A Study of Hydrological Parameters in Krishna District, and Hrapradesh

Abstract

Groundwater percolation is an important aspect with regard to recharge of groundwater. Infiltration of native soil plays an important role in this regard. It depends on nature of soil, catchment area, topography, soil properties etc. Information on the infiltration trends at a given location will help in understanding the rate of infiltration at any time. Further, the groundwater depth and its quality are dependent on season of the year. The present study is carried out during Dec 2018 to March 2019 and aims to (i) determine infiltration of open wells at two locations in Nuzividu and Tiruvuru of Krishna district and develop empirical models for assessment of infiltration rates at these locations based on double ring infiltration tests (ii) determine the type of soil and correlate with the infiltration obtained from filed studies (iii) determine the depth of groundwater, its seasonal fluctuations and the corresponding variations of water quality. The study revealed that (i) the soil is silty clay (ii) minimum infiltration rate is < 5mm/hr at each of the locations (iii) seasonal variation of groundwater quality is ascertained (iv) the infiltration trends can be assessed using the empirical models developed for this purpose at these locations.

Keywords: Infiltration, fluctuation of groundwater quality, fluctuation of groundwater depth, empirical model, soil classification