Abstract
Abstract A two-stream approximation model of radiative transfer is used to calculate values of hemispheric canopy reflectance in the visible and near-infrared wavelength intervals. Simple leaf models of photosynthesis and stomatal resistance are integrated over leaf orientation and canopy depth to obtain estimates of canopy photosynthesis and bulk stomatal or canopy resistance. The ratio of near-infrared and visible reflectances is predicted to be a near linear indicator of minimum canopy resistance and photosynthetic capacity but a poor predictor of leaf area index or biomass.
Keywords
Affiliated Institutions
Related Publications
Estimating Absorbed Photosynthetic Radiation and Leaf Area Index from Spectral Reflectance in Wheat<sup>1</sup>
Abstract Some plant growth models require estimates of leaf area and absorbed radiation for simulating evapotranspiration and photosynthesis. Previous studies indicated that spe...
Radiative Transfer in an Array of Canopies<sup>1</sup>
Abstract Theories describing radiative transfer in plant canopies are very well developed for canopies approximating full cover. However, for canopies of partial cover such as o...
Calculation of Leaf Photosynthetic Parameters Considering the Statistical Distribution of Stomatal Apertures
It was shown earlier (Laisk, Oja, and Kull, 1980) that different stomata on a barley leaf are open to different degrees. Therefore, stomatal conductance is a quantity which is s...
Theory and applications of optical remote sensing
Field measurements of bidirectional reflectance soil reflectance soil influences in remotely sensed vegetation-canopy spectra the theory of photon transport in leaf canopies est...
Optimal stomatal control in relation to leaf area and nitrogen content
<ja:p>We introduce the simultaneous optimisation of water-use efficiency and nitrogen-use efficiency of canopy photosynthesis. As a vehicle for this idea we consider the optimal...
Publication Info
- Year
- 1985
- Type
- article
- Volume
- 6
- Issue
- 8
- Pages
- 1335-1372
- Citations
- 2290
- Access
- Closed
External Links
Social Impact
Social media, news, blog, policy document mentions
Citation Metrics
Cite This
Identifiers
- DOI
- 10.1080/01431168508948283