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本文以主成分分析法,将我国油茶产区216个测候站,按所选用的12项气候因子,作成分布序列,并利用测站在样品空间之分群,划定油茶栽培地理气候区。年均温、一月均温和夏季降水量之区域性变异,构成第一及第二主成分,为油茶地理气候区划分的基础。如此计分为北、中、中南、南、西五个大的栽培地理气候区。中区又以花期降水(构成第三主成分)这一因素,将湘西、黔东、鄂西南单独标出。北区属过渡的亚热带气候,中区属典型亚热带气候,中南区为中亚热带向南亚热带过渡型气候,南区为高温高湿型南亚热带气候,西区为夏雨型气候。
In this paper, principal component analysis is used to determine the climatic and climatic zones for the cultivation of Camellia oleifera, using 216 climatic stations in the production areas of Camellia oleifera as the distribution sequence according to the selected 12 climatic factors. The annual variation of mean annual temperature and the mean monthly summer precipitation in January are the main components of the first and the second principal components, which are the basis of the geographical division of Camellia oleifera. So scored as North, Central, South, South, West five big cultivation geography and climate zone. The Central District again flowering (constitute the third principal component) of this factor will Xiangxi, Qiandong, Southwest Hubei separately marked. The northern part of the transitional subtropical climate, the Central Region is a typical subtropical climate, the Central South is the transitional subtropical to subtropical climate, the South is a high temperature and humidity South subtropical climate, the West is a summer rain type climate.