基于聚类分析的云南省荔枝栽培气候区划研究

 根据荔枝生长发育与气候条件的关系,确定荔枝栽培的气候区划。选择云南134个气候站点，将其中51个30年平均最低气温高于-4 ℃的气候站点划分为可栽培区，另外83个30年平均最低气温低于-4 ℃的气候站点划分为不宜栽培区。再根据19个气候要素，应用聚类分析将51个可栽培区划分为适宜区(Ⅰ),较适宜区(II),次适宜区(III)和较次适宜区(Ⅳ)等4个等级。其中，适宜区、较适宜区和次适宜区可以作为云南省荔枝生产的主要区域。

Study on Climatic Regionalization for Planting Litchi chinensis in Yunnan by Cluster Analysis

The climatic regions of planting Litchi chinensis was devided by the relationship between the growing of L. chinensis and meteorological conditions. According to the annual average lowest temperature of 30 years (AALT), 51 sites (AALT≥-4 ℃) of 134 climatic sites in Yunnan province were ranged to available planting areas and the rest of 81 sites (AALT <-4 ℃) were ranged to unavailable planting areas. Based on 19 climatic parameters, 51 available planting areas were further divided into 4 zones (the most suitable zone (I), suitable zone (II), fairly suitable zone (III) and sub-suitable zone (IV)) by cluster analysis. I, II and III zones were the main producing areas of L. chinensis in Yunnan.