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母生(Homalium hainanense Gagnep)产于我国海南岛,为特类用材树种。据不完全的统计,海南岛现有母生人工幼林5万多亩。目前在不少人工幼林中,常有生势衰退的现象。为了解立地条件与母生生长的关系,曾于1972—1975年,在海南岛主要母生栽培区进行适地适树调查,共计标地42块,每木检尺5536株,解析木55株及相应的土壤调查分析。本文仅就土壤条件与母生生长关系,作如下粗浅分析。限于水平及收集的资料不全,许多问题,有待今后在生产实践和科学试验中进一步认识修正。
Mother (Homalium hainanense Gagnep) produced in China’s Hainan Island, for the special timber species. According to incomplete statistics, Hainan Island has over 50,000 mu of artificial parent plantation. At present, in many artificial young forests, there is often a phenomenon of recession. In order to understand the relationship between the site conditions and the growth of motherhood, a suitable tree survey was conducted in main mother-growing areas in Hainan Island from 1972 to 1975. Total 42 sites were marked, And the corresponding soil investigation and analysis. This article only on the relationship between soil conditions and mother growth, the following superficial analysis. Limited to the level and incomplete information collected, many problems to be further revised in production practice and scientific experiments.