云杉耐阴、耐寒,适宜于凉爽、湿润的气候,喜排水性良好、疏松肥沃的砂壤土。在河北塞罕坝林区,由于云杉在幼树期生长缓慢,经营周期长,使得林地生产效率降低,本区栽植云杉较少。为此,近几年笔者对本区云杉幼树生长缓慢的原因进行了调查。调查区域主要集中在海拔1530米左右的林区,调查 Spruce shade, cold, suitable for a cool, humid climate, Hi drainage is good, loose and fertile sandy loam. In the Saihanba forest area of ​​Hebei Province, due to the slow growth of spruce in sapling stage and long operation cycle, the production efficiency of forestland is reduced, and there are fewer spruce trees planted in this area. For this reason, in recent years, the authors investigated the reasons for the slow growth of young spruce trees in this area. The survey area mainly concentrated in the forest area of ​​about 1530 meters above sea level, and investigated