朱柳霏, 戴艳花, 黎立港, 吴 滢, 宋贤冲, 王会利, 覃祚玉, 谭一波, 邓小军. 猫儿山自然保护区不同林分类型土壤有机碳储量及其剖面分配特征[J]. 土壤通报, 2024, 55(4): 968 − 973. DOI: 10.19336/j.cnki.trtb.2022092302
引用本文: 朱柳霏, 戴艳花, 黎立港, 吴 滢, 宋贤冲, 王会利, 覃祚玉, 谭一波, 邓小军. 猫儿山自然保护区不同林分类型土壤有机碳储量及其剖面分配特征[J]. 土壤通报, 2024, 55(4): 968 − 973. DOI: 10.19336/j.cnki.trtb.2022092302
ZHU Liu-fei, DAI Yan-hua, LI Li-gang, WU Ying, SONG Xian-chong, WANG Hui-li, QIN Zuo-yu, TAN Yi-bo, DENG Xiao-jun. Soil Carbon Storage and Vertical Distribution Characteristics of Different Stand Types in Maoershan Nature Reserve[J]. Chinese Journal of Soil Science, 2024, 55(4): 968 − 973. DOI: 10.19336/j.cnki.trtb.2022092302
Citation: ZHU Liu-fei, DAI Yan-hua, LI Li-gang, WU Ying, SONG Xian-chong, WANG Hui-li, QIN Zuo-yu, TAN Yi-bo, DENG Xiao-jun. Soil Carbon Storage and Vertical Distribution Characteristics of Different Stand Types in Maoershan Nature Reserve[J]. Chinese Journal of Soil Science, 2024, 55(4): 968 − 973. DOI: 10.19336/j.cnki.trtb.2022092302

猫儿山自然保护区不同林分类型土壤有机碳储量及其剖面分配特征

Soil Carbon Storage and Vertical Distribution Characteristics of Different Stand Types in Maoershan Nature Reserve

  • 摘要:
    目的  揭示猫儿山自然保护区3种不同林分类型土壤有机碳储量差异及其剖面垂直分布特征,为该区域林业碳汇发展提供科学理论依据。
    方法  以猫儿山水青冈天然次生林、毛竹人工林、杉木人工林3种典型林分作为研究对象,采用野外调查结合室内分析的方法,测定并计算各林分土壤容重、有机碳含量、有机碳密度和有机碳储量,并根据各林分结果数据来分析不同林分土壤有机碳储量差异及其剖面垂直分布特征和占比规律。
    结果  不同林分类型土壤有机碳含量、有机碳密度及有机碳储量均表现为:水青冈天然次生林 > 毛竹人工林 > 杉木人工林。不同土层土壤有机碳含量、有机碳密度及有机碳储量存在显著差异,且均随土层加深有机碳含量等指标降低。水青冈林分土壤总有机碳储量最高,为332.99 t hm −2;杉木林分土壤总有机碳储量最低,为225.27 t hm −2。有机碳储量占比也是随土层加深而逐渐变小,土层越深,占比越小。
    结论  水青冈天然次生林土壤有机碳储量高于毛竹人工林、杉木人工林,有较好的碳储量积累与固定效应。

     

    Abstract: :
    Objective  The aim was to reveal the difference of soil organic carbon (SOC) storage, its vertical distribution characteristics and proportion rule of three different stand types in Maoershan Nature Reserve, in order to provide scientific theoretical basis for the development of forest carbon (C) sink in this area.
    Methods  Soil bulk density, SOC content, organic C density and organic C storage were measured and calculated by field investigation combined with laboratory analysis in three typical stands of natural secondary forest, bamboo plantation and Chinese fir plantation in Maoershan. The difference of SOC storage in different stands and its vertical distribution and proportion were analyzed according to the result data of each stand.
    Results  The SOC content, organic C density and organic C storage of different stand types were as follows: natural secondary forest > bamboo plantation > Chinese fir plantation. There were significant differences in SOC content, organic C density and storage in different soil layers, and the organic C content decreased with the deepening of soil layers. The soil total organic carbon (TOC) storage was the highest (332.99 t hm −2) in Prunus sylvata stand, and the lowest (225.27 t hm −2) in Chinese fir stand. The proportion of organic C storage gradually decreases with the deepening of the soil layer, and the deeper the soil layer, the smaller the proportion.
    Conclusion  The SOC and C storage of natural secondary forest of Cyclobalsam sylvatica were higher than that of bamboo plantation and Chinese fir plantation, and had better C storage accumulation and fixation effect.

     

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