油茶地理气候区划分的研究

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。

STUDIES ON THE SCHEME OF GEOGRAPHICAL CLIMATIC REGIONS FOR OIL-TEA CAMELLIA

Principal component analysis was used to ordinate 216 weather stations in area of oil-tea camellia, and to group them into geographical climatic regions. Regional variation of temperature and summer precipitation show their significance in the first and second components which have been used to stratify the climatic regions. A scheme of 5 geographical climatic regions has been proposed, namely, northern region (N), central region (C), central southern region (CS), southern region (S) and western region (W).