关键词: CO₂倍增, 自然地域分异, 农业生产潜力

Abstract: The study of CO₂ 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.

Key words: CO₂ multiplication, differentiation of physical zones, potential agricultural productivity