Vertical stratification of °13C values in closed natural and plantation forests in the Luquillo mountains, Puerto Rico

Ernesto Medina, Leonel Sternberg, Elvira Cuevas

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

The variability of δ13C values was measured in leaf, stem and root tissues of several tree species growing in closed natural and plantation forests in the Luquillo mountains of Puerto Rico. Results confirm a significant decrease of δ13C values from the tree canopy to the forest floor. The values measured in understory plants growing in gaps were not significantly different from the average for plants growing under the forest shade. Seedling leaf values tended to be more positive than those of saplings, probably reflecting the contribution of organic matter from the mother tree. Photosynthetic independence on the forest floor results in a reduction in °13C value. Stem and root tissue values of seedlings and saplings were less negative than those of the leaves of the same plants. It is suggested that this difference results from the slower change in isotopic composition experienced by the woody tissue, as the seedlings become photosynthetically independent in the forest floor.

Original languageEnglish
Pages (from-to)369-372
Number of pages4
JournalOecologia
Volume87
Issue number3
DOIs
StatePublished - Sep 1 1991

Fingerprint

seed stratification
forest plantations
Puerto Rico
forest floor
montane forests
forest litter
stratification
plantation
seedling
sapling
saplings
mountain
seedlings
stem
leaves
stems
seed trees
understory
shade
isotopic composition

Keywords

  • °C value
  • CO recycling
  • Tropical forests

ASJC Scopus subject areas

  • Ecology

Cite this

Vertical stratification of °13C values in closed natural and plantation forests in the Luquillo mountains, Puerto Rico. / Medina, Ernesto; Sternberg, Leonel; Cuevas, Elvira.

In: Oecologia, Vol. 87, No. 3, 01.09.1991, p. 369-372.

Research output: Contribution to journalArticle

Medina, Ernesto ; Sternberg, Leonel ; Cuevas, Elvira. / Vertical stratification of °13C values in closed natural and plantation forests in the Luquillo mountains, Puerto Rico. In: Oecologia. 1991 ; Vol. 87, No. 3. pp. 369-372.
@article{55fcdcdf75a046168a0e3db1420109d6,
title = "Vertical stratification of °13C values in closed natural and plantation forests in the Luquillo mountains, Puerto Rico",
abstract = "The variability of δ13C values was measured in leaf, stem and root tissues of several tree species growing in closed natural and plantation forests in the Luquillo mountains of Puerto Rico. Results confirm a significant decrease of δ13C values from the tree canopy to the forest floor. The values measured in understory plants growing in gaps were not significantly different from the average for plants growing under the forest shade. Seedling leaf values tended to be more positive than those of saplings, probably reflecting the contribution of organic matter from the mother tree. Photosynthetic independence on the forest floor results in a reduction in °13C value. Stem and root tissue values of seedlings and saplings were less negative than those of the leaves of the same plants. It is suggested that this difference results from the slower change in isotopic composition experienced by the woody tissue, as the seedlings become photosynthetically independent in the forest floor.",
keywords = "°C value, CO recycling, Tropical forests",
author = "Ernesto Medina and Leonel Sternberg and Elvira Cuevas",
year = "1991",
month = "9",
day = "1",
doi = "10.1007/BF00634593",
language = "English",
volume = "87",
pages = "369--372",
journal = "Oecologia",
issn = "0029-8519",
publisher = "Springer Verlag",
number = "3",

}

TY - JOUR

T1 - Vertical stratification of °13C values in closed natural and plantation forests in the Luquillo mountains, Puerto Rico

AU - Medina, Ernesto

AU - Sternberg, Leonel

AU - Cuevas, Elvira

PY - 1991/9/1

Y1 - 1991/9/1

N2 - The variability of δ13C values was measured in leaf, stem and root tissues of several tree species growing in closed natural and plantation forests in the Luquillo mountains of Puerto Rico. Results confirm a significant decrease of δ13C values from the tree canopy to the forest floor. The values measured in understory plants growing in gaps were not significantly different from the average for plants growing under the forest shade. Seedling leaf values tended to be more positive than those of saplings, probably reflecting the contribution of organic matter from the mother tree. Photosynthetic independence on the forest floor results in a reduction in °13C value. Stem and root tissue values of seedlings and saplings were less negative than those of the leaves of the same plants. It is suggested that this difference results from the slower change in isotopic composition experienced by the woody tissue, as the seedlings become photosynthetically independent in the forest floor.

AB - The variability of δ13C values was measured in leaf, stem and root tissues of several tree species growing in closed natural and plantation forests in the Luquillo mountains of Puerto Rico. Results confirm a significant decrease of δ13C values from the tree canopy to the forest floor. The values measured in understory plants growing in gaps were not significantly different from the average for plants growing under the forest shade. Seedling leaf values tended to be more positive than those of saplings, probably reflecting the contribution of organic matter from the mother tree. Photosynthetic independence on the forest floor results in a reduction in °13C value. Stem and root tissue values of seedlings and saplings were less negative than those of the leaves of the same plants. It is suggested that this difference results from the slower change in isotopic composition experienced by the woody tissue, as the seedlings become photosynthetically independent in the forest floor.

KW - °C value

KW - CO recycling

KW - Tropical forests

UR - http://www.scopus.com/inward/record.url?scp=0026342329&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026342329&partnerID=8YFLogxK

U2 - 10.1007/BF00634593

DO - 10.1007/BF00634593

M3 - Article

AN - SCOPUS:0026342329

VL - 87

SP - 369

EP - 372

JO - Oecologia

JF - Oecologia

SN - 0029-8519

IS - 3

ER -