Sunday, November 16, 2014

 

 



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Digital.CSIC (63,567 recursos)
Repositorio institucional del Consejo Superior de Investigaciones Científicas. Digital.CSIC es un depósito de documentos digitales, cuyo objetivo es organizar, archivar, preservar y difundir en modo de acceso abierto la producción intelectual resultante de la actividad investigadora del CSIC.

(IAS) Partes de libros

Mostrando recursos 1 - 2 de 2

1. Natural and stress-induced effects on leaf spectral reflectance in Ontario species - Mohammed, G. H.; Noland, T. L.; Irving, P. H.; Sampson, P. H.; Zarco-Tejada, Pablo J.; Miller, J. R.
This study explores some of the biological factors influencing leaf-based spectral reflectance, and endeavours to answer the questions: (1) Can Ontario plant species be satisfactorily distinguished by their leaf spectra? (2) Can spectral properties be used to identify physiological strain in plants before visual symptoms appear? and (3) How strongly do factors other than species and stress affect spectral properties? Forty-four species were examined for species effects. Some general patterns were revealed, including: low reflectance in the near infrared region for conifers compared to broadleaved species; higher reflectance in the blue wavebands for species with blue hues in their foliage; and more rapid decay of the green...
(2925277 bytes; application/pdf) - 29-ago-2014

2. Bioindicators of Forest Sustainability: Progress Report - Sampson, P. H.; Mohammed, G. H.; Colombo, S. J.; Noland, T. L.; Miller, J. R.; Zarco-Tejada, Pablo J.
Measurable indicators are needed to gauge the effects of management activities and natural phenomena on forest sustainability. To meet this need, the Bioindicators of Forest Sustainability Project is testing physiological approaches to develop a Forest Condition Rating (FCR) system. An FCR system would directly support provincial policy (e.g., Forest Resource Assessment Policy) and national initiatives (e.g., Criteria and Indicators) by providing an understanding of ecosystem condition. Furthermore, this project addresses a pressing need for indicators that can support operational forest management and possible concerns of sustainability at the local level. Development of an FCR system involves interpreting remotely sensed spectral information with the aid of ground-based assessments of structural...
(2777840 bytes; application/pdf) - 29-ago-2014

 

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