Rhizosphere Soil Microorganism Quantity and Enzyme Activity of 3 Tree Species in Daqing Mountain

doi:10.11924/j.issn.1000-6850.casb17060039

Abstract

Abstract: The paper aims to reveal the effect of altitude gradient on soil microorganism quantity and enzyme activity of 3 kinds of native drought-resistant tree species, and to provide a theoretical basis for accurate assessment of the role and rational utilization of different tree species in Daqing Mountain ecosystem. The authors measured and analyzed the rhizosphere soil microorganism quantity and enzyme activity by traditional plate colony technique and 96 microtiter plate fluorescence method. The results showed that: the number of microbes in the 3 species showed bacterial>actinomycete>fungi, but there were significant differences (P < 0.05); the activity of protease, N - acetylglucosidase, alkaline phosphatase and peroxidase in soil of the 3 species decreased with the increase of altitude; the correlation analysis showed that: there were some correlations between soil microorganism quantity, soil enzyme activity and soil physical and chemical properties. The research provides a theoretical basis for soil improvement, afforestation and protecting the ecosystem of Daqing Mountain Nature Reserve in Inner Mongolia.

刘雷,姚庆智,铁英,李敏 and 魏杰. Rhizosphere Soil Microorganism Quantity and Enzyme Activity of 3 Tree Species in Daqing Mountain[J]. Chinese Agricultural Science Bulletin, 2018, 34(17): 89-94.

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