Journal of FARM SCIENCES, Vol 19, No 1 (2006)

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Performance Evaluation of Nala Bund

S.B. Ghule, S.N. Pawar, S.B. Yadhav, R.T. Ramteke, B.W. Bhuibhar

Abstract


The study was undertaken during 2002-03 in Dadegaon waters in Paithan Taluka of Aurangabad District -and executed by Shikshan Prasarak Mandal, Aurangabad, to evaluate the performance of nala bund and to observe the effect of nala bund on ground water recharge. The results indicated that selection of site for nala bund was correct. The storage capacity of the nala bund as determined by organization is found insufficient with respect to the expected runoff volume trom the catchment area of nala bund. The storage capacity of nala bund was 19.60 TCM as against storage requirement from hydrologic analysis of 24.60 TCM. The upstream side slopes of the earthen embankment considered by the organization was found steeper 2.5:1  against the standard requirement of 3: 1. The gross height of nala bund was found over designed. The bottom width of nala bund was found under designed. The amount of silt deposited in nala bund was 178.14 tonnes over a period of three years. The rate of erosion observed in the catchment was found to be well below the permissible limit of soil erosion. On an average the water table in the wells in the zone of influence of nala bund was found higher by 1.54 m than the water table in the wells located in out of zone of influence.

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