西藏河谷地区农业气候区划分探讨

Agricultural Climatic Region Classification in the River Valley Area in Tibet

选用１１个影响作物生长发育的气候因子，利用１６个气象台站约２０年的平均气象资料，分别采用华德法、重心法、类平均法和可变类平均法进行系统聚类，将西藏河谷地区农业气候区分为５个农业气候类型，并对其区划结果进行了讨论。

Agricultural climatic region in the river valley area in Tibet was classified into 5 patterns on the basis of 11 climatic factors which affected the crop growth, systematic collection and analysis of about 20-year climatic references from 16 wheather stations with the methods of Ward's,Centroid,Group average linkage and Flexible group average linkage. Also the classification results were discussed.