【摘要】 天山云杉 (Picea screnkiana var. tianschanica)天然分布区的下限海拔 1 4 50～ 1 80 0 m,进行速生丰产造林试验 ,结果表明 ,灌丛地横向割灌 ,纵向割灌和丛植 3种处理效果显著 ;灌丛地和欧洲山杨 (Pupulus tremula)皆伐地采用大穴整地和丛植 ,这 2种立地类型 1 5 a生的天山云杉幼树树高分别比 CK高出 40 .0 %和 46.5% ,天山云杉在不同立地类型高生长的优劣顺序为灌丛地 >欧洲山杨皆伐地 >欧洲山杨—天山云杉皆伐地更多还原

【Abstract】 The natural P.screnkiana var. tianschanica forestation on the lower limit of elevation range of 1 450~ 1 800 m. The results showed that the effect was significant by the 3 treatments of cross and straight cutting brushes along the mountain slope with motor chain saw and group planting of P.screnkiana var. tianschanica ; by big hole site preparation and group planting in the brush land and trembling poplar clear cutting slash, the P. screnkiana var. tianschanica sampling(15 a) were 40.0 % and 46.5% higher than CK. The excellent and poor consequent succession of spruce sampling growing in the different site type was brush land>trembling poplar clear cutting slash>trembling poplar> P. screnkiana var. tianschanica clear cutting slash.更多还原