| 摘要: |
| 以广东省国有银盏林场9 种不同植被类型下0~60 cm 土层土壤为研究对象，通过野外调查与
室内分析相结合的方法，对土壤碳含量、碳密度以及分布特征进行比较研究，结果表明，（1）各土层土壤
有机碳含量分别为：2.93~20.90, 1.18~12.11, 1.04~7.92 g · kg-1，土壤有机碳主要集中在0~20 cm 土层，其
所占比例在50％以上，均随着土层的加深而降低；（2）土壤碳密度的平均值为59.77 kg · m-2，不同林分
类型下土壤总碳密度的大小顺序为：果树林＞阔叶混交林＞杉木林＞桉树林＞针阔混交林＞马尾松林＞
黎蒴林Castanopsis fissa ＞采伐迹地＞宜林地；（3）同一土层不同土壤有机碳含量、碳密度没有一致的变
化规律，不同植被类型下土壤碳含量及碳密度差异显著，银盏林场在今后的森林经营活动中应该注重宜
林地造林和桉树林改造等土壤生态恢复工作。 |
| 关键词: 银盏林场 土壤碳密度 分布特征 |
| DOI： |
| 分类号: |
| 基金项目: |
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| Distribution Characteristics of Soil Carbon Density in Yin Zhan National Forest Farm of Guangdong Province |
|
huangshaohui and zhangbei
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Guangdong Forestry Survey and Planning Institute,Guangdong Forestry Survey and Planning Institute
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| Abstract: |
| This paper analyzed soil carbon density and distribution of 0-60 cm soil layer under nine different
forest types in Yin Zhan national forest farm to procide theoretical basis for regional ecosystem carbon sink
management and cultural practices of plantation forest. The results showed that (1) The organic carbon contents of
each soil layer were 2.93-20.90, 1.18-12.11 and 1.04-7.92 g · kg-1. The 0-20 cm soil layer contributed to more than
50％ and they decreased with soil depth. (2) The mean of soil carbon density was 59.77 kg · m-2. The sequence
was in the order of fruit forest ＞ broad-leaved mixed forest ＞ Chinese fir forest ＞ Eucalyptus forest ＞
mixed conifer ＞ Pinus forest ＞ Castanopsis fissa ＞ cutover land ＞ suitable forestland. (3) There was no
consistent change in soil organic carbon content and carbon density in the same soil layer. Different forest types
had significant difference. Yin Zhan national forest farm should pay more attention to the afforestation in cutover
land and transformation of Eucalyptus forest. |
| Key words: Yin Zhan national forest farm soil carbon density distribution characteristics |
