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研究应用BIOLOG技术,对油松、虎榛子不同林型根际土和根围土微生物功能多样性进行了测试,目的是了解油松、虎榛子不同林型中微生物功能多样性变化规律,最终探明在自然森林生态系统中虎榛子的存在对油松的促生作用机理。结果表明:虎榛子纯林根际土的AWCD值增长的最快;微生物群落多样性指数和群落主成分分析都显示混交林根际土中的微生物最为稳定;主成分分析显示,起不同生态作用的主要为糖类,其次是羧酸类、氨基酸类和多聚类化合物。
The BIOLOG technology was applied to test the functional diversity of rhizosphere soils and rhizosphere soils of Pinus tabulaeformis and Hazelnut, so as to understand the variation of microbial diversity in different forest types of Pinus tabulaeformis and Hazelnut. Finally, The mechanism of promoting growth of Pinus tabulaeformis by tiger hazelnut in natural forest ecosystem. The results showed that the AWCD value of rhizosphere soil of Pinus hazelii grew fastest among the rhizosphere soil of Pinus hazelii. Microbial community diversity index and community principal component analysis showed that the microorganisms in the rhizosphere soil of mixed forest were the most stable. The principal component analysis showed that the rhizosphere soil played different ecological roles The main carbohydrates, followed by carboxylic acids, amino acids and multi-class compounds.