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FIP 1.0 soybean data: Insights on soybean growth from eight years of high-throughput image field phenotyping. [PDF]

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Keller B, Kirchgessner N, Oppliger C, Kronenberg L, Roth L, Zumsteg O, Corrado S, Liebisch F, Aasen H, Storni N, Tschurr F, Zellweger H, Betrix CA, Barendregt C, Hund A, Walter A.   +15 more
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Canopy Closure Rate and Forest Structure

Ecology, 1997
Natural disturbances produce openings in forest canopies. Gap opening and closure create a mosaic of regenerating phases in the forest, which are a source of environmental heterogeneity, contributing to the maintenance of community diversity. In this study we measured the rate of canopy closure using hemispherical photographs taken in the same points ...
Teresa Valverde, Jonathan Silvertown
openaire   +1 more source

Canopy spectral invariants for remote sensing of canopy structure

2009 First Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, 2009
The concept of canopy spectral invariants expresses the observation that simple algebraic combinations of leaf and canopy spectral reflectances become wavelength independent and determine two canopy structure specific variables - the recollision and escape probabilities.
Yu. Knyazikhin, M. Schull, null Liang Hu, R. Myneni, P.L. Carmona   +4 more
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Impact of rice canopy structure on canopy reflectance spectra

SPIE Proceedings, 2006
Plant canopy reflectance is affected not only by the optical properties of canopy components, but also by canopy structure. In this paper, the radiative transfer model was used to simulate rice canopy bi-directional reflectance to determine its sensitivity to leaf area index (LAI) and inclination.
Yunmei Li, Jay Gao, Yong Zha
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Forest Canopy Structural Properties

2008
The forest canopy is the interface between the land and the atmosphere, fixing atmospheric carbon into biomass and releasing oxygen and water. The arrangement of individual trees, differences in species morphology, the availability of light and soil nutrients, and many other factors determine canopy structure.
Marie-Louise Smith, Jeanne Anderson, Matthew Fladeland   +2 more
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Measuring plant canopy structure

Remote Sensing of Environment, 1985
The potential of three systems to quantify plant canopy structure, key input data to canopy reflectance models is examined. The results show an optical radar system is potentially capable of providing the most fundamental type of structural data, the area, and the direction of the normal of each small piece of foliage in each cube of space in the ...
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Structural Assessment of Rapid Deployment Canopy Structure

Advances in Structural Engineering, 2006
A lightweight, deployable canopy system has been designed to provide weather protection for events seating. Built as a cantilever truss fixed to the back of seating systems, the canopy avoids the use of columns within the viewing area and is deployed from the ground level.
Elsheikh, Ahmed, Gengnagel, Christoph
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Modeling canopy structure and heterogeneity across scales: From crowns to canopy

Forest Ecology and Management, 1997
Abstract Canopy studies have been limited in ecological investigations due to problems of canopy accessibility, and the lack of efficient sampling and modeling methods. The primary objective of this study was to develop an efficient modeling approach to describe the 3-dimensional, hierarchical structure of individual crown shells within stands and ...
Bo Song, Jiquan Chen, Paul V. Desander, David D. Reed, Gay A. Bradshaw, Jerry F. Franklin   +5 more
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Sunfleck dynamics and canopy structure in a Phaseolus vulgaris L. canopy

International Journal of Biometeorology, 1998
Photosynthetic photon flux density (PPFD) fluctuations were quantified in crops of beans (Phaseolus vulgaris L.) in the field as the canopy developed between July and October. Two different methods were used to select sunflecks and shadeflecks.
Victor L. Barradas, Hamlyn G. Jones, Jerry A. Clark   +2 more
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