杉木速生丰产组装示范林的营造与生长——福建明溪夏阳示范林调查初报

Cultivation of Assembling Demonstration Plantation of Fast Growing and High Yield Chinese Fir and Its Growth ——A Preliminary Report of the Investigation on the Demonstration Plantation in Xiayang Area, MingXi County, Fujian Province

根据闽北地区的自然条件,营林水平和杉木生产习惯,分别不同地位指数级和培育目标,设计了六种杉木组装造林模式,分别提出了不同的营林技术措施和生长量。从1987年开始,五年共造林2000亩。各种造林模式早期（3～4年）的生长尚无显著差异;树高生长的标准差在0.5～1.0m范围,变异系数大小相差8％,而胸径生长的标准差为1～2cm,变异系数在20～30％的范围。文章提出为维护地力,应着手研究少耕或免耕的“生态经济型”的载杉新模式。

In the light of the natural condition, forest management level and Ch-inese fir production practice in the north of Fujian Province, six Chinese fir assembling cultivation patterns have been designed for different index orders and culturerpu poses for which different management techniques and growth volumes are presented.