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Remote Sensing Research Priorities in Tropical Dry Forest Environments
Author(s) -
SánchezAzofeifa G. A.,
Castro K. L.,
Rivard B.,
Kalascka M. R.,
Harriss R. C.
Publication year - 2003
Publication title -
biotropica
Language(s) - Spanish
Resource type - Journals
SCImago Journal Rank - 0.813
H-Index - 96
eISSN - 1744-7429
pISSN - 0006-3606
DOI - 10.1111/j.1744-7429.2003.tb00273.x
Subject(s) - tropical and subtropical dry broadleaf forests , tropical forest , geography , remote sensing , tropics , tropical rain forest , rainforest , agroforestry , environmental science , environmental resource management , forestry , ecology , biology
Satellite multi– and hyper‐spectral sensors have evolved over the past three decades into powerful monitoring tools for ecosystem processes. Research in temperate environments, however, has tended to keep pace with new remote sensing technologies more so than in tropical environments. Here, we identify what we consider to be three priority areas for remote sensing research in Neotropical dry forests. The first priority is the use of improved sensor capabilities, which should allow for better characterization of tropical secondary forests than has been achieved. Secondary forests are of key interest due to their potential for sequestering carbon in relatively short periods of time. The second priority is the need to characterize leaf area index (LAI) and other biophysical variables by means of bidirectional reflectance function models. These biophysical parameters have importance linkages with net primary productivity and may be estimated through remote sensing. The third priority is to identify tree species using hyper‐spectral imagery, which represents an entirely new area of research for tropical forests that could have powerful applications in biodiversity conservation. RESUMEN En las últimas tres decadas, los sensores satelitales multi e hiper‐espectrales han evolucionado hasta convertirse en importantes herramientas para el monitoreo de los ecosistemas. La investigación en los ecosistemas templados y boreales ha seguido el paso de los avances en los sistemas de percepción remota, mientras que en los sistemas tropicales existe un desface significative. En este articulo identificamos y revisamos tres prioridades básicas en la investigación basada en sensores remotos de las regiones neotropicales del bosque seco. Estas prioridades están relacionadas con el monitoreo de bosques secundarios, el desarrollo de estudios relacionados con la cuantificación del área foliar por médio de métodos ópticos y finalmente el desarrollo de técnicas, que ligadas a información hiper‐espectral, puedan ser utilizadas para la identificación de especies de árboles en zonas tropicales. Esta última prioridad representa una nueva área de investigación en los bosques tropicales con importantes connotaciones para la conservación de la biodiversidad boilógica.

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