Results 271 to 280 of about 229,710 (296)

Forest structure and physiognomy

1981
The quantity of trees on a forest plot can be assessed in various ways, notably as tree density (number of trees per unit area), basal area (total cross-sectional area at breast height — 1.3 m above the ground), as maximum height of trees, maximum girth, or as maximum crown diameter.
J. B. Hall, M. D. Swaine
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“Forest–grass” global vegetation model with forest age structure

Ecological Modelling, 2003
Abstract In the paper [Ecol. Modell. 124 (1999) 131], a set of “simplest” models of the global vegetation pattern (GVP) was suggested. All these models are based on the simple probabilistic “urn” schemes and their dynamics were sufficiently complex to present nonlinear phenomena such as multiple equilibriums and hysteresis. Although these schemes are
Yuri Svirezhev, Nicolai Zavalishin
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Forest structure database for plantation forests over China-CPSDv0

2020
Se desarrolló una base de datos de estructura sintética en todo el país para bosques de plantación en China mediante la encuesta de más de 600 publicaciones revisadas por pares utilizando un protocolo de metanálisis. Esta nueva base de datos cubre las especies de árboles, la edad media de los árboles, la altura media de los árboles, la densidad de ...
Xiuchen Wu, Xiaofei Jiang, Hongyan Liu, Craig D. Allen, Xiaoyan Li, Pei Wang, Zhongshan Li, Yuting Yang, Shulei Zhang, Fangzhong Shi, Jiaojun Zhu, Pengtao Yu, Minghua Zhou, Ping Zhao, Yanhui Wang, Chao Ye, Deliang Chen   +16 more
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Structure of the Forest

1962
Bulletin of the National Museum, Singapore, Issue 31, pp.
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Restoring forest structure and process stabilizes forest carbon in wildfire-prone southwestern ponderosa pine forests

Ecological Applications, 2015
AbstractChanging climate and a legacy of fire‐exclusion have increased the probability of high‐severity wildfire, leading to an increased risk of forest carbon loss in ponderosa pine forests in the southwesternUSA. Efforts to reduce high‐severity fire risk through forest thinning and prescribed burning require both the removal and emission of carbon ...
Matthew D, Hurteau, Shuang, Liang, Katherine L, Martin, Malcolm P, North, George W, Koch, Bruce A, Hungate   +5 more
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Forest Border Community Structure

1989
In this volume, there has so far been little discussion of the boreal forest as a plant community. It is true also of recent symposia and compendia mentioned in the Preface that most boreal forest research has been concentrated upon matters related to silvicultural characteristics of trees, the nature of the soils, nutrient cycles, and to the ...
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FOREST STRUCTURE, CANOPY ARCHITECTURE, AND LIGHT TRANSMITTANCE IN TROPICAL WET FORESTS

Ecology, 2001
Identifying factors that influence variation in light availability within forested ecosystems represents an important component in our understanding of the complex determinants of tree seedling regeneration. We assessed the influence of forest structure and canopy tree architecture on spatial heterogeneity of understory light availability in three old ...
Montgomery, R A, Chazdon, Robin L
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Assessing Forest Landscape Structure Using Geographic Windows

2003
Landscape structure, interpreted as indicator of functional processes, has become a main attribute of multiresource forest inventories, enhancing its value with respect to society needs. This approach implies effective use of earth observation techniques and geographic information systems to obtain a global view of the inventoried landscapes and to ...
RICOTTA, Carlo, P. Cecchi, G. Chirici, P. Corona, A. Lamonaca, M. Marchetti   +5 more
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Continuous-time structural equation model forests

Psychological Methods
Structural equation model (SEM) trees and forests are valuable tools for exploring predictors of group differences in SEM parameters. In longitudinal studies in particular, they hold significant potential for investigating heterogeneity in change and dynamics.
Pablo Fernández Cáncer, Manuel Voelkle, Manuel Arnold, Eduardo Estrada   +3 more
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Tropical forest transitions: structural changes in forest area, composition and landscape.

CABI Reviews, 2014
Abstract Most studies on tropical forest dynamics focus on the processes of deforestation and forest degradation and its associated ecological impacts; comparatively little attention is given to the emergence of forest transitions. This review gives an overview of forest transitions in the tropics as involving a structural reversal from a ...
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