HYDROLOGICAL INVESTIGATION OF KAJALESHWAR MICRO WATERSHED FOR GROUNDWATER DEVELOPMENT AND CROP PLANNING.
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Date
2019-09-13
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Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra.
Abstract
Hydrological investigation of Kajaleshwar micro watershed was carried out for groundwater development and crop planning. Geospatial Techniques like Remote Sensing (RS) and Geographical Information System (GIS) were used for preparing thematic maps. The research work was undertaken with objectives to prepare the thematic maps of the study area i.e. Kajaleshwar micro watershed, to study the impact assessment of rainwater harvesting structures i.e. CNB’s on groundwater fluctuations and also suggestion of crop planning. Thematic maps including land use/land cover map, soil texture, DEM, and slope maps were generated using RS and GIS technique for the micro watershed. According to the maps generated for the watershed, agriculture area, waste land and built up land was calculated. The soil texture of the watershed was also analyzed. The elevation and slope of the watershed was studied using thematic maps. The observations of wells and CNB’s were monitored and monthly recharge was checked. The aquifer properties i.e. hydraulic conductivity, transmissivity and specific yield were determined. Average hydraulic conductivity of Kajaleshwar micro watershed was 7.83 ×10-4 (m/s), average transmissivity of Kajaleshwar micro watershed was 5.312 × 10-3 (m2/s) and average specific yield of Kajaleshwar micro watershed was 13.33 % were observed for the micro watershed. The runoff of the watershed was calculated by SCS curve number method. The storage capacity of CNB’s was calculated. From the results, it was observed that due to construction of water conservation structures, the water availability was increased and the farmers were benefitted and for the rainfed agriculture areas of the micro watershed crop planning was suggested. The study was therefore helpful in sustainable development of the natural resources of the micro watershed.
Description
The present study evaluated Impact of rainwater harvesting structure on groundwater seasonal fluctuations by estimating runoff of the study area, the storage capacity of CNB’s and by monitoring the water level in the wells monthly. It was found that due to rainwater harvesting structure the water level in the wells increased and water is available to the crops during rabi season. On the basis of water availability crop planning was suggested.
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Citation
DABRASE SUMIRAN.S.2019.Hydrological Investigation of Kajaleshwar micro watershed for groundwater development and crop planning. Department of Soil and Water Conservation Engineering, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, M. Tech. 2019. Print. xiii, 87p. (Unpublished).