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Chuan Yin, Binyu Zhang, Wanzeng Liu, Mingyi Du, Nana Luo, Xi Zhai and Tu Ba
Expansion of the entity attribute information of geographic knowledge graphs is essentially the fusion of the Internet?s encyclopedic knowledge. However, it lacks structured attribute information, and synonymy and polysemy always exist. These reduce the ...
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Sebastiano Sferlazza, Antonino Maltese, Gino Dardanelli and Donato Salvatore La Mela Veca
Aboveground biomass, volume, and basal area are among the most important structural attributes in forestry. Direct measurements are cost-intensive and time-consuming, especially for old-growth forests exhibiting a complex structure over a rugged topograp...
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Gursel Y. Çakir, Christopher J. Post, Elena A. Mikhailova and Mark A. Schlautman
Forest measurements using conventional methods may not capture all the important information required to properly characterize forest structure. The objective of this study was to develop a low-cost alternative method for forest inventory measurements an...
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Miguel C. Leon, Tamara Heartsill-Scalley, Iván Santiago and William H. McDowell
Streams and rivers of the Luquillo Experimental Forest, Puerto Rico, have been the subject of extensive watershed and aquatic research since the 1980s. This research includes understanding stream export of nutrients and coarse particulate organic matter,...
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Takumi Fujiwara and Wataru Takeuchi
The shadow fraction of the canopy is an important factor in Bidirectional Reflectance Distribution Function (BRDF) and in estimating physical quantities, such as tree height and biomass. Shadows are used as a shielding ratio for direct solar irradiance, ...
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Jessie C. Buettel, Stefania Ondei and Barry W. Brook
The study of treefall and its after-effects is a common theme in studies of forest structure and local dynamics, yet its value as descriptor of broader-scale ecological dynamics is rarely explored. Here we synthesize the most highly cited literature on t...
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Ville Luoma, Ninni Saarinen, Michael A. Wulder, Joanne C. White, Mikko Vastaranta, Markus Holopainen and Juha Hyyppä
Forest resource information has a hierarchical structure: individual tree attributes are summed at the plot level and then in turn, plot-level estimates are used to derive stand or large-area estimates of forest resources. Due to this hierarchy, it is im...
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Endre Hofstad Hansen, Liviu Theodor Ene, Terje Gobakken, Hans Ole Ørka, Ole Martin Bollandsås and Erik Næsset
Forest attributes such as tree heights, diameter distribution, volumes, and biomass can be modeled utilizing the relationship between remotely sensed metrics as predictor variables, and measurements of forest attributes on the ground. The quality of the ...
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François Girard, Serge Payette and Ann Delwaide
Field observations using chronosequences are helpful to study vegetation succession. This method allows to establish comparisons based on soil composition, stand structure, micro- and macrofossil remains from sites of different ages but on similar edaphi...
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Noureddin Nourian,Shaban Shataee-Joibary,Jahangir Mohammadi
Pág. e074
Aim of study: The objective of the study was the comparative assessment of various spatial resolutions of optical satellite imagery including Landsat-TM, ASTER, and Quickbird data to estimate the forest structure attributes of Hyrcanian forests, Golestan...
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