globalchange  > 气候变化事实与影响
Scopus记录号: 2-s2.0-85057894544
论文题名:
Allometry of fine roots in forest ecosystems
作者: Chen G.; Hobbie S.E.; Reich P.B.; Yang Y.; Robinson D.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2019
卷: 22, 期:2
起始页码: 322
结束页码: 331
语种: 英语
英文关键词: Allometric scaling ; carbon allocation ; carbon cycle ; fine roots ; forest ecosystems ; net primary production ; pipe model
英文摘要: Theoretical predictions regarding fine root production are needed in many ecosystem models but are lacking. Here, we expand the classic pipe model to fine roots and predict isometric scaling relationships between leaf and fine root biomass and among all major biomass production components of individual trees. We also predict that fine root production scales more slowly against increases in leaf production across global forest ecosystems at the stand level. Using meta-analysis, we show fine root biomass scales isometrically against leaf biomass both at the individual tree and stand level. However, despite isometric scaling between stem and coarse root production, fine root production scales against leaf production with a slope of about 0.8 at the stand level, which probably results from more rapid increase of turnover rate in leaves than in fine roots. These analyses help to improve our understandings of allometric theory and controls of belowground C processes. © 2018 John Wiley & Sons Ltd/CNRS
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122746
Appears in Collections:气候变化事实与影响

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作者单位: Key Laboratory for Subtropical Mountain Ecology, Ministry of Science and Technology and Fujian Province Funded, School of Geographical Sciences, Fujian Normal University, Fuzhou, 350007, China; Department of Ecology, Evolution & Behavior, University of Minnesota, St. Paul, MN 55108, United States; Department of Forest Resources, University of Minnesota, St. Paul, MN 55108, United States; Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW 2753, Australia; Institute of Biological & Environmental Sciences, School of Biological Sciences, University of Aberdeen, Aberdeen, AB24 3UU, United Kingdom

Recommended Citation:
Chen G.,Hobbie S.E.,Reich P.B.,et al. Allometry of fine roots in forest ecosystems[J]. Ecology Letters,2019-01-01,22(2)
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