林火干扰对森林土壤活性有机碳影响的研究  

Effects of Forest Fire Disturbance on Soil Labile Organic Carbon in Forest Ecosystem

作　　者：胡海清[1] 罗斯生 罗碧珍[1] 魏书精[2] 刘菲[1] Hu Haiqing;Luo Sisheng;Luo Bizhen;Wei Shujing;Liu Fei(College of Forestry,Northeast Forestry University,Harbin 150040,China;Guangdong Provincial Key Laboratory of Silviculture,Protection and Utilization,Guangdong Academy of Forestry,Guangzhou 510520,China)

机构地区：[1]东北林业大学林学院,哈尔滨150040 [2]广东省森林培育与保护利用重点实验室,广东省林业科学研究院,广州510520

出　　处：《世界林业研究》2020年第5期13-18,共6页World Forestry Research

基　　金：国家自然科学基金面上项目“广东沿海不同空间尺度红树林生态系统的碳贮量及碳汇潜力研究”(41371109);国家林业公益性行业科研专项“基于定位观测的森林火险预报关键技术研究”(201404402);广西自然科学基金“广西森林火灾污染物排放模型及其对大气环境的影响机理研究”(2014GXNSFBA118108)。

摘　　要：土壤活性有机碳作为森林土壤有机碳的活跃成分,在凋落物分解和土壤碳循环中发挥着重要作用。林火干扰通过改变土壤底物的数量和理化性质进而影响土壤活性有机碳,因而阐明林火干扰对土壤活性有机碳的影响是开展森林碳循环研究的基础。文中以6种土壤活性有机碳为研究对象,分别阐述林火干扰对土壤活性有机碳影响的研究进展。针对目前研究现状及存在问题,认为应进一步深化探究林火干扰后土壤微生物活性变化机制对土壤活性有机碳的影响,揭示土壤碳库平衡的影响机理;加强林火干扰后C-N耦合循环特征的研究;深入研究林火干扰后影响土壤活性有机碳的内在因素和外在因素的相互作用,综合评价林火干扰对土壤活性有机碳的短期与长期影响;加强林火干扰—土壤碳库—全球气候变化的交互关系研究,深入探讨林火干扰与土壤活性有机碳的相互作用关系及影响机理。As an active component of soil organic carbon,soil labile organic carbon plays an important role in litter decomposition and soil carbon cycle.Forest fire disturbance affects soil labile organic carbon by changing the quantity and physicochemical properties of soil substrates.Thus clarifying the impact of forest fire disturbance on soil labile organic carbon is the basis for carrying out the carbon cycle of forest ecosystems.With an eye on 6 components of soil labile organic carbon,this paper elaborates the research progress in the effect of forest fire disturbance on soil labile organic carbon.Based on the current research and existing problems,it is argued that further research should be made to explore the effects of forest fire disturbance on soil microbial activity change regime to reveal the influence mechanism of soil carbon pool balance,enhance the characteristics of C-N coupling cycle after fire interference,understand the interaction between the internal and external factors affecting soil labile organic carbon after forest fire disturbance to comprehensively evaluate the short-term and long-term effects of forest fire disturbance on soil labile organic carbon,and strengthen the study of interaction between forest fire disturbance,soil carbon pool and global climate change to have in-depth discussion on the interaction between forest fire disturbance and soil labile organic carbon and its influence mechanism.

关 键 词：林火干扰 土壤有机碳 有机碳组分 活性有机碳 影响机理 

分 类 号：S714[农业科学—林学] S762.2