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营造试验林时,为避免供试品种(种源、家系或无性系等)发生相互搞错的现象,我们在1983年采用了埋桩造林法,即在造林之前,在每个试验小区先埋设永久性水泥标桩一块,并标明各小区的重复号、树种和种源号等,然后再按标桩上指定的号码进行栽植,“对号入座”。以后标桩长期保留,如有损坏,及时补上。在每次观察测定时,亦按标桩上的号码上进行,设计图纸带上山仅作为必要时查考之用。这给造林和以后长期的观察测定带来了很大的方便。 一、水泥标桩的制作 (一)规格 标桩长40厘米,宽10厘米,厚8厘米,刻字的一头平顶,入土的一
In order to avoid the occurrence of mutual mistakes in the test varieties (provenances, pedigrees or clones, etc.) when we built the experimental forests, we adopted the method of buried piles and afforestation in 1983, that is, before each afforestation, we buried in each experimental plot Permanent cement stakes pile, and indicate the district’s repeat number, tree species and provenance number, and then according to the designated number on the stakes planted, “opposite sign.” Stakes after long-term retention, if damaged, timely replenishment. In each observation and determination, but also according to the number of stakes on the design drawings with the mountain only as necessary to check purposes. This brings great convenience to afforestation and subsequent long-term observation. First, the production of cement standard piles (A) Specifications The standard pile length 40 cm, width 10 cm, thickness 8 cm, a flat-topped lettering, a