Results 221 to 230 of about 11,437,124 (248)
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Within-stand spatial structure and relation of boreal canopy and understorey vegetation
Journal of Vegetation Science, 2006AbstractQuestion: How do spatial patterns and associations of canopy and understorey vegetation vary with spatial scale along a gradient of canopy composition in boreal mixed‐wood forests, from younger Aspen stands dominated by Populus tremuloides and P. balsamifera to older Mixed and Conifer stands dominated by Picea glauca?
S. Kembel, M. Dale
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Forest Ecology and Management, 1997
Abstract The first part of this paper highlights spatial stand structure as the central stand characteristic and introduces methods of pattern identification. This involves two nearest-neighbour methods for the identification of stand structures, i.e., the aggregation index R by Clark and Evans [Clark, Ph.J. and Evans, F.C., 1954. Distance to nearest
Hans Pretzsch
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Abstract The first part of this paper highlights spatial stand structure as the central stand characteristic and introduces methods of pattern identification. This involves two nearest-neighbour methods for the identification of stand structures, i.e., the aggregation index R by Clark and Evans [Clark, Ph.J. and Evans, F.C., 1954. Distance to nearest
Hans Pretzsch
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European Journal of Forest Research, 2007 Forestry inventory practices have, in the past, concentrated on obtaining information primarily required for timber management. To assess the ecological impact of exploitation, particularly under continuous cover forest management, diversity measures are required that consider the structural diversity in a forest stand. The measure of surround that was
Graz, Patrick
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Stand Structure and Spatial Pattern of Commercial Species in Logged and Unlogged Venezuelan Forest
Forest Ecology and Management, 1998Abstract The impact of logging on the stand structure and spatial pattern of commercial species was studied along a chronosequence of 5–19-year old logged stands in the Forest Reserve of Caparo, Venezuela. For comparison, a mature forest stand was surveyed. A systematic sampling design was applied. On average, 10.2 trees/ha with a bole volume of 66.5
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Canadian Journal of Forest Research, 2023
Spatial arrangement of trees is determined by a complex suite of factors including disturbance history, competition, and resource availability. These spatial patterns drive adaptive capacity by influencing arrangement of growing space, neighborhood ...
Jessica L. Wikle, A. D'Amato
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Spatial arrangement of trees is determined by a complex suite of factors including disturbance history, competition, and resource availability. These spatial patterns drive adaptive capacity by influencing arrangement of growing space, neighborhood ...
Jessica L. Wikle, A. D'Amato
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Spatially Correlated Forest Stand Structures: A Simulation Approach Using Copulas
Computers and Electronics in Agriculture, 2010John Kershaw
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The spatial characteristics of stand structure in Pinus torreyana
Plant Ecology, 1999The arrangement of trees within a stand by location and age (stand structure) is in part determined by the life history strategy of the species and the disturbance history of the stand. In western North America such disturbances are often the product of wildfires and human management activities.
Michael L. Wells, Arthur Getis
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The study of the stand simulation based on the spatial structure
2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications, 2012Through the research of the stand simulation methods, there is a lack of common mechanism in the simulation rules. These methods do not use the stand structure as rules of the simulations and most of them depend on the qualitative simulation instead of the quantitative simulation.
Yilong Kuang +5 more
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Fine‐scale spatial genetic structure in mixed oak stands with different levels of hybridization [PDF]
Molecular Ecology, 2007 AbstractOaks are model species for the study of natural introgressive hybridization. High interfertility among oak taxa might result in collective evolution, through transpecific spread of advantageous alleles, challenging the standard concept of species.
Valbuena-Carabaña, M. +3 more
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Use of interactive forest growth simulation to characterise spatial stand structure
Forest Ecology and Management, 2004The forest stand growth simulator TRAGIC++ (tree response to acidification in groundwater in C++) which has been developed to serve as a decision support system and a visualisation tool for scientists and forestry practitioners is introduced. TRAGIC++ places an emphasis upon visualisation techniques while at the same time providing detailed information
Lael Parrott, Holger Lange
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