摸清资源,适地适树,合理布局,是林业区划的主要任务。杉树是我区的优势树种,面积408万亩,占森林总面积83.95%,蓄积量1290万立方米。建国以来共造杉木林486万亩.但保存只有197万亩,保存率40.5%,主要是对杉树要求的特定环境不够清楚所致。在林业资源调查中,我们组织联合考 Clear resources, suitable tree, reasonable layout, is the main task of the division of forestry. Cedar is the dominant tree species in my area, an area of ​​408 mu, accounting for 83.95% of the total forest area, volume of 12.9 million cubic meters. Since the founding of the PRC a total of 486 acres of fir plantation, but the preservation of only 197 acres, the preservation rate of 40.5%, mainly due to the specific requirements of the fir tree is not clear enough. In the forestry resources survey, we organize a joint test