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细根异速分解的3个可能影响途径

王存国 陈正侠 马承恩 林贵刚 韩士杰

王存国, 陈正侠, 马承恩, 林贵刚, 韩士杰. 细根异速分解的3个可能影响途径[J]. 北京林业大学学报, 2016, 38(4): 123-128. doi: 10.13332/j.1000-1522.20150437
引用本文: 王存国, 陈正侠, 马承恩, 林贵刚, 韩士杰. 细根异速分解的3个可能影响途径[J]. 北京林业大学学报, 2016, 38(4): 123-128. doi: 10.13332/j.1000-1522.20150437
WANG Cun-guo, CHEN Zheng-xia, MA Cheng-en, LIN Gui-gang, HAN Shi-jie. Three potential pathways influencing contrasting decomposition rates of fine roots[J]. Journal of Beijing Forestry University, 2016, 38(4): 123-128. doi: 10.13332/j.1000-1522.20150437
Citation: WANG Cun-guo, CHEN Zheng-xia, MA Cheng-en, LIN Gui-gang, HAN Shi-jie. Three potential pathways influencing contrasting decomposition rates of fine roots[J]. Journal of Beijing Forestry University, 2016, 38(4): 123-128. doi: 10.13332/j.1000-1522.20150437

细根异速分解的3个可能影响途径

doi: 10.13332/j.1000-1522.20150437
基金项目: 

国家自然科学基金青年科学基金项目(31500354)、森林与土壤生态国家重点实验室开放基金课题(LFSE2015-12)、国家自然科学基金重点项目(41330530)

详细信息
    作者简介:

    王存国,博士。主要研究方向:全球变化生态学。Email: wangcunguo001@163.com 地址:110866辽宁省沈阳市沈河区东陵路120号沈阳农业大学农学院。
    责任作者: 韩士杰,博士,研究员,博士生导师。主要研究方向: 森林界面生态学。 Email : hansj@iae.ac.cn 地址:110016辽宁省 沈阳市沈河区文化路72号中国科学院沈阳应用生态研究所

    王存国,博士。主要研究方向:全球变化生态学。Email: wangcunguo001@163.com 地址:110866辽宁省沈阳市沈河区东陵路120号沈阳农业大学农学院。
    责任作者: 韩士杰,博士,研究员,博士生导师。主要研究方向: 森林界面生态学。 Email : hansj@iae.ac.cn 地址:110016辽宁省 沈阳市沈河区文化路72号中国科学院沈阳应用生态研究所

Three potential pathways influencing contrasting decomposition rates of fine roots

  • 摘要: 植物根系分解是驱动陆地生态系统碳和养分循环的关键过程之一。直径小于2 mm的根是一个复杂的异质性细根系统。位于细根系统末端的低级根(如1~3级根)或直径较小的细根(如直径小于0.5 mm的细根),执行水分和养分吸收功能,其周转迅速(0.5~2.5次/a),是植物根系向土壤输入碳和养分的主要途径。近年来对细根分解的研究表明,在细根系统中,低级根的分解速率显著慢于高级根(如3级以上的根)或直径较大的细根(如直径大于0.5 mm的细根),执行输导和储藏功能。本文综述了影响细根异速分解的3个可能途径:菌根、碳质量和氮含量,旨在增强研究者对全球变化下细根功能属性(如细根直径)如何影响生态系统碳和养分循环的理解。

     

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