Results 31 to 40 of about 225,532 (304)
Rapid Characterization of Vegetation Structure with a Microsoft Kinect Sensor
Sensors, 2013 The importance of vegetation structure and biomass in controlling land-atmosphere exchange is widely recognized, but measurements of canopy structure are challenging, time consuming, and often rely on destructive methods.
George Azzari +2 more
doaj +1 more source
Ice storm effects on the canopy structure of a northern hardwood forest after 8 years [PDF]
, 2009 Ice storms can cause severe damage to forest canopies, resulting in differential mortality among tree species and size classes and leading to long-lasting changes in the vertical structure and composition of the forest.
Hamburg, Steven P. +2 more
core +3 more sources
Crop Monitoring Using Satellite/UAV Data Fusion and Machine Learning
Remote Sensing, 2020 Non-destructive crop monitoring over large areas with high efficiency is of great significance in precision agriculture and plant phenotyping, as well as decision making with regards to grain policy and food security.
Maitiniyazi Maimaitijiang +5 more
doaj +1 more source
Scaling PRI Between Coniferous Canopy Structures [PDF]
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2013 We measured simultaneously the spectral albedo of ten Scots pine shoots and the needles constituting the shoots. Next, we used the spectral information to calculate the photochemical reflectance index (PRI) which allows to retrieve photosynthetic productivity from imaging spectroscopy data.
Matti Mottus, Miina Rautiainen
openaire +3 more sources
OENO One, 2020 Aim: To analyse unmanned aerial vehicle (UAV)-based imagery to assess canopy structural changes after the application of different canopy management practices in the vineyard.
Jingyun Ouyang +3 more
doaj
Remote Sensing, 2022 Land surface processes play a vital role in the exchange of momentum, energy, and mass between the land and the atmosphere. However, the current model simplifies the canopy structure using approximately three to six parameters, which makes the ...
Guotong Wu +9 more
doaj +1 more source
Parallel functional and stoichiometric trait shifts in South American and African forest communities with elevation [PDF]
, 2017 The Amazon and Congo basins are the two largest continuous blocks of tropical forest with a central role for global biogeochemical cycles and ecology. However, both biomes differ in structure and species richness and composition.
C. Taveirne +8 more
core +3 more sources
Crop and EnvironmentOptimized maize (Zea mays L.) canopy architecture enhances density-tolerance. DHEAP (N, N-Diethyl-2-hexanoyl oxygen radicals-ethyl amine (2-ethyl chloride) phosphonic acid salt) has been shown to increase maize upper canopy strata compactness, but its ...
Guanmin Huang +6 more
doaj +1 more source
Morphology of a canopy as a preservation structure [PDF]
WIT Transactions on The Built Environment, 2009 New technologies have enriched the exploration of architectural designs and ideas. New tools, such as parametric modelling, have enabled architects to investigate designs of “free forms” and shapes of unseen complexity in the past. Rapid prototype models provided new means to examine tectonics and spatial qualities.
P. Bhiwapurkar, I. Markov
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Laser scanning reveals bryophyte canopy structure [PDF]
New Phytologist, 2005 We evaluated laser scanning as a method to provide depth measurements for bryophyte canopies at fine spatial scales to derive surface roughness (Lr), a structural parameter. Depths to the first vertical canopy contact were measured on 5 x 5 cm2 areas of 27 bryophyte canopies using a contact probe, a commercial laser scanner and a scanner employing a ...
Steven K, Rice +2 more
openaire +2 more sources