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

ＣＯ_２倍增导致全球变暖,并对自然环境产生影响的研究已成为举世瞩目的重大课题。本文在ＩＰＣＣ预告的基础上,分析了气候变化对我国自然地域分异的影响,用６７１个站点资料分析了我国温度带及各自然地区的数量指标、各地区生产潜力及影响生产潜力的因子,将气候变暖增温、温度带北移的界线及降水区向西迁移后干湿地区界线的变化绘制成图,同时预测了农业生产潜力的未来变化。结果表明：全球变暖使我国温暖地区面积增加,半干旱及干旱区水分条件改善,有利于作物生产。

IMPACT OF CO_2 MULTIPLICATION ON THE DIFFERENTIATION OF PHYSICAL ZONES AND THE POTENTIAL AGRICULTURAL PRODUCTIVITY IN CHINA

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.