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水杉人工林细根形态及生物量分布规律

曹国华 姚继周 杨鑫 方月丰 张高洁 于水强

安徽农业科学Issue(2):9-11,3.
安徽农业科学Issue(2):9-11,3.

水杉人工林细根形态及生物量分布规律

Morphology of Fine Roots of Metasequoia glyptostroboides Plantation and Its Biomass Distribution Laws

曹国华 1姚继周 2杨鑫 2方月丰 2张高洁 2于水强2

作者信息

  • 1. 江苏省东台市林场,江苏东台224242
  • 2. 南京林业大学林业生态工程重点实验室,江苏南京210037
  • 折叠

摘要

Abstract

[Objective] To research the morphology of fine roots of Metasequoia glyptostroboides plantation and its biomass distribution laws.[Method] morphological parameters of fine roots (diameter,length,specific root length,and specific surface area) and root biomass were detected by root drill method and WinRHIZO roots analyzer.[Result] With the enhancement of fine root order,the diameter and average length of fine roots of M.glyptostroboides showed a trend of increase.The specific root length and the specific root surface area in the first order roots were far larger than those of higher order roots.Fine roots of M.glyptostroboides were mainly concentrated within 1.5 m from tree trunk.Most of the fine root biomass was distributed in 0-20 cm soil layer.The fine roots of small diameter were in surface soil and the roots of large diameter were in deeper soil.[Conclusion] This research provides data support for the the management of plantation and the research on fine root ecological processes.

关键词

水杉/根序/细根形态/生物量/空间分布

Key words

Metasequoia glyptostroboides/Root order/Fine root morphology/Biomass/Distribution

分类

农业科技

引用本文复制引用

曹国华,姚继周,杨鑫,方月丰,张高洁,于水强..水杉人工林细根形态及生物量分布规律[J].安徽农业科学,2016,(2):9-11,3.

基金项目

国家自然科学基金项目(31270489). (31270489)

安徽农业科学

0517-6611

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