International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 5
First page : (1521) Last page : (1528)
Article doi: http://dx.doi.org/10.18782/2320-7051.5944

Management Option for Support to Agriculture and Food Security under Climate Change: A Review

Shankar Ram* and Vimal Kumar
Department of Soil Science & Agricultural Chemistry, IAS, BHU, Varanasi-221005
*Corresponding Author E-mail: shankarram32@gmail.com
Received: 25.09.2017  |  Revised: 20.10.2017   |  Accepted: 23.10.2017  

 ABSTRACT

Agriculture and food security are key sectors for intervention under climate change. Climate change effects on agricultural production directly (e.g. soil, water and crops) and indirectly (e.g. farming/cropping system, post harvest losses and land use). Agricultural production is highly vulnerable even to 2ºC (low-end) predictions for global mean temperatures in 2100, with major implications for rural poverty and for both rural and urban food security. World agriculture is at a crossroads and has limited resources. It must produce more from less per capita land and water resources and under changing and harsh climate. Conservation agriculture is a part of sustainable agriculture, aiming at optimizing yields and profits but also at protecting land resources and the environment. Ecohydrology, a study of interaction between ecosystem and hydrology, has an important role to play in advancing food security under changing climate by minimizing the risks of agronomic/pedological drought. Specific interactions involving hydrology and agro-ecosystems relevant to food security are the choice of management systems which may minimize losses of water by surface runoff and evaporation and maximize storage of soil-water in the root zone. The goal is to increase ‘‘green water’’ by judiciously managing ‘‘blue water’’ and recycling ‘‘gray water’’. Therefore, the objective of this article is to describe strategies of advancing food security in an era of rising demands, declining and degrading soil/water resources, and warming and uncertain climate.

Key words: Climate change, agricultural production, Ecohydrology, green water and food security

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Ram, S. and Kumar, V., Management Option for Support to Agriculture and Food Security under Climate Change: A Review, Int. J. Pure App. Biosci.5(5): 1521-1528 (2017). doi: http://dx.doi.org/10.18782/2320-7051.5944