Kumar, C. and Murthy, H.G.S. and Sathishkumar, U. and et al, . (2016) Assessment of Hydrological Parameters for Efficient Management of Watersheds in Karnataka. Mysore Journal of Agricultural Science, 50 (1). pp. 73-87.
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Abstract
Integrated watershed management programme (IWMP) is one of the premier programme executing by Government of India (GOI) in all the states from last decade to mitigate the impacts of climate change in agriculture to augment the livelihood in rural areas. To understand the impacts, efficiency and management of soil and water conservation (SWC) structures under IWMP, Watershed Development Department (WDD), Karnataka, have developed a research strategy in characterize the diagnostic relationship correlating the rainfall to the surface runoff, soil and nutrient loss and potential recharge of pre and post treatment in twenty six representative watersheds in twenty six districts of Karnataka. The hydro-meteorological dynamicsreviles that the highest annual precipitation (n=4 years) of 3480 mm and at the lowest of 380 mm in Humid to arid regions. Combination of high temporal variability in rainfall and spatial heterogeneity of hydro-meteorological properties frequently causing the drought will impact on rainfed agriculture, ground water extractions for irrigation and their hydrological regime particularly in sub-humid to arid regions. High intensity rainfall causes floods, landslides, erosion and land degradation are experienced in some of the districts of Karnataka. Hydrological characteristics of the soil and water conservation structures in the study area inferred that a reduction of surface runoff, soil loss and improvement in potential recharge of the ground water regime will take place with a favourable rainfall year. In this context a detailed analysis of rainfall pattern, runoff, silt estimation, nutrient loss, ground water dynamics and the impacts of SWC measures have been summarized to improvise the efficient management.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Integrated watershed management programme, Premier programme executing, Climate change in agriculture |
| Author Affiliation: | Watershed Development Department, Government of Karnataka, Cauvery Bhavan, Bangaluru-560 009 |
| Subjects: | Agricultural Engineering |
| Divisions: | General |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 14 Nov 2016 10:51 |
| Last Modified: | 14 Nov 2016 10:51 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/14524 |
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