Arroyo-MoraSanchez-AzofeifaKalacskaEtAl2005

Référence

Arroyo-Mora, J.P., Sanchez-Azofeifa, G.A., Kalacska, M., Rivard, B., Calvo-Alvarado, J.C., Janzen, D.H. (2005) Secondary forest detection in a neotropical dry forest landscape using Landsat 7 ETM+ and IKONOS imagery. Biotropica, 37(4):497-507. (Scopus )

Résumé

We integrate forest structure and remotely sensed data for four successional stages (pasture, early, intermediate, and late) of a tropical dry forest area located in the Sector Santa Rosa of the Guanacaste Conservation Area in northwestern Costa Rica. We used a combination of spectral vegetation indices derived from Landsat 7 ETM+ medium resolution and IKONOS high-resolution imagery. The indices (using the red and near-infrared bands) simple ratio and normalized difference vegetation index separated the successional stages well. Two other indices using mid-infrared bands did not separate successional stages as well. In a comparison of the successional stages with chronological age, there was no separability in the spectral reflectance among different age classes. Successional stages, in contrast, showed distinct groups with minimal overlap. We also applied a simple validation in another dry forest located in the Palo Verde National Park in the province of Guanacaste, Costa Rica, with reasonably good results.

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@ARTICLE { Arroyo-MoraSanchez-AzofeifaKalacskaEtAl2005,
    AUTHOR = { Arroyo-Mora, J.P. and Sanchez-Azofeifa, G.A. and Kalacska, M. and Rivard, B. and Calvo-Alvarado, J.C. and Janzen, D.H. },
    TITLE = { Secondary forest detection in a neotropical dry forest landscape using Landsat 7 ETM+ and IKONOS imagery },
    JOURNAL = { Biotropica },
    YEAR = { 2005 },
    VOLUME = { 37 },
    PAGES = { 497-507 },
    NUMBER = { 4 },
    ABSTRACT = { We integrate forest structure and remotely sensed data for four successional stages (pasture, early, intermediate, and late) of a tropical dry forest area located in the Sector Santa Rosa of the Guanacaste Conservation Area in northwestern Costa Rica. We used a combination of spectral vegetation indices derived from Landsat 7 ETM+ medium resolution and IKONOS high-resolution imagery. The indices (using the red and near-infrared bands) simple ratio and normalized difference vegetation index separated the successional stages well. Two other indices using mid-infrared bands did not separate successional stages as well. In a comparison of the successional stages with chronological age, there was no separability in the spectral reflectance among different age classes. Successional stages, in contrast, showed distinct groups with minimal overlap. We also applied a simple validation in another dry forest located in the Palo Verde National Park in the province of Guanacaste, Costa Rica, with reasonably good results. },
    COMMENT = { Cited By (since 1996): 16 Export Date: 10 February 2010 Source: Scopus CODEN: BTROA doi: 10.1111/j.1744-7429.2005.00068.x },
    ISSN = { 00063606 (ISSN) },
    KEYWORDS = { Costa Rica, Guanacaste Conservation Area, IKONOS, Landsat 7 ETM+, Pattern recognition, Remote sensing, Santa Rosa National Park, Successional stage, Tropical dry forest, dry forest, Landsat, remote sensing, tropical forest },
    OWNER = { Luc },
    TIMESTAMP = { 2010.02.10 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-24944490795&partnerID=40&md5=5a8fb5ec100df483c363147f1dc3b3d6 },
}

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