为了摸索杉木速生丰产规律,我们到安化县几个杉木林基地对幼林生长情况进行了调查研究。现从不同营林措施对杉木速生丰产的影响,分析如下:一、不同土壤类型我区在大办杉木林基地,集中连片造大林的群众运动中,涌现了不少千亩,万亩,几万亩连成一片的杉木纯林。但是,有个别地方,不管立地条件如何,千篇一律地过份强调集中连片,树种单一化的做法是不妥当的。基地造林是百年大计,一 In order to explore the law of fast-growing and yielding Chinese fir, we went to Anhua several Chinese fir forest base on the growth of young forest were investigated. Now from different silvicultural measures on fir fast-growing yield, the analysis is as follows: First, different soil types in our district in the big cedar forest base, focus on contiguous Daelim mass movement, there have been many acres, mu, Tens of thousands of acres of pure Chinese fir forest. However, in some places, it is improper to apply too much emphasis on congenial contiguity and simplification of tree species, regardless of site conditions. Base afforestation is a hundred years plan, one