Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
pan evaporation and seepage rate from the soil strata, the cumulative runoff potential to be
harvested in the farm pond was estimated. Accordingly, the sizes of farm pond as per catchment
area were worked out.
Result
The hydrologic soil group for the region was observed as ‘D’ with slope range of 0.5-3.5 %.
The weighted curve numbers for Parbhani station were calculated as 77, 89 and 95 for AMC I,
II and III respectively. From the rainfall data of the last 11 years (2011-2021), the daily surface
runoff was estimated and thereby, the yearly runoff was calculated. The average runoff data
was used for farm pond designs. Data revealed that the average rainfall causing runoff was
found to be 853.43 mm which generated mean runoff of 257 mm i.e. 28.31 per cent.
Year-wise rainfall, runoff and % runoff
Year Annual rainfall (mm) Rainfall
(mm)
Runoff (mm)
% Runoff
2011 677.5 636 164 25.78
2012 688.2 678 140 20.64
2013 1217.1 1134.4 345 30.41
2014 560.2 422.7 60 14.19
2015 574.8 414.1 70 16.90
2016 1159.5 1142.1 385 33.70
2017 995.7 987.2 375 37.98
2018 808.1 802.4 304 37.88
2019 968.6 950.8 299 31.44
2020 1098.7 1023.6 376 36.73
2021 1719.3 1196.4 309 25.82
Average 951.60 853.43 257 28.31
Maximum 1719.3 1196.4 385 37.98
Runoff
500
400
300
200
Rainfall-runoff relation-Parbhani
y = 0.4043x - 88.882
R² = 0.8687
100
0
0 200 400 600 800 1000 1200 1400
Rainfall
Resilience through land and water management interventions, water management and governance
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