一、概述1975年冬,我省受寒潮侵袭,使一些外来亚热带树种和部分乡土树种受害,受害情况是历史上罕见的,损失及影响甚大。1976年4、5月间,我所组织了一次调查,调查地点有开远、泸西、潞南、宜良、昭通、鲁甸、楚雄、昆明等地,并沿途进行了观察,以加深点上的调查概念。此外,还了解了一些地区,如文山、蒙自、建水、个旧、祥云、大理、丽江、禄劝等,得到这些地区林业单位及气象站的 I. Overview In the winter of 1975, the province was hit by the cold wave, which caused the victimization and victimization of some exotic and subtropical tree species and some native tree species. The loss and impact were huge. In April and May 1976, I organized a survey to investigate the locations of Kaiyuan, Luxi, Luonan, Yiliang, Zhaotong, Ludian, Chuxiong and Kunming along the way to deepen the point Survey concept. In addition, some areas, such as Wenshan, Mengzi, Jianshui, Gejiu, Xiangyun, Dali, Lijiang and Luquan etc, were also known to obtain forestry units and weather stations in these areas