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• 研究报告 • 上一篇    下一篇

不同类型毛竹林土壤活性有机碳

杜满义1,范少辉1**,漆良华1,刘广路1,唐晓鹿1,肖复明2   

  1. 1国际竹藤中心,国家林业局竹藤科学与技术重点实验室, 北京 100102; 2江西省林业科学院, 江西南昌 330032)
  • 出版日期:2013-03-10 发布日期:2013-03-10

Soil labile organic carbon in different types of moso bamboo (Phyllostachys edulis) stands.

DU Man-yi1, FAN Shao-hui1**, QI Liang-hua1, LIU Guang-lu1, TANG Xiao-lu1, XIAO Fu-ming2   

  1. (1 International Centre for Bamboo and Rattan, Key Laboratory of Science and Technology of Bamboo and Rattan, State Forestry Administration, Beijing 100102, China;  2Jiangxi Academy of Forestry, Nanchang 330032, China)
  • Online:2013-03-10 Published:2013-03-10

摘要:

以江西省安福县毛竹纯林、竹阔混交林、竹杉混交林为研究对象,探讨不同类型毛竹林的土壤活性有机碳的变化。结果表明:(1)土壤总有机碳和易氧化态碳含量以毛竹纯林最高,分别为13.1和2.15 g·kg-1;微生物生物量碳和热水浸提有机碳以竹杉混交林最高,分别为123.3和349.0 mg·kg-1。(2)3种类型毛竹林土壤活性有机碳的含量均随土层深度的增加而呈现出先快后慢的下降趋势。(3)土壤总有机碳、微生物生物量碳、热水浸提有机碳和易氧化态碳之间的相关性均达到极显著水平(P<0.01),后三者在一定程度上表征了土壤中活性较高部分的碳含量。
 

关键词: 北方, 农牧交错带, 生态经济, 生态学原则

Abstract: Taking the Phyllostachys edulis forest, P. edulis and broadleaved mixed forest, and P. edulis and Cunninghamia lanceolata mixed forest in Anfu County, Jiangxi Province of China as test objects, this paper studied the variations of soil labile organic carbon in different types of moso bamboo stands. The contents of soil total organic carbon (TOC) and readily oxidizable carbon (ROC) were the highest in P. edulis forest (13.1 and 2.15 g·kg-1, respectively), while the soil microbial biomass carbon (MBC) and hot waterextractable carbon (HWC) were the highest in P. edulis and C. lanceolata mixed forest (123.3 and 349.0 mg·kg-1, respectively). The soil labile organic carbon contents in the three types of moso bamboo stands all decreased with soil depth, indicating that surface soil layer could significantly enrich soil labile organic carbon. The soil TOC, MBC, HWC, and ROC contents were significantly correlated with each other (P<0.01), and the MBC, HWC, and ROC could be used to evaluate the contents of soil active labile organic carbon.