Groundwater modelling to quantify the effect of water harvesting structures in Wagarwadi watershed, Parbhani district, Maharashtra, India
✍ Scribed by K. P. Gore; M. S. Pendke; V. V. S. Gurunadha Rao; C. P. Gupta
- Book ID
- 101282494
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 326 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0885-6087
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✦ Synopsis
Marathwada Agricultural University, Pharbani, has developed about 560 hectares of Wagarwadi watershed in Pharbani district since 1987. Groundwater monitoring on 16 observations wells at weekly intervals commenced in January 1992, and rainfall and pan evaporation has been measured daily at a hydrometeorological station situated in the nearby university campus. Aquifer parameters, namely, transmissivity and speci®c yield, have been estimated by carrying out a pumping test on a large diameter well. Groundwater recharge resulting from rainfall has been estimated using a water balance model of the soil moisture zone considering soil zone thickness and crops grown. The SCS (Soil Conservation Service) curve number method was used for surface runo estimation. The groundwater ¯ow model has been constructed using the nested squares, ®nite dierence method. Nested square meshes of sizes 160 m  160 m and 80 m  80 m have been used and the steady-state condition of aquifer system was simulated in the model assuming the June 1992 water level con®guration under equilibrium conditions. The model has been calibrated for transient conditions incorporating additional seepage from the water harvesting structures and their contribution to the groundwater regime has been assessed.