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    田松岩, 刘延坤, 沃晓棠, 李云红, 陈瑶. 小兴安岭3 种原始红松林的土壤有机碳研究[J]. 北京林业大学学报, 2014, 36(5): 33-38. DOI: 10.13332/j.cnki.jbfu.2014.05.015
    引用本文: 田松岩, 刘延坤, 沃晓棠, 李云红, 陈瑶. 小兴安岭3 种原始红松林的土壤有机碳研究[J]. 北京林业大学学报, 2014, 36(5): 33-38. DOI: 10.13332/j.cnki.jbfu.2014.05.015
    TIAN Song-yan, LIU Yan-kun, WO Xiao-tang, LI Yun-hong, CHEN Yao. Organic carbon of soil in three original Pinus koraiensis forests in XiaoXing' an Mountains of northeastern China[J]. Journal of Beijing Forestry University, 2014, 36(5): 33-38. DOI: 10.13332/j.cnki.jbfu.2014.05.015
    Citation: TIAN Song-yan, LIU Yan-kun, WO Xiao-tang, LI Yun-hong, CHEN Yao. Organic carbon of soil in three original Pinus koraiensis forests in XiaoXing' an Mountains of northeastern China[J]. Journal of Beijing Forestry University, 2014, 36(5): 33-38. DOI: 10.13332/j.cnki.jbfu.2014.05.015

    小兴安岭3 种原始红松林的土壤有机碳研究

    Organic carbon of soil in three original Pinus koraiensis forests in XiaoXing' an Mountains of northeastern China

    • 摘要: 为阐明小兴安岭3 种原始红松林土壤有机碳变化特征及其影响机制,以沿海拔梯度分布的云冷杉红松林、椴 树红松林和蒙古栎红松林为研究对象,采样分析了土壤总有机碳、易氧化碳、微生物生物量碳含量及土壤理化性 质。结果表明:3 种原始红松林土壤总有机碳、易氧化碳、微生物生物量碳含量均随土层加深而递减;蒙古栎红松林 土壤总有机碳与易氧化碳含量最高,椴树红松林次之(仅10 ~20 cm 土层土壤总有机碳低于云冷杉红松林,但差异 不显著),云冷杉红松林最低,这种趋势(蒙古栎红松林 椴树红松林 云冷杉红松林)同海拔梯度变化一致。不同 林型土壤微生物生物量碳含量的差异在不同土壤层次有所不同,但差异均不显著;2 种活性碳、总有机碳与土壤全 氮、C蛐N 之间为显著(P 0.05)或极显著(P 0.01)正相关,与土壤密度呈极显著负相关(P 0.01)。综上,3 种原 始红松林土壤有机碳含量的差异是森林类型、海拔、土壤环境等因素综合作用的结果。

       

      Abstract: To understand the characteristics of soil organic carbon and its correlations with soil properties in the three original Pinus koraiensis forest types in XiaoXing' an Mountains of northeastern China, Picea sp. - Abies sp. -Pinus koraiensis forests, Tilia sp. -Pinus koraiensis forests and Quercus mongolica-Pinus koraiensis forests along elevation gradient were selected for this study, and soil samples were analyzed for soil total organic carbon (TOC), easily-oxidized carbon (EOC), microbial biomass carbon (MBC) and basic properties. Results showed that the contents of soil TOC, EOC and MBC in the three forest types decreased with increase of soil depth. Exception of the depth of 10 - 20 cm, the soil TOC and EOC concentration ranged in order as follows: Quercus mongolica-Pinus koraiensis forests Tilia sp. -Pinus koraiensis forests Picea sp. -Abies sp. -Pinus koraiensis forests, it had the same trend as elevation gradient. Soil MBC varied in different soil depths for the three forest types. Soil EOC, MBC and TOC were all significantly related to total N and C/N, and were negatively significantly related to soil bulk density. We concluded that the combined effects of forest type, elevation, and soil environment contributed to the differences in the soil organic carbon found across the three original P. koraiensis forest types.

       

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