KalacskaSanchez-AzofeifaCalvo-AlvaradoEtAl2005

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Kalacska, M., Sanchez-Azofeifa, G.A., Calvo-Alvarado, J.C., Rivard, B., Quesada, M. (2005) Effects of season and successional stage on leaf area index and spectral vegetation indices in three mesoamerican tropical dry forests. Biotropica, 37(4):486-496. (Scopus )

Résumé

We compared plant area index (PAI) and canopy openness for different successional stages in three tropical dry forest sites: Chamela, Mexico; Santa Rosa, Costa Rica; and Palo Verde, Costa Rica, in the wet and dry seasons. We also compared leaf area index (LAI) for the Costa Rican sites during the wet and dry seasons. In addition, we examined differences in canopy structure to ascertain the most influential factors on PAI/LAI. Subsequently, we explored relationships between spectral vegetation indices derived from Landsat 7 ETM+ satellite imagery and PAI/LAI to create maps of PAI/LAI for the wet season for the three sites. Specific forest structure characteristics with the greatest influence on PAI/LAI varied among the sites and were linked to climatic differences. The differences in PAI/LAI and canopy openness among the sites were explained by both the past land-use history and forest management practices. For all sites, the best-fit regression model between the spectral vegetation indices and PAI/LAI was a Lorentzian Cumulative Function. Overall, this study aimed to further research linkages between PAI/LAI and remotely sensed data while exploring unique challenges posed by this ecosystem.

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@ARTICLE { KalacskaSanchez-AzofeifaCalvo-AlvaradoEtAl2005,
    AUTHOR = { Kalacska, M. and Sanchez-Azofeifa, G.A. and Calvo-Alvarado, J.C. and Rivard, B. and Quesada, M. },
    TITLE = { Effects of season and successional stage on leaf area index and spectral vegetation indices in three mesoamerican tropical dry forests },
    JOURNAL = { Biotropica },
    YEAR = { 2005 },
    VOLUME = { 37 },
    PAGES = { 486-496 },
    NUMBER = { 4 },
    ABSTRACT = { We compared plant area index (PAI) and canopy openness for different successional stages in three tropical dry forest sites: Chamela, Mexico; Santa Rosa, Costa Rica; and Palo Verde, Costa Rica, in the wet and dry seasons. We also compared leaf area index (LAI) for the Costa Rican sites during the wet and dry seasons. In addition, we examined differences in canopy structure to ascertain the most influential factors on PAI/LAI. Subsequently, we explored relationships between spectral vegetation indices derived from Landsat 7 ETM+ satellite imagery and PAI/LAI to create maps of PAI/LAI for the wet season for the three sites. Specific forest structure characteristics with the greatest influence on PAI/LAI varied among the sites and were linked to climatic differences. The differences in PAI/LAI and canopy openness among the sites were explained by both the past land-use history and forest management practices. For all sites, the best-fit regression model between the spectral vegetation indices and PAI/LAI was a Lorentzian Cumulative Function. Overall, this study aimed to further research linkages between PAI/LAI and remotely sensed data while exploring unique challenges posed by this ecosystem. },
    COMMENT = { Cited By (since 1996): 16 Export Date: 10 February 2010 Source: Scopus CODEN: BTROA doi: 10.1111/j.1744-7429.2005.00067.x },
    ISSN = { 00063606 (ISSN) },
    KEYWORDS = { Canopy openness, Chamela-Cuixmala Biological Reserve, Forest structure, Leaf area index, Leaf phenology, Palo Verde National Park, Plant area index, Santa Rosa National Park, Satellite remote sensing, Tropical dry forest, canopy architecture, dry forest, leaf area index, seasonal variation, tropical forest, Central America, Chamela-Cuixmala Biosphere Reserve, Costa Rica, Guanacaste, Jalisco, Mexico [North America], North America, Palo Verde National Park, Santa Rosa National Park, Lorentzia },
    OWNER = { Luc },
    TIMESTAMP = { 2010.02.10 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-24944455783&partnerID=40&md5=c045b2c82f3337950db19fe33bc15bfe },
}

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