to cater to the ever increasing demand of water among multiple users.