云南省保山地区,最高海拔3780.9m,最低海拔520m;森林面积812万亩,其中,国有林,自然保护区371万亩,集体林441万亩,森林覆被率为28.4％,森林总蓄积量为4644万m~3。由于地处山区,海拔高差大,森林分布多在2000m以上的高山丛岭,主要用材树种有:云南松、华山松、铁杉、云杉、秃杉、杉木、楸木、椿木、楠木、桤木、栋类、木荷、木莲等。由于本区地理地形及冬春季节干燥的特 Yunnan Baoshan area, the highest elevation of 3780.9m, the minimum elevation of 520m; forest area of ​​812 mu, of which 371 mu of state-owned forests, nature reserves, 441 mu of collective forest, forest cover rate of 28.4%, the total volume of forest 46.44 million m ~ 3. As located in the mountainous area, the altitude difference is big, and the forest distribution is more than 2000m above the mountainous ridge. The main timber species are: Yunnan pine, Huashan pine, Hemlock, Spruce, Taiwania flousiana, Chinese fir, Alder, Dong type, Schiphol, such as Manglietia. Due to the geographical topography of the area and winter and spring dry special