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Land Resource and Hydrological Inventory of Tadakal Sub-watershed for Watershed Planning and Development Koppal Taluk, Koppal District, Karnataka (AESR 3.0)

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Title Land Resource and Hydrological Inventory of Tadakal Sub-watershed for Watershed Planning and Development Koppal Taluk, Koppal District, Karnataka (AESR 3.0)
Not Available
 
Creator Rajendra Hegde, K.V. Niranjana, S. Srinivas, B.A. Dhanorkar, R.S.Reddy and S.K. Singh
 
Subject Details of Hydrology, Rainfall and evaporation characteristics, Budyko curve, Water budget Rain water harvesting – Sujala-III Project.
 
Description Not Available
The average annual rainfall of 631 mm in the Tadakal sub-watershed as recorded from the Alavandi station data by KSNDMC.
60%, 21% and 19% of the annual rainfall occurs during kharif, rabi and summer seasons respectively and exhibited a higher temporal variability.
The evapotranspiration estimation tool developed indicates that the watershed water balance is in deficit. The cropping & irrigation choices are inappropriate and needed to be altered.
The estimated runoff available to use is 2 mm for an average annual rainfall of 584 mm (2009-2017). The utilizable groundwater is 31 mm (70% of 44 mm recharge estimated). This means the total available water resource combining the soil moisture store for kharif & rabi (245 mm) and utilizable runoff plus recharge is 278 (=245+31+2)
The average actual evapotranspiration estimated in the watershed based on the current land use and irrigation practices for the kharif and rabi seasons is 500 mm. Hence the amount of water use for kharif and rabi seasons may be estimated as 625 mm (i.e 125% of AET). This demand for the two seasons is higher by 347 mm, i.e. (625-278). The AET in June-Sept months is more than rainfall. Hence, there is a less opportunity to harvest the excess water through watershed management practices for utilizing during rabi season.
The total number of wells present in Tadakal Sub-watershed as per LRI data are 59 (Borewells). The groundwater level was found from the data obtained from KSNDMC for the nearest station Hireshindhogi . Deepest level was found in 2009 year.
Watershed Development Department, Government of Karnataka (World Bank Funded) Sujala –III Project
 
Date 2021-07-24T09:05:29Z
2021-07-24T09:05:29Z
2019-12-31
 
Type Project Report
 
Identifier Rajendra Hegde, K.V. Niranjana, S. Srinivas, B.A. Dhanorkar, R.S.Reddy and S.K. Singh (2019). “Land Resource and Hydrological Inventory of Tadakal Sub-watershed (SWs) for Watershed Planning and Development, Koppal Taluk, Koppal District, Karnataka”, Sujala SWs-LRI Atlas No.54, ICAR – NBSS & LUP, RC, Bangalore. p.39.
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/49834
 
Language English
 
Relation 54;
 
Publisher ICAR::National Bureau of Soil Survey and Land Use Planning, Regional Centre, Bengaluru & Watershed Development Department, Government of Karnataka (Sujala-III Project)