Some issues when remotely-sensing the carbon balance of forest ecosystems

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1 Scopus citations

Abstract

Leaf area index (LAI) and species composition are two ecological parameters that influence atmosphere-biosphere exchange of CO2 and which can be estimated from remote sensing techniques. A process model of biosphere-atmosphere CO2 exchange was used to examine the importance of LAI and species composition when estimating canopy CO2 assimilation in 21 black spruce, white spruce, quaking aspen, paper birch, and balsam poplar forests near Fairbanks, Alaska. Model sensitivity analyses showed that LAI was the single most important parameter determining canopy assimilation. The sensitivity of canopy assimilation to species-dependent physiology was greater between life-forms than within life-forms. These analyses show that canopy assimilation in the boreal forests near Fairbanks is very sensitive to the specification of LAI and physiological differences between coniferous and deciduous trees.

Original languageEnglish
Title of host publicationIGARSS 1992 - International Geoscience and Remote Sensing Symposium
Subtitle of host publicationInternational Space Year: Space Remote Sensing
EditorsRuby Williamson, Tammy Stein
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1020-1022
Number of pages3
ISBN (Electronic)0780301382
DOIs
StatePublished - 1992
Event12th Annual International Geoscience and Remote Sensing Symposium, IGARSS 1992 - Houston, United States
Duration: May 26 1992May 29 1992

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)
Volume2
ISSN (Print)2153-6996
ISSN (Electronic)2153-7003

Conference

Conference12th Annual International Geoscience and Remote Sensing Symposium, IGARSS 1992
Country/TerritoryUnited States
CityHouston
Period05/26/9205/29/92

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