| 油松与锐齿栎林地土壤微生物生物量初步研究 |
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| 引用本文： | 刘建军,余仲东,李华.油松与锐齿栎林地土壤微生物生物量初步研究[J].陕西林业科技,2001,1(2):7-10. |
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| 作者姓名： | 刘建军 余仲东 李华 |
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| 作者单位： | 1. 西北农林科技大学,
2. 海南省林业局, |
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| 基金项目： | 国家林业局"九五"重点课题"秦岭森林生态系统结构、功能及稳定性机理研究"的部分内容。 |
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| 摘 要： | 本文分析秦岭火地塘林区油松,锐齿栎林和草丛壤微生物Cmic,Nmic量及其分布特点,结果表明：（1）油松,锐齿栎林土壤微生物生物量在土壤剖面中从上到下明显的下降趋势,0－20cm土层是土壤微生物生物量集中分布区;（2）土壤微生物生物量与土壤有机质含量,孔隙度,细根（死,活）生的量呈正相关,与土壤容呈负相关;（3）0－30cm土层土壤微生物生物量锐齿栎林,油松林和草丛的Cmic分别为565.87,87,502.64,292.25mg/kg,Nmic分别为89.48,79.34,46.38mg/kg,不同植被土壤微生物生物量排序为：锐齿 栎林＞油松林＞草丛。
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| 关 键 词： | 秦岭 油松 锐齿栎 土壤微生物生物量 |
| 文章编号： | 1001-2117(2001)02-0007-04 |
A Primary Study on Biomass of Soil Microbes in Pinus
tabulaeformis and Quercus aliena var. acuteserata Stands |
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| LIU Jian-jun,YU Zhong-dong,LI Hua.A Primary Study on Biomass of Soil Microbes in Pinus
tabulaeformis and Quercus aliena var. acuteserata Stands[J].Shaanxi Forest Science and Technology,2001,1(2):7-10. |
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| Authors: | LIU Jian-jun YU Zhong-dong LI Hua |
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| Institution: | LIU Jian-jun1,YU Zhong-dong1,LI Hua2 |
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| Abstract: | On the analysis of soil microbe biomass and its' distribution in the Pinus tabulaeformis and Quercus aliena var. acuteserata stands, the results show that soil microbe biomass in the Pinus tabulaeformis and Quercus aliena var. acuteserata stands does obvious decrease from the above layer to the below layer in the profile and concentrates on the layers 0 ~ 20 cm. And the relationships between the soil microbe biomass and organic matter contents, porosity, tiny root (living and death) biomass are positive, but soil unit weight is negative. Lastly the soil microbe biomass among the layers 0 ~ 30 cm in the Quercus aliena var. acuteserata, Pinus tabulaeformis stands and grassland, i.e.C mic are 565.87,502.64 and 292.25 mg/kg respectively, and N mic are 89.48, 79.34 and 46.38 mg/kg respectively, and puts in order: Quercus aliena var. acuteserata stand> Pinus tabulaeformis stand>grassland among the different plantations. |
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| Keywords: | Qinling Mountain Pinus tabulaeformis Quercus aliena var acuteserata Soil microbe biomass |
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