Leaf and fine root carbon stocks and turnover are coupled across Arctic ecosystems

Victoria L. Sloan*, Benjamin J. Fletcher, Malcolm C. Press, Mathew Williams, Gareth K. Phoenix

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Estimates of vegetation carbon pools and their turnover rates are central to understanding and modelling ecosystem responses to climate change and their feedbacks to climate. In the Arctic, a region containing globally important stores of soil carbon, and where the most rapid climate change is expected over the coming century, plant communities have on average sixfold more biomass below ground than above ground, but knowledge of the root carbon pool sizes and turnover rates is limited. Here, we show that across eight plant communities, there is a significant positive relationship between leaf and fine root turnover rates (r(2)=0.68, P

Original languageEnglish
Pages (from-to)3668-3676
Number of pages9
JournalGlobal Change Biology
Volume19
Issue number12
DOIs
Publication statusPublished - Dec 2013

Keywords

  • Arctic
  • biomass
  • carbon stocks
  • fine root
  • leaf area index
  • root:leaf ratio
  • turnover
  • LONG-TERM FERTILIZATION
  • AREA INDEX
  • ECONOMICS SPECTRUM
  • CLIMATE-CHANGE
  • PRIMARY PRODUCTIVITY
  • VEGETATION TYPES
  • NORTHERN ALASKA
  • GLOBAL CHANGE
  • PLANT-GROWTH
  • TOOLIK LAKE

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