Role of Climate Change in Crop Modeling

In recent years there has been a growing concern that changes in climate will lead to significant damage to both market and non-market sectors. The climate change will have a negative effect in many countries. But farmers adaptation to climate change-through changes in farming practices, cropping patterns, and use of new technologies will help to ease the impact. The variability of our climate and especially the associated weather extremes is currently one of the concerns of the scientific as well as general community. The application of crop models to study the potential impact of climate change and climate variability provides a direct link between models, agrometeorology and the concerns of the society. Tables 2 and 3 present the results of sensitivity analysis for different climate change scenarios for peanut in Hyderabad, India. As climate change deals with future issues, the use of General Circulation Models (GCMs) and crop simulation models proves a more scientific approach to study the impact of climate change on agricultural production and world food security compared to surveys.

Cropgro (DSSAT) is one of the first packages that modified weather simulation generators/or introduced a package to evaluate the performance of models for climate change situations. Irrespective of the limitations of GCMs it would be in the larger interest of farming community of the world that these DSSAT modelers look at GCMs for more accurate and acceptable weather generators for use in models. This will help in finding solutions to crop production under climate changes conditions, especially in underdeveloped and developing countries.

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