Effects of long-term and short-term changes in climate variables on cotton yield

Climate change from the previous period there have been, in recent decades, due to the intensification of human activities have created international concern and its effect on agricultural production worldwide. In this study, the combined data (panel) and the dynamic OLS (DOLS) was used to estimate. The results showed that temperature until the temperature returns over the long term, the positive impact and it has had a negative effect on the performance of cotton, the threshold temperature of 17.29 °C, The weather temperature in long-term elasticity of 0.21% is obtained, ie, at constant average annual temperature averages if the other conditions of a percent increase, the average performance of blue cotton during the period under review 0.21% increase. In short model coefficient estimates ecm (-1), equivalent to -0.46 obtained show that in the period 0.46 amount of variables to converge towards the long-run equilibrium. Finally, it is suggested to prevent temperature rise of human interference in nature (such as destroying pastures and forests) prevent and to deal with increasing temperature is recommended varieties resistant to temperature or change cropping pattern should be used.