文献类型：期刊文献

中文题名：杉木人工林不同发育阶段根际与非根际土壤微生物变化趋势

英文题名：THE CHANGES OF THE SOIL MICROORGANISM IN RHIZOSPHERE AND OUTSIDE IN DIFFERENT DEVELOPING STAGES OF THE CHINESE FIR PLANTATION〖KH*2D]

作者：焦如珍[1] 杨承栋[1]

第一作者：焦如珍

机构：[1]中国林业科学研究院林业研究所

年份：1999

卷号：35

期号：1

起止页码：53-59

中文期刊名：林业科学

外文期刊名：SCIENTIA SILVAE SINICAE

收录：CSTPCD;;Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：中国林业科学研究院基金

语种：中文

中文关键词：杉木;发育阶段;根际微生物;土壤微生物

外文关键词：Chinese fir plantation, Developing stage, Microorganism of rhizosphere, Soil microorganism

分类号：S791.270.2;S718.521.3

摘要：本文通过对杉木人工林不同发育阶段根际土壤和非根际土壤微生物数量及种类的研究，发现根际土壤中的细菌数量明显高于非根际土壤的，中龄杉木林根际土壤及非根际土壤中细菌数量明显低于幼龄林和成熟林，特别是在中龄杉木林根际土壤中枯草芽孢杆菌在细菌中所占比率明显低于幼龄林和成熟林的；无论是在根际还是非根际土壤中，放线菌数量的变化均无明显规律，但在类群组成上，中龄林土壤中，主要类群仅有白色类群、黄色类群和灰褐类群，而幼龄林和成熟林类群较丰富；无论是在根际还是在非根际土壤中，从幼龄到中龄杉木人工林，土壤真菌数量呈明显下降趋势，从中龄林到成熟林，则呈上升趋势，且在种类分布上，杉木中龄林根际土壤中青霉属所占比例明显高于幼龄林和成熟林的；研究结果表明，比较研究根际土壤微生物和非根际土壤微生物对于揭示杉木人工林生长发育和土壤性质变化的关系，防治地力衰退，提高林木产量，是颇有价值的。
The isolations of soil microorganism in different developing stages of the Chinese fir plantation were investigated. It was found that the amounts of rhizosphere bacteria and the bacteria in juvenile and mature stands were higher than those of non rhizosphere and the bacteria in medium stands.The amounts of actinomycetes have no significant change among rhizosphere and non rhizosphere soils.The isolations were more abundant in juvenile and maturestands than that in medium stands in which only Albosporus, Flavus, Griseofuscus were found. The amounts of fungi significantly declined from juvenile to medium stands and increased to mature stands. The percentage of Penicillium in medium rhizosphere soil is higher than those in the juvenile and mature stands. The results suggested that the comparison of the rhizosphere and non rhizosphere soils is useful to show the relationship between the change of soil characters and the Chinese fir growth, controlling soil degradation and improving production of the plantation.