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Remote sensing of plant functional types

Remote sensing of plant functional types Conceptually, plant functional types represent a classification scheme between species and broad vegetation types. Historically, these were based on physiological, structural and/or phenological properties, whereas recently, they have reflected plant responses to resources or environmental conditions. Often, an underlying assumption, based on an economic analogy, is that the functional role of vegetation can be identified by linked sets of morphological and physiological traits constrained by resources, based on the hypothesis of functional convergence. Using these concepts, ecologists have defined a variety of functional traits that are often context dependent, and the diversity of proposed traits demonstrates the lack of agreement on universal categories. Historically, remotely sensed data have been interpreted in ways that parallel these observations, often focused on the categorization of vegetation into discrete types, often dependent on the sampling scale. At the same time, current thinking in both ecology and remote sensing has moved towards viewing vegetation as a continuum rather than as discrete classes. The capabilities of new remote sensing instruments have led us to propose a new concept of optically distinguishable functional types (‘optical types’) as a unique way to address the scale dependence of this problem. This would ensure more direct relationships between ecological information and remote sensing observations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png New Phytologist Wiley

Remote sensing of plant functional types

New Phytologist , Volume 186 (4) – Jun 1, 2010

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References (178)

Publisher
Wiley
Copyright
Copyright © 2010 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0028-646X
eISSN
1469-8137
DOI
10.1111/j.1469-8137.2010.03284.x
pmid
20569415
Publisher site
See Article on Publisher Site

Abstract

Conceptually, plant functional types represent a classification scheme between species and broad vegetation types. Historically, these were based on physiological, structural and/or phenological properties, whereas recently, they have reflected plant responses to resources or environmental conditions. Often, an underlying assumption, based on an economic analogy, is that the functional role of vegetation can be identified by linked sets of morphological and physiological traits constrained by resources, based on the hypothesis of functional convergence. Using these concepts, ecologists have defined a variety of functional traits that are often context dependent, and the diversity of proposed traits demonstrates the lack of agreement on universal categories. Historically, remotely sensed data have been interpreted in ways that parallel these observations, often focused on the categorization of vegetation into discrete types, often dependent on the sampling scale. At the same time, current thinking in both ecology and remote sensing has moved towards viewing vegetation as a continuum rather than as discrete classes. The capabilities of new remote sensing instruments have led us to propose a new concept of optically distinguishable functional types (‘optical types’) as a unique way to address the scale dependence of this problem. This would ensure more direct relationships between ecological information and remote sensing observations.

Journal

New PhytologistWiley

Published: Jun 1, 2010

Keywords: ; ; ; ; ; ; ;

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