What question did this study set out to answer?

Develop and evaluate a bottom-up modeling approach to estimate canopy-scale isoprene fluxes across Neotropical forest sites based on tree species composition and biomass.

April 21, 2004Global Change BiologyOpen Access

Variation in potential for isoprene emissions among Neotropical forest sites

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Authors

PHP. C. HarleyDenver School of Nursing PVPérola de Castro VasconcellosWiLAN (Canada)LVLee A. VierlingUniversity of Idaho

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Implication

Ecological modeling study reveals that isoprene-emitting biomass ranges from 20% to 42% across Neotropical forests, indicating that forest composition drives variation in canopy emissions.

Key Points

Develop and evaluate a bottom-up modeling approach to estimate canopy-scale isoprene fluxes across Neotropical forest sites based on tree species composition and biomass.
Screened isoprene emissions across 125 tree species at six Brazilian Amazon sites and developed a family-level taxonomic framework to estimate emissions for unmeasured taxa.
Analyzed 14 tree censuses across four Neotropical forest sites using basal area weighting to quantify the proportion of isoprene-emitting foliar biomass.
Modeled canopy-scale fluxes using light and temperature response algorithms and compared predictions against measured above-canopy fluxes at two sites.
Approximately 38% of the 125 evaluated tree species emitted isoprene, with isoprene-emitting biomass varying across sites from 20% to 42% (mean = 31%, SD = 8%).
The bottom-up canopy model overestimated measured fluxes by approximately 50%, though observed differences between sites were largely explained by variation in isoprene-emitting biomass.

Cite This Study

Harley et al. (2004) studied this question.

synapsesocial.com/papers/6a70ef9de71d69abee08f2a6 https://doi.org/10.1111/j.1529-8817.2003.00760.x

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Implication

Ecological modeling study reveals that isoprene-emitting biomass ranges from 20% to 42% across Neotropical forests, indicating that forest composition drives variation in canopy emissions.

Variation in potential for isoprene emissions among Neotropical forest sites

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Implication

Key Points

Cite This Study

Variation in potential for isoprene emissions among Neotropical forest sites

Discussion

Member takes

Implication

Key Points

Cite This Study

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