【摘要】 研究分析了云南地区三尖杉属植物地理分布与气候和土壤因子之间的关系,结果表明:水热条件特别是极端最高温、年均降水量、最高月均温和年均温是云南三尖杉属植物分布的主要限制因子,它们的异质性可能就是造成该属植物在水平和垂直分布的差异性;三尖杉属植物对土壤因子的要求较低,是一类喜欢水湿而耐荫蔽的,广布而狭生境的珍贵药用植物。更多还原

【Abstract】 The relation between geographic distribution of Cephalotaxus in Yunnan and its environmental factors was analyzed. The results revealed that heat and precipitation are the basic limiting factors to the distribution of Cephalotaxus, especially extremely highest temperature, annual average precipitation, monthly highest average temperature and annual average temperature, whose heterogeneities maybe are the causes resulting in the different patterns in horizontal and vertical distribution of the genus. The soil condition is a non-limiting factor. Cephalotaxus is one group of shadebearing, cosmopolitan and stenoecious rare medicinal plants having a preference for moisture.更多还原