Forest ecosystem chlorophyll, content: implications for remotely sensed estimates of net primary productivity, 2003


Dawson, T.P., North, P.R.J., Plummer, S.E. and Curran, P.J. (2003) Forest ecosystem chlorophyll, content: implications for remotely sensed estimates of net primary productivity, 2003. International Journal of Remote Sensing, 24, (3), 611-617. (doi:10.1080/01431160304984).

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Original Publication URL: http://dx.doi.org/10.1080/01431160304984

Description/Abstract

Current methods for estimating photosynthesis and hence net primary productivity (NPP) of forest ecosystems from remote sensing are based on the relationship between (i) the fraction of incident photosynthetically-active radiation absorbed by the canopy (fPAR) and (ii) spectral indices (e.g. NDVI). However, ground-based estimates of fPAR used to quantify this relationship for a specific vegetation type are derived from measurements of canopy structure only (e.g. using light interception methods such as hemispherical photography). Using a coupled leaf-canopy model of radiative transfer, we demonstrated that NDVI is highly sensitive to both canopy foliar and understorey chlorophyll content, which could account for significant errors in remotely sensed estimates of fPAR and hence NPP

Item Type: Article
ISSNs: 0143-1161 (print)
Related URLs:
Subjects: G Geography. Anthropology. Recreation > G Geography (General)
Divisions: University Structure - Pre August 2011 > School of Geography > Remote Sensing and Spatial Analysis
ePrint ID: 14790
Date Deposited: 01 Mar 2005
Last Modified: 27 Mar 2014 18:05
URI: http://eprints.soton.ac.uk/id/eprint/14790

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