Evolution of spectral behavior and chemical composition in the tree canopy of a dehesa ecosystem
In the context of the BIOSPEC and FLUXPEC projects (http://www.lineas.cchs.csic.es/fluxpec/), spectral and biophysical variables measurements at leaf level have been conducted in the tree canopy of a holm oak dehesa (Quercus ilex) ecosystem during four vegetative periods. Measurements of bi-conical...
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Universitat Politècnica de València
2016-06-01
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| Series: | Revista de Teledetección |
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| Online Access: | http://polipapers.upv.es/index.php/raet/article/view/5688 |
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| author | R. González-Cascón J. Pacheco-Labrador M. P. Martín |
| author_facet | R. González-Cascón J. Pacheco-Labrador M. P. Martín |
| author_sort | R. González-Cascón |
| collection | DOAJ |
| description | In the context of the BIOSPEC and FLUXPEC projects (http://www.lineas.cchs.csic.es/fluxpec/), spectral and biophysical variables measurements at leaf level have been conducted in the tree canopy of a holm oak dehesa (Quercus ilex) ecosystem during four vegetative periods. Measurements of bi-conical reflectance factor of intact leaf (ASD Fieldspec 3® spectroradiometer), specific leaf mass (SLM), leaf water content (LWC), nutrient (N, P, K, Ca, Mg, Mn, Fe, and Zn) and chlorophyll concentration were performed. The spectral measurements have been related with the biophysical variables by stepwise and partial least squares regression analyses. These analyses allowed to identify the spectral bands and regions that best explain the evolution of the biophysical variables and to estimate the nutrient contents during the leaf maturation process. Statistically significant estimates of the majority of the variables studied were obtained. Wavelengths that had the highest contributions explaining the chemical composition of the forest canopy were located in spectral regions of the red edge, the green visible region, and the shortwave infrared. |
| format | Article |
| id | doaj-art-faf663cfff2044ab9a09f17fb7dc59fc |
| institution | Kabale University |
| issn | 1133-0953 1988-8740 |
| language | English |
| publishDate | 2016-06-01 |
| publisher | Universitat Politècnica de València |
| record_format | Article |
| series | Revista de Teledetección |
| spelling | doaj-art-faf663cfff2044ab9a09f17fb7dc59fc2025-01-02T15:32:10ZengUniversitat Politècnica de ValènciaRevista de Teledetección1133-09531988-87402016-06-01046314310.4995/raet.2016.56884361Evolution of spectral behavior and chemical composition in the tree canopy of a dehesa ecosystemR. González-Cascón0J. Pacheco-Labrador1M. P. Martín2Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)Consejo Superior de Investigaciones Científicas (CSIC)Consejo Superior de Investigaciones Científicas (CSIC)In the context of the BIOSPEC and FLUXPEC projects (http://www.lineas.cchs.csic.es/fluxpec/), spectral and biophysical variables measurements at leaf level have been conducted in the tree canopy of a holm oak dehesa (Quercus ilex) ecosystem during four vegetative periods. Measurements of bi-conical reflectance factor of intact leaf (ASD Fieldspec 3® spectroradiometer), specific leaf mass (SLM), leaf water content (LWC), nutrient (N, P, K, Ca, Mg, Mn, Fe, and Zn) and chlorophyll concentration were performed. The spectral measurements have been related with the biophysical variables by stepwise and partial least squares regression analyses. These analyses allowed to identify the spectral bands and regions that best explain the evolution of the biophysical variables and to estimate the nutrient contents during the leaf maturation process. Statistically significant estimates of the majority of the variables studied were obtained. Wavelengths that had the highest contributions explaining the chemical composition of the forest canopy were located in spectral regions of the red edge, the green visible region, and the shortwave infrared.http://polipapers.upv.es/index.php/raet/article/view/5688espectro-radiometría de camporeflectividad de hoja intactanutrientes foliaresclorofilaSLMLWCQuercus ilex |
| spellingShingle | R. González-Cascón J. Pacheco-Labrador M. P. Martín Evolution of spectral behavior and chemical composition in the tree canopy of a dehesa ecosystem Revista de Teledetección espectro-radiometría de campo reflectividad de hoja intacta nutrientes foliares clorofila SLM LWC Quercus ilex |
| title | Evolution of spectral behavior and chemical composition in the tree canopy of a dehesa ecosystem |
| title_full | Evolution of spectral behavior and chemical composition in the tree canopy of a dehesa ecosystem |
| title_fullStr | Evolution of spectral behavior and chemical composition in the tree canopy of a dehesa ecosystem |
| title_full_unstemmed | Evolution of spectral behavior and chemical composition in the tree canopy of a dehesa ecosystem |
| title_short | Evolution of spectral behavior and chemical composition in the tree canopy of a dehesa ecosystem |
| title_sort | evolution of spectral behavior and chemical composition in the tree canopy of a dehesa ecosystem |
| topic | espectro-radiometría de campo reflectividad de hoja intacta nutrientes foliares clorofila SLM LWC Quercus ilex |
| url | http://polipapers.upv.es/index.php/raet/article/view/5688 |
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