贵州东部中亚热带季风湿润区椪柑气候区划

Climatic Regionalization of Citrus in the Middle Subtropical Monsoon Wetness Areas of Eastern Guizhou Province

利用贵州省东部34个站点1981—2005年逐年的年平均气温、降水量、日照时数、≥10℃积温、极端最低气温、≥35℃极端最高气温出现的天数、1月和7月的月平均气温、4月中旬至5月中旬和7月中旬至11月中旬的积温和降水量以及4—10月降水量、3—5月和7—10月的日照时数共15个气候变量进行经验正交函数分解,确定柑气候区划指标,应用模糊聚类分析,将贵州省东部中亚热带季风湿润区划分为4种不同类型的椪柑气候区,其结果指出了贵州东部椪柑生产布局中的问题,为贵州甚至西南地区椪柑产业基地建设提供了科学依据。

Based on 34 stations data in Eastern Guizhou from 1981 to 2005, fifteen climatic factors, including the annual mean temperature, precipitation, sunshine hours, ≥10℃ accumulated temperature, extreme minimum temperature, ≥35℃ extreme maximum temperature days, January and July monthly mean temperature, accumulated temperature and precipitation in mid-April to mid-May and mid-July to mid-November, April to October monthly precipitation, March to May and July to October sunshine hours, were analyzed with EOF to identify the index of climatic regionalization. Four types of climatic areas for citrus in the middle subtropical monsoon wetness of eastern Guizhou were studied by fuzzy assemble analysis. The regionalized results provide a scientific basis for citrus planting in Guizhou and southwestern area of China.