云南省杨梅生态区划的研究

 根据杨梅对生态条件的要求及杨梅的地理分布,对云南省杨梅生态区划进行了探讨。杨梅树对低温敏感,喜冬季温暖,春、夏季湿润的气候。根据杨梅的耐寒性,极端最低气温、年降雨量及果实成熟时期（5～6月）干燥度的分布,将云南省杨梅区划分为4个区:最适宜区（I）、适宜区（II）、次适宜区(III)和不适宜区（IV）。I和II区适宜于杨梅栽培,在III区应精心选择小气候栽培杨梅,并防御杨梅受冻害。

The Climatic Ecological Regionalization of Myrica rubra in Yunnan Province

According to the ecological condition request of Myrica rubra Sieb.et Zucc. and its geographical distribution in nature, the ecological regionalzation of Myrica rubra in Yunnan Province is discussed in this paper. Chinese Bayberry (Myrica rubra) is sensitive to the lower temperature. It grows well in the place where it is warm in winter and humidity in spring and summer. According to the cold tolerance on Myrica rubra, and the extreme lower temperature, the rainfall and air aridity at fruiting periold(from May to June) of the different counties in Yunnan,the ecological regionalizations of Myrica rubra could be divided into four regions in Yunnan Province. The most suitable (I),suitable (II), subsuitable (III), not suitable (IV), regions for cultivation. Regions I and II are suited for planting. In regions III the local climate should be carefully selected to avoid winter forzen in jury. In general,it is not recommended to plant Myrica in region Ⅳ.