1　材料与方法在绥棱、通化、南岔、美溪、东京城、桦南等地调查红皮云杉人工林临时标准地 130余块 ,标准地分布在各种立地类型上 ,每种立地至少有 3个重复 ,林龄为 2 2～ 35年 ,样地面积 0 .0 4～ 0 .1hm2 ,样地林分为郁闭度均在 0 .7以上的纯林 ,株数不少于 80株 ,林分只采用 1 Materials and Methods 130 temporary plots of Picea mongolica plantations were surveyed in Sulei, Tonghua, Nancha, Meixi, Tokyo, Huanan and other places. They were distributed on a variety of site types, At least 3 replications, with a forest age of 22 to 35 years and a sample area of ​​0 .0 4 to 0 .1hm2, are planted in a pure forest with a canopy closure degree of 0.7 or more with a plant number of not less than 80 Strain, stand only