【摘要】 根据对陕西省辛家山林区云杉生长状况和立地条件的调查分析,作者认为林分郁闲度、土壤条件、和海拔高度对云杉的生长,都有一定关系。在幼年期,阳光充足对云杉生长有利。在海拔1400～1700m,土层深厚、排水良好的地区,人工栽植云杉能够良好生长。更多还原

【Abstract】 A definite relationship between the plantation of Chinese sprace (picea asperata)and its shade density, soil condition and altitude at Xinjiashan forest region in Shaanxi province was found. Sufficient sunsine is beneficial for the growth of young stands. It was also found that the plantion of Chinese soruce can be well grown at even lower elevation(1400-1700m) where the soil condition is suitable for the growth of Chinese spruce (sufficient depth of soil layer and well drained) .更多还原