黄土丘陵区油松和刺槐人工林不同恢复阶段细根生物量的变化

来源 :第十四届中国生态学大会 | 被引量 : 0次 | 上传用户：jojo0911216779

【摘要】

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【作者】

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陈莉莉穆兴民袁志友焦峰邓强

【机构】

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中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室;中国科学院大学中国科学院

【出处】

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第十四届中国生态学大会

【发表日期】

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2015年9期

【关键词】

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黄土高原细根生物量油松刺槐人工林

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论文部分内容阅读

细根,一般指直径≤2mm的根,是根系最重要的部分.细根在森林生态系统中的碳分配、养分循环及土壤结构改善等方面起着重要作用.目前有关北方森林、寒温带森林和热带森林生态系统细根的研究较多,有关温带森林生态系统细根的研究还相对较少.在同一气候带下,不同植被类型和不同演替阶段群落的细根生物量差异较大.对同一地区不同植被恢复过程中的细根生物量与环境因子的关系进行研究,有助于更全面地了解同一气候带不同植被类型细根生长的差异及其与环境因子的作用机制.由于相关研究趋向于单一的植被类型,未对其它典型植被同时进行调查研究,得到的结果难免具有片面性,有必要对同一地区不同植被类型的细根进行研究.

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黄土丘陵区油松和刺槐人工林不同恢复阶段细根生物量的变化

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