Research on Characteristics of Soil Organic Carbon in Different Forest Types in Changbai Mountain

CONG Gao; ZHANG Zhidan; ZHANG Jinjing; XU Li; HE Nianpeng

doi:10.13870/j.cnki.stbcxb.2019.03.027

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Research on Characteristics of Soil Organic Carbon in Different Forest Types in Changbai Mountain

更新时间：2025-03-12

- Research on Characteristics of Soil Organic Carbon in Different Forest Types in Changbai Mountain
- Vol. 33, Issue 3, Pages: 179-184(2019)
- 作者机构：
  
  1. 吉林农业大学资源与环境学院,长春,130118
  2. 中国科学院地理科学与资源研究所生态系统网络观测与模拟重点实验室,北京,100101
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2019.03.027
  CLC：
- Published：2019
- 稿件说明：
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CONG Gao, ZHANG Zhidan, ZHANG Jinjing, et al. Research on Characteristics of Soil Organic Carbon in Different Forest Types in Changbai Mountain[J]. 2019, 33(3): 179-184.
DOI：

CONG Gao, ZHANG Zhidan, ZHANG Jinjing, et al. Research on Characteristics of Soil Organic Carbon in Different Forest Types in Changbai Mountain[J]. 2019, 33(3): 179-184. DOI： 10.13870/j.cnki.stbcxb.2019.03.027.

摘要

采用野外采样与室内分析相结合的方法，研究了长白山北坡6种不同林型（阔叶林、针叶林、云冷杉、岳桦林、岳桦-苔原、高山苔原）土壤有机碳及其组分的含量，分析了土壤有机碳分布与铁铝氧化物和黏粒矿物组成之间的关系。结果表明：不同林型之间，阔叶林土壤的有机碳、胡敏素碳、颗粒有机碳、2~0.25 mm大团聚体碳和0.25~0.053 mm微团聚体碳含量最高，云冷杉土壤的易氧化碳含量最高而水溶性有机碳、胡敏酸碳、富里酸碳和颗粒有机碳含量最低）此外，岳桦林土壤的胡敏酸碳和富里酸碳含量显著高于其他林型土壤，岳桦-苔原土壤的水溶性有机碳含量显著高于其他林型土壤，而高山苔原土壤的有机碳和易氧化碳含量显著低于其他林型土壤。相关性分析表明，土壤有机碳含量与非晶质氧化铝含量呈显著的正相关关系（P<0.05），富里酸碳含量与游离氧化铝含量呈显著的正相关关系（P<0.05），而0.25~0.053 mm微团聚体有机碳含量与2种形态氧化铝含量都呈显著的正相关关系（P<0.05）。上述结果指出，不同林型条件下各有机碳及其组分差异显著。

Abstract

The contents of soil organic carbon and its components in six different forest types (including broad-leaved forest

coniferous forest

spruce-fir forest

betula ermanii forest

betula ermanii-tundra transition and tundra) on the northern slope of Changbai Mountain were studied by means of field sampling and laboratory analysis. The distribution of soil organic carbon

iron-aluminum oxides and clay mineral groups were analyzed. The results showed that in different forest types

the contents of organic carbon

humin carbon

particulate organic carbon

2~0.25 mm macroaggregate carbon and 0.25~0.053 mm microaggregate carbon in broadleaf forest soils were the highest. The content of easily oxidized carbon in soil of spruce-fir forest was the highest while that of water-soluble organic carbon

humic acid carbon

fulvic acid carbon and particulate organic carbon were the lowest. In addition

the contents of humic acid carbon and fulvic acid carbon in the soil of betula ermanii forest were significantly higher than those of other forest types. The content of water-soluble organic carbon in the soil of betula ermanii-tundra transition were significantly higher than those of other forest types

while the contents of organic carbon and easily oxidized carbon in the soil of tundra were significantly lower than those of other forest types. Correlation analysis showed that soil organic carbon contents were positively correlated with amorphous alumina contents (P<0.05)

fulvic acid carbon contents were positively correlated with free alumina contents (P<0.05)

and organic carbon contents of 0.25~0.053 mm microaggregate were positively correlated with the contents of two kinds of alumina (P<0.05). These results indicated that the significant differences in organic carbon and its components were observed under different forest types.

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