http://117.252.14.250:8080/jspui/handle/123456789/6883 2026-04-05T19:44:36Z 2026-04-05T19:44:36Z National Institute of Hydrology http://117.252.14.250:8080/jspui/handle/123456789/6894 2022-06-17T21:34:58Z 2008-01-01T00:00:00Z

Contents National Institute of Hydrology

2008-01-01T00:00:00Z Mohan, S. Sekar, A. S. S. http://117.252.14.250:8080/jspui/handle/123456789/6893 2022-06-17T21:34:28Z 2008-01-01T00:00:00Z

1-Water Resources Management Under Drought Conditions. Mohan, S.; Sekar, A. S. S. Drought is one of the most disastrous natural calamities that have affected human beings, agriculture and livestock throughout the history. Drought is characterized by deficit in water availability resulting either from sub-normal rainfall, erratic rainfall distribution, higher water requirements or a combination of all these factors. Under drought conditions, the management strategies need to he different than the normal times and there is a great need to evolve planning and operation tools for the same. Drought indices, deficit of rainfall, starting period, severity and termination are the important parameters to he analyzed, in order to evolve a more realistic planning far the mitigation of the drought. In this paper, the definition of drought, identification of droughts and their characterization have been elaborated with a case study of a drought affected district. Subsequently, the important strategies for the planning and management of water resources during drought situations are highlighted.

2008-01-01T00:00:00Z Sharma, K. D. http://117.252.14.250:8080/jspui/handle/123456789/6892 2022-06-17T21:31:41Z 2008-01-01T00:00:00Z

2-Drought Mitigation in the Rainfed Regions of India. Sharma, K. D. The drought-prone areas in India suffer from spatial and temporal variations in agricultural productivity. Traditional subsistence agriculture in vogue in these regions further enhances their vulnerability to drought. Consequently. crop failures are frequent; even famine like situations are at times encountered. Based on the present scenario, strategy for drought mitigation with focus on on-farm research in a farming system perspective includes the phasing of interventions with short, medium and long-term goals. Farmers' participation in technology development, early warning, drought monitoring and decision support systems, contingency crop planning are considered important as strategic measures for mitigating the effect of droughts. Various options for soil and rainwater conservation, crop management, integrated nutrient management, development of water resources and alternate land use systems, with watershed development approach have been categorized under short, medium and long-term measures for technology development and application. We advocate agro-eco zone based consortia development and suggest a structure for On-farm research including capacity building of the farmers in drought-prone areas of India

2008-01-01T00:00:00Z Goyal, R. K. Vittal, K. P. R. http://117.252.14.250:8080/jspui/handle/123456789/6891 2022-06-17T21:27:49Z 2008-01-01T00:00:00Z

3-Water Resources Management in Hot Arid Zone of India. Goyal, R. K.; Vittal, K. P. R. Water is one of the most important natural resource for the existence and survival of any living being on the earth. It has been man's endeavor from time immemorial to utilize the available water resources. The surface and groundwater resource of the hot arid region is very poor. Rainfall is the principal source of water, which augments soil moisture, groundwater and surface flows. Agriculture and several of the other economic activities in arid areas depend on rain. During the twentieth century, the region experienced agricultural drought once in three years to every alternate year in one or the other part of the region. The overall probability of drought for the state is 47%. Every alternate year is drought year for the state. The weather condition, even in average years, for most part of the year remains too dry and inhospitable for successful growth of crops. The above scenario leads to question of risk in arid agriculture. Under such circumstances every drop of water becomes very precious and technological options like rainwater harvesting through rooftops, runoff harvesting in tanka, nadir, ponds and khadin can play a crucial role for efficient utilization of available water and drought proofing. Beside these technological options flash flood management .for groundwater recharge is the need of hour and crop planning should he based regional rainfall and soil condition instead of individual farmer's need.

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