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花棒根际土壤微生物及土壤酶活性分析

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通过对花棒不同年龄根际土壤微生物和土壤酶活性研究结果表明,不同林龄和不同季节土壤微生物的种类组成有明显的差异,采用平板涂布法从花棒根际土壤分离并鉴定细菌44属,真菌24属,放线菌19属；细菌数量在花棒林内占绝对优势,放线菌次之,真菌的数量最少；土壤微生物有明显的季节分布规律；花棒人工林的土壤微生物总量的根际效应春、夏、秋分别为1.13、1.08、1.87.不同林龄的土壤微生物和土壤酶活性均存在差异,土壤微生物的数量和酶活性随着取样深度的增加均表现为逐渐降低.土壤细菌与脲酶和碱性磷酸酶活性呈显著或极显著正相关,3种土壤酶活性间的相关性均达显著水平.
ANALYSIS OF MICROBE POPULATION AND ENZYME ACTIVITY IN Hedysarum scoparium RHIZOSPI-IERIC SOIL
Rhizosphere microbes and soil enzyme activity of Hedysarum scoparium are analyzed. There is obvious difference about soil microbial population composition, which including 44 genera of bacteria, 24 genera of fungi and 19 genera of actinomyces. Bacterium is dominant and fungus is least in quantity. Soil microbes have significant seasonal distribution rule. The rhizosphere effect of soil microbes in Hedysarum scoparium artificial forest is 1.13 in spring, 1.08 in summer and 1.87 in autumn. The population of soil microbes and the activity of soil enzymes are different with various stand ages, and they both decrease gradually with increase of the soil depth. The positive orrclation between soil bacteria quantity and urcase & alkaline phosphatase activity are significant. The correlations between each other with 3 soil enzymes all reach a significant level.

Hedysarum scopariumsoil microorganismssoil enzyme activity

韩艳洁、张秋良、袁秀英

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内蒙古农业大学林学院,呼和浩特010019

花棒 土壤微生物 土壤酶活性

国家自然科学基金林业公益性行业科研专项项目

30660149200804027-03

2012

内蒙古农业大学学报(自然科学版)
内蒙古农业大学

内蒙古农业大学学报(自然科学版)

北大核心
影响因子：0.384
ISSN：1009-3575
年,卷(期)：2012.33(2)
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