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18.239  Articles
1 of 1.825 pages  |  10  records  |  more records»
Tree height growth measurements at monthly and annual time scales are important for calibrating and validating forest growth models, forest management and studies of forest ecology and biophysical processes. Previous studies measured the terminal growth o... see more

Tree height is an important piece of information in forest management. Cost, time, and effort are some of the limiting factors in extracting tree height values on a large scale. The canopy height model approach through aerial photography using UAV can be ... see more

AbstractInformation on tree stem characteristics and dimensions is sparse, especially information that would enhance conservation and trade monitoring efforts for species where bark is harvested for medicinal use. Several tree stem characteristics were in... see more

Estimate with greater precision the height of plants has been a challenge for the scientific community working with this theme. The objective this study is to evaluate the spatial variation of tree heights at different spatial scales to areas of the city ... see more

The planting of well feathered trees are crucial in a high density orchard, than unbranched rods. Lateral bud-brake can be effectuated by several agro-technical methods in order to overcome apical dominance. Main targets of the researches were to investig... see more

The orchard was established in spring, 2004 with crowned apple trees of “KNIP BAUM” type. The distance of plantation is 3,25 x 1,25 m, the rootstock is M 9 and the studied varieties are Idared, Golden Delicious Reinders, Jonagold Decosta and Campion.It wa... see more

Aim of study: The objective of this study is to test the validity of the DBH and total height allometric models fitted to the crown polygon data obtained by the application of a crown delineation and individualisation algorithm which uses the geometrical ... see more

Aim of study: The study aims to analyse the potential use of low-cost unmanned aerial vehicle (UAV) imagery for the estimation of Pinus pinea L. variables at the individual tree level (position, tree height and crown diameter).Area of study: This study wa... see more

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 imp... see more

1 of 1.825 pages  |  10  records  |  more records»