Root distribution in an Amazonian seasonal forest as derived from δ13C profiles

Leonel Da S.L. Sternberg, La Victoria Green, Marcelo Z. Moreira, Daniel Nepstad, Luiz A. Martinelli, Reynaldo Victória

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

Carbon isotope ratios of the main stem in trees, saplings, and seedlings were correlated with their main stem diameter in an Amazonian seasonal forest. This correlation became the basis of using carbon isotope ratios of roots from various levels of the soil profile in order to determine root distribution from emergent, canopy and subcanopy trees, saplings and herbaceous understorey plants. It was observed that the distribution of roots in the soil profile is horizontally and vertically heterogeneous. Pockets of roots from saplings or herbaceous understorey plants were found as deep as 4 m and pockets of roots from emergent trees were found as shallow as 1 m depth.

Original languageEnglish (US)
Pages (from-to)45-50
Number of pages6
JournalPlant and Soil
Volume205
Issue number1
DOIs
StatePublished - Dec 1 1998

Keywords

  • δC
  • Canopy
  • Forest stratification
  • Root distribution
  • Tropical forest

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Plant Science
  • Soil Science

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    Sternberg, L. D. S. L., Green, L. V., Moreira, M. Z., Nepstad, D., Martinelli, L. A., & Victória, R. (1998). Root distribution in an Amazonian seasonal forest as derived from δ13C profiles. Plant and Soil, 205(1), 45-50. https://doi.org/10.1023/A:1004361029428