Impacts of Air Temperature Change on the Agricultural Production and the Countermeasures in Dabeixiang of Tianjin

According to the principle of system science, using fuzzy mathematics, statistics and operation research, the impacts of air temperature change on the agriculture production in Dabeixiang of Tianjin were estimated, and the optimal countermeasures against arranging production were proposed. The results show that when the average temperature increases 1.0oC, the double cropping and/or triple cropping in two years lean year schemes would be better than the others, when the average temperature decreases 1.0 oC, the single cropping lean year scheme would be better than the others