ARTIFICIAL RECHARGE STRUCTURES OF ERRAVANKAPALLI WATERSHED USING REMOTE SENSING AND GIS TECHNIQUES, NALLAMADA MANDAL, ANANTAPURAMU DISTRICT. A.P. INDIA

B. Ramanarasimha Rao; Dr. V. Gope Naik; Y. Supraja

Volume : IX, Issue : II, February - 2020

ARTIFICIAL RECHARGE STRUCTURES OF ERRAVANKAPALLI WATERSHED USING REMOTE SENSING AND GIS TECHNIQUES, NALLAMADA MANDAL, ANANTAPURAMU DISTRICT. A.P. INDIA

B. Ramanarasimha Rao, Dr. V. Gope Naik, Y. Supraja

Abstract :

The groundwater storage and the recharge is the fundamental component of hydrological system. It is the result of water percolating through various layers of soil, Geology, Geomorphology, Land use / Land Cover and Slope of Erravankaplli watershed due to the atmospheric precipitation and snow. The amount of percolation varies from place to place and it depends on rainfall, characteristics of soils and characteristics of Lithology, nature of Land forms, temperature and humidity. Hence the, availability of sub–surface water will also vary from place to place. In Erravankapalli watershed Nallamada mandal of Anantapuramu Average 25 years annual is 549 mm rainfall, the availability of utilizable surface water is very low. People of the watershed area have to depend on groundwater for domestic and agriculture uses. Excessive pumping of groundwater in those areas has resulted in depletion of the groundwater levels. Open lands available for natural recharge is reduced due to large–scale urbanization. Identification various feasible location and suitable structures. In order to improve the groundwater availability, it is necessary to artificially recharge the depleted groundwater aquifers.