effect of heat wave and cold wave on crop health in india
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Climate change has effect on the availability of resources particularly water. Changes in the biosphere, biodiversity and natural resources are adversely affecting human health and quality of life. Climate change has multi-dimensional effect on agriculture like pest and disease outbreak, rainfall, temperature and also on soil factors. This also effect on mean sea level, industrial sector, settlement and society. India will also begin to experience more seasonal fluctuations in temperature with more warming in the winters than summers. Longevity of heat waves across India has extended in recent years with warmer night temperatures and hotter days, and this trend is expected to continue. The average temperature change is predicted to be 2.33 °C-4.78 °C with a doubling in CO2 concentrations. These heat waves will lead to increased variability in summer monsoon precipitation, which will result in drastic effects on the agriculture sector in India. Climate models predict a gradual rise in carbon dioxide (CO2) concentration and temperature across the globe. These models, however, are not very precise in predicting future changes in local weather conditions. Local weather conditions such as rain, temperature, sunshine and wind, in combination with locally adapted plant varieties, cropping systems, and soil conditions can maximize food production as long as plant diseases can be controlled.
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