IMPACT OF CO_2 MULTIPLICATION ON THE DIFFERENTIATION OF PHYSICAL ZONES AND THE POTENTIAL AGRICULTURAL PRODUCTIVITY IN CHINA
全球CO2倍增对我国自然地域分异及农业生产潜力的影响预测

The study of CO_2 multiplication which leads to the warming of global climate and influences the natural environment has become a main subject of the world's attention. IPCC has made a forecast. On the basis of it this paper analyses the impact of climatic change on the differentiation of the physical zones in China. Using the data of 671 meteorological stations the author has analysed the numerical indexes of temperature zones and natural regions of China, the potential agricultural productivity of various regions and the facors which influence the potential agricultural productivity and drawn up the maps which show the northward move of the temperature zones, the westward move of the precipitation regions and the change of the boundary between the dry and wet regions after the warming of the climate.All of these works are completed by using the mathematical modeling and computers. The results indicate that in China the warming of the globla climate will increase the area of warm region,improve the water conditions in the arid and semi-arid regions and increase the productivity of the land.