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为了解决南方用材基地的速生丰产问题,1978年南方十四省(区)科研、教学和生产等部门,组织了协作,以适树适地为中心,从杉木产区区划,立地类型划分及林地生产力评价三个方面着手,进行为时二年半的研究。杉木立地类型的划分是以产区区划为基础的.各省对一些主要杉木产区,都作了广泛深入的调查,共设标准地2968块,做解析木1153株。采用生物统计的方法,分析了各地影响杉木生长的主导因素,确定了立地类型的分类系统,并评定了生产力。本文是在各省(区)研究的基础上,汇总成全国的统一方案,确立全国的分类系统,提出立地类型划分的原则、依据和方法。
In order to solve the problem of fast-growing and high-yield in the southern timber base, in 1978, the departments of scientific research, teaching and production in 14 provinces (districts) of the southern part of the country organized and coordinated the research on the distribution of Chinese fir plantations, site types and forest land Productivity evaluation of three aspects, for a period of two and a half years of research. The classification of the site types of Chinese fir is based on the zoning of producing areas, and the provinces made extensive and in-depth investigations on some major fir producing areas, setting 2968 standards in total and 1153 for analyzing wood. Using biometric methods, the dominant factors influencing the growth of Chinese fir were analyzed. The classification system of the site type was determined and the productivity was assessed. This article is based on the research of all provinces (districts), which is integrated into the unified plan of the whole country, establishing the national classification system, and putting forward the principle, basis and method of site type division.