长白山区作物气候生产力及其地理分布的研究

本文建立了长白山区玉米、水稻和大豆的气候可能产量模式和地理分布模型,计算了各地的气候生产潜力,并进行了地形影响订正。结果表明,长白山区主要农作物气候生产力的地理分布特征主要取决于地势、地形和经度,气候生产力随着海拔的升高按照三次抛物线函数递减,随着经度的升高按照线性函数递减。主要山体的南、西南坡气候生产力较高,北、东北坡气候生产力较低。该项研究为长白山区农业立体开发提供了综合气候生态依据。

A Study on the Crops' climate and geographical Distribution in Changbai Mountain Areas

In this paper,the model of climatic productivities of maize,paddy rice,soyabean,and their geographic distributive models in Chang-bai Mountain region are established. The climatic productive potentialities in every area of the mountain are estimated and the influence of relief to the productiality are revised. The climatic productivity reduces by parabolical function as elevation rising and reduces by linar function as longtitude increasing. The influence of the orienations of main ranges to the productivity is about 5-10 percent,the productivity in south and south west slops is higher than that in north and north east. The productivities are higher in the west mound zones,lower in middle and lower mount areas,and lowest in the higher elevatove zones. It is that,the synthetic agroclimate resource in the west mound zones are more suitable for the crops cultivate than that in the middle and higher zones. The suitability of the synthetic climatic resource in different areas to different crops is variational. For example,the resources in the west mound zones are of great advantage to maize and paddy rice,the middle elevation zones are of great advantage to paddy rice,and the higher elevation mountain areas are of great advantage to soyabean. The results would be useful for the efficient exploitation of the climatic resoure and the rational adjustment of agricultural distributoin in Changbai Mountain region.