中国杉木研究

根据作者长期研究及大量的有关文献,综述了建国以来我国杉木研究的动态和进展。指出近期以来,杉木研究特点是基础学科的理论及其基础性研究均有所加强并取得一批成果,研究方法逐步从定性走向定量,造林、营林技术开始配套形成系列和标准化,今后研究宜着重于提高现有中、幼林的单产,选育适应于不同立地、不同培育目标的高产品系,抗性育种,杉木人工林生态系统养分循环和林地的持续利用及建立新的栽培体系等。同时建议加强研究协作,成立全国的杉木研究中心或研究协会。

THE RESEARCH OF CHINESE FIR IN CHINA

Oa the basis of the author's long-time research experiences on Chinese fir and a great number of literatures published,the research results in the fields of physiology, ecology, genetic breeding, afforestation and forest management and so on for Chinese fir are summarized. The features on the development of Chinese fir research in the past 10 years are as follows.(1) The research on the basic theory of Chinese fir has been reinforced, for example, research on biology, genetic variance, fine seeds selecting and breeding, physiological and ecological traits, productivity of plantations and nutrient circulation etc.(2) Some fruits of basic research on Chinese fir management have been achieved, for example, the district classification of Chinese fir growing regions, stand sorting system, and site index table constructing etc.(3) The research methods have developed gradually from determining the nature to determining quantity and position, for example, quantisation site index table, forest density management diagram etc. Obtained.(4) A complete set of the technical measures for Chinese fir afforestation have been established gradually and have been systematized.Generally speaking, the research on Chinese fir is still being at the beginning stage, many other productive techniques have not been resolved completely yet, some research projects need further study, some areas have remained unexplored.From now on, following fields on the Chinese fir research need deep study.(1) There are a large amount of the middle and young forests with very low yield per unit area now, what measures should be taken for improving the yield?(2) Fine seeds selecting and breeding should be suited to the requirements for the variable stands and their different applications, and at the sametime should take the responding cultural technology.(3) The soil fertility of the Chiness fir stands has been failing seriously, what shall we do to keep the Chinese fir fast-growing with high yield constantly?(4) In order to offer theoretical base for building a new cultural system, we should study in the fields of the species selecting, disposing, their level constructing and nutrients circulating from the view point of ecological system. we must strengthen the basic research, for example, on Chinese fir physiology-ecology and genetics; pay attention to collecting basic information, The author proposes that a natural research center for Chinese fir be set up so as to unify planning with due consideration for all concerned, to share the work and cooperate with one another to sped up the research work.