This paper characterizes the growth and crown morphology of young balsam ®r saplings naturally regenerated under a gradient of understory light environments and intraspeci®c competition densities for two size classes (50±100 cm and 100± 200 cm). Most growth and crown morphological parameters investigated were strongly related to the natural light gradient investigated (3±83% full sunlight), but...

The relationship between a tree's crown radius and diameter at breast height (DBH) has a variety of uses including forest competition studies, tree crown densities, spacing and stoclung relationships, wildlife habitat suitability models, and tree volume estimations. Estimating DBH from mean crown radius (MCR) is of interest to natural resource managers because MCR can be estimated from high res...

We studied the relationships among 5-year radial (diameter and basal area) growth of red oak (genus Quercus, subgenus Erythrobalanus) crop trees and predictor variables representing individual tree vigor, distance-dependant competition measures, and distance-independent competition measures. The red oaks we examined are representative of the commercially and ecologically important oak species o...

conditional monitoring is prerequisite to prevent severe damage or falling down the trees. problems such as trunk decays, reduces trees resistance against wind and floods. in this study, a mathematical modeling technique is being selected to determine the trees strength against such events. finally, an applicable model for safety factor was created by having numeral (dimensions of crown and tru...

Tree crowns and growth rings are physiologically functionally connected through supporting resource sharing. Management interventions may strongly influence tree by altering this linkage. However, conventional approaches have limited ability to characterize crown shape precisely, thus hindering our understanding of the relationship between ring patterns. We, thus, aimed test three hypotheses: (...

The characteristics and distribution of foliage biomass are important aspects the crown structures trees. In this study, we developed a model at branch level annual shoot (i.e., all branches on an increment main tree bole) using sample 51 Korean pine trees that were destructively sampled in Liaoning Province, northeast China. A variety independent variables, including branches, trees, forest co...

The effect of tree age, size and competition on above ground growth allocation was studied with 69 Pinus sylvestris trees. Competition was described by tree-level indicators (needle density, crown ratio and height-diameter ratio). The stem, branch and needle growth were determined by stem and branch radial increments and tree level biomass analysis. Combined growth of compartments was strongly ...

BACKGROUND AND AIMS Morphogenetic plasticity may be as important as physiological plasticity in determining plant adaptability to changing environmental conditions. This study examines the importance of crown plasticity of trees in stands. METHODS A three-dimensional forest simulator is used to explore the impact of crown shape plasticity on tree growth. Crown deformation is mediated through ...