Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Spectral irradiance and stomatal conductance of enriched fallows with fast-growing trees in eastern Amazonia, Brazil

Spectral irradiance and stomatal conductance of enriched fallows with fast-growing trees in... The biomass production of both indigenous and introduced plant species in tropical fallow systems depends on the degree to which these species can acclimate to the light and water environments. Results for light spectral composition monitoring within the canopy of enriched fallows and for the leaf stomatal conductance of fast-growing leguminous trees and indigenous fallow species are presented. All measurements were made in a smallholder farm in Igarapé-Açu, northeastern Pará State, Brazil. Light spectral composition (330 to 1100 nm) was monitored at two heights (ground level and 1 m) in a six-year-old natural fallow, 1.5-year-old natural fallow, and 1.5-year-old fallows enriched with Acacia angustissima, Acacia mangium, Clitoria racemosa, Inga edulis, Sclerolobium paniculatum , and a mixture of these trees. Light-quality parameters including photosynthetically active radiation, phytochrome active radiation, and blue active radiation changed most drastically in the stands enriched with A. mangium . Stomatal conductance was higher for A. mangium than the other trees and four common indigenous fallow vegetation species ( Phenakospermum guyannense, Davilla rugosa, Lacistema pubescens , and Myrcia bracteata ). Results suggest that the enrichment of fallows with A. mangium may promote changes in light and water vapor exchange regimes, with potential effects on species diversity in fallows. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Agroforestry Systems Springer Journals

Spectral irradiance and stomatal conductance of enriched fallows with fast-growing trees in eastern Amazonia, Brazil

Download PDF
15 pages

Loading next page...
 
/lp/springer-journals/spectral-irradiance-and-stomatal-conductance-of-enriched-fallows-with-EruZCKxQQd

References (51)

Publisher
Springer Journals
Copyright
Copyright © 1999 by Kluwer Academic Publishers
Subject
Life Sciences; Agriculture; Forestry
ISSN
0167-4366
eISSN
1572-9680
DOI
10.1023/A:1006240102207
Publisher site
See Article on Publisher Site

Abstract

The biomass production of both indigenous and introduced plant species in tropical fallow systems depends on the degree to which these species can acclimate to the light and water environments. Results for light spectral composition monitoring within the canopy of enriched fallows and for the leaf stomatal conductance of fast-growing leguminous trees and indigenous fallow species are presented. All measurements were made in a smallholder farm in Igarapé-Açu, northeastern Pará State, Brazil. Light spectral composition (330 to 1100 nm) was monitored at two heights (ground level and 1 m) in a six-year-old natural fallow, 1.5-year-old natural fallow, and 1.5-year-old fallows enriched with Acacia angustissima, Acacia mangium, Clitoria racemosa, Inga edulis, Sclerolobium paniculatum , and a mixture of these trees. Light-quality parameters including photosynthetically active radiation, phytochrome active radiation, and blue active radiation changed most drastically in the stands enriched with A. mangium . Stomatal conductance was higher for A. mangium than the other trees and four common indigenous fallow vegetation species ( Phenakospermum guyannense, Davilla rugosa, Lacistema pubescens , and Myrcia bracteata ). Results suggest that the enrichment of fallows with A. mangium may promote changes in light and water vapor exchange regimes, with potential effects on species diversity in fallows.

Journal

Agroforestry Systems – Springer Journals

Published: Dec 1, 1999

There are no references for this article.