论文部分内容阅读
本文报道了1980～1988年间26个产地的华山松实生苗和幼树的冻害情况。看到原产云贵高原亚热带山区的华山松,引种到暖温带气候区种植极不抗寒,基本不能越冬。云贵高原区域内各种源的抗寒性也有某种程度的差异,尤以西部(云南保山地区)最弱;东部和北部(云南北部、四川西南部和贵州西部)较强。因而不经试验,不宜把云贵高原华山松种子调入暖温带使用。
This article reports the freezing injury of Pinus armandi seedlings and saplings in 26 producing areas from 1980 to 1988. See the native Yunnan-Guizhou Plateau Subtropical Mountain Huashan pine, introduced to the warm temperate zone planting very cold, the basic can not wintering. The cold resistance of various sources in the Yunnan-Guizhou Plateau is also somewhat different, especially in the western (Baoshan, Yunnan) region; the eastern and northern regions (northern Yunnan, southwestern Sichuan and western Guizhou) are stronger. Therefore, without trial, it is not appropriate to transfer the Huashan pine seeds of Yunnan-Guizhou Plateau into the warm temperate zone.