秦巴山区农业气候资源垂直分层及农业合理化布局

根据１９８８－１９８９年陕西境内秦巴山区３个剖面（秦岭南坡西段，米仓山北坡和巴山北坡）的气候观测资料，建立了不同剖面主要气候要素垂直分布推算模式。由此推算出各剖面不同海拔高度各要素值。通过对７类要素进行主成分分析，以第一主成分得分值组成空间有序样本序列，采用最优分割法对此序列进行分类，划分出不同剖面的农业气候层高度。并对主要经济林果在秦巴山区种植的适宜高度进行气候适应性分析，提出不同层次农业合理化布局。

VERTICAL DISTRIBUTION OF AGRO-CLIMATIC RESOURCES AND THE RATIONAL ALLOCATION OF AGRICULTURE IN THE QINLING AND DABA MOUNTAINOUS REGION

Based on the climatic observational data of three longitudinal sections in the Qinling and Daba Mountainous Region during 1988-1989, the author firstly established some vertical distribution climatic models, with which the values of each factor were calculated in different heights. Then, according to the above-mentioned calculated results, the agro-climatic belts were divided in each section. Finally, the author analysed the climatic adaptivity to cash crops and plants in each belt and put forward some strategies for the rational distribution of agriculture in this region.