Results 261 to 270 of about 160,304 (317)
Improved leaf area index estimation in Jujube trees by fusing spatial-temporal features from UAV RGB time-series with a deep learning framework. [PDF]
Front Plant SciLiu Y, Gao Y, Wang J, Liu D, Zheng Z.
europepmc +1 more source
Canopy occupation volume as an indicator of canopy photosynthetic capacity
New Phytologist, 2021 Summary Leaf angle and leaf area index together influence canopy light interception and canopy photosynthesis. However, so far, there is no effective method to identify the optimal combination of these two parameters for canopy photosynthesis. In this study, first a robust highâthroughput method for accurate segmentation of maize organs based on 3D ...
Fusang Liu, Qingfeng Song, Yong Hu
exaly +4 more sources
Some of the next articles are maybe not open access.
Canopy spectral invariants for remote sensing of canopy structure
2009 First Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, 2009The 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.
Yuri Knyazikhin +4 more
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Concepts of In-Canopy and Near-Canopy Sprinkler Irrigation
World Environmental and Water Resource Congress 2006, 2006The use of in-canopy and near-canopy sprinkler application from mechanical move systems is prevalent in the U. S. Great Plains. These systems can reduce evaporative by nearly 15%, but introduce a much greater potential for irrigation non-uniformity. Close attention to the design, installation and operational guidelines for these systems can prevent ...
Freddie R. Lamm +2 more
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Agricultural Water Management, 1984
A one-dimensional diffusion model of canopy drying applied to a Pinus radiata forest yielded evapotranspiration rates during canopy drying less than those observed. The discrepancy indicated either there was a substantially greater interchange between the above and within canopy airflow than calculated assuming local diffusion, or there was a reduction
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A one-dimensional diffusion model of canopy drying applied to a Pinus radiata forest yielded evapotranspiration rates during canopy drying less than those observed. The discrepancy indicated either there was a substantially greater interchange between the above and within canopy airflow than calculated assuming local diffusion, or there was a reduction
openaire +1 more source
Impact of rice canopy structure on canopy reflectance spectra
SPIE Proceedings, 2006Plant 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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Analysis of canopy index values for various canopy densities
Boundary-Layer Meteorology, 1978Canopy wind profiles can often be represented by an exponential function such that wind-speeds in these vegetative canopies are a function of height and the attenuation coefficient of this wind profile relationship. To be more precise, canopy flow is a function of canopy density, element flexibility, and height.
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1989
In most studies of crop canopies or of the foliage of single plants, all leaves are treated as if they have the same properties. This is done so that we may make generalisations about the ways in which plant or crop growth rates may be interpreted as a function of leaf area.
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In most studies of crop canopies or of the foliage of single plants, all leaves are treated as if they have the same properties. This is done so that we may make generalisations about the ways in which plant or crop growth rates may be interpreted as a function of leaf area.
openaire +1 more source