| 李英升.江西省典型森林类型土壤碳贮量
及碳汇能力研究[J].广东农业科学,2014,41(14):154-158 |
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江西省典型森林类型土壤碳贮量
及碳汇能力研究 |
| Study on soil organic carbon storage and carbon sequestration of main forest type in Jiangxi province |
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| DOI： |
| 中文关键词: 森林类型 土壤有机碳 土壤碳贮量 森林碳贮量 |
| 英文关键词: forest types soil organic carbon soil organic carbon storage forest carbon deposits |
| 基金项目:全国林业碳汇计量监测体系建设（造气函[2013]35 号） |
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| 摘要点击次数: 1515 |
| 全文下载次数: 529 |
| 中文摘要: |
| 基于全国林业碳汇监测与计量体系的建立袁采用野外调查尧取样和室内实验分析相结合的方法袁研究了江西省4 种森林类型土壤碳贮量及碳汇能力分布特征袁结果表明院4种森林类型土壤有机碳含量与有机碳密度表现出
相似的规律袁从大到小依次为阔叶林跃杉木林跃针阔混交林跃松木林袁森林土壤平均有机碳密度15.69渊依10.28冤kg/m2袁低于我国森林土壤有机碳密度19.36 kg/m2的平均水平袁其中阔叶林的土壤有机碳密度最大袁其平均碳密度分别是另外3
种森林类型的1.2耀1.8 倍曰4 种森林类型土壤有机碳密度尧土壤有机碳含量及其差异程度均随土壤深度的增加而减少袁0耀30 cm 土层土壤有机碳密度分别占整个剖面的50%左右袁0耀10 cm 土层土壤有机碳含量为10耀30 cm 土层的
1.7~2.3 倍袁为30耀100 cm 土层的3~4 倍曰森林土壤碳贮量占整个森林生态系统总碳贮量的73.72%~79.08%袁在森林生态系统碳循环中具有重要的地位和作用遥 |
| 英文摘要: |
| Based on the establishment of a national forest carbon monitoring and measuring system, the combined methods of field investigation, sampling and laboratory analysis were used to analyze the soil organic carbon storage and carbon sequestration of 4 main forest types in Jiangxi province. The results showed that, soil organic carbon contents and densities of 4 main forest types showed a similar pattern, and the order was broad-leaved forest> fir forest> mixed forest> pine forest. The average forest soil organic carbon density, 15.69 (依10.28) kg/m2, was lower than that of our country爷s average level which was 19.36 kg/m2. And the broad-leaved forest had the biggest soil organic carbon density, being 1.2~ 1.8 times of the other 3 forest types. The soil organic carbon densities, contents and the variations f 4 main forest types decreased with the soil depth, showing soil organic carbon density in 0~30 cm accounting for about 50% of the whole section, 0~10 cm soil layer depth of soil organic carbon content being 1.7~2.3 times of 10~30 cm soil layer and 3~4 timesof 30~100 cm soil layer. Forest soil carbon storage accounted 73.72%~79.08% of the forest ecological system, and had an important status and role. |
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