نتایج جستجو برای: forest trees
تعداد نتایج: 184211 فیلتر نتایج به سال:
Several studies have shown that when a single wildlife stock is influenced by several adjacent forest stands, through production of habitat and/or forage, the optimal harvest timing of those stands can be interdependent. This study adds a second possible dependency between trees and wildlife browsing by the wildlife species may damage valuable trees. The optimal joint management of trees and wi...
Classical methods for classification of pixels in multispectral images include supervised classifiers such as the maximum-likelihood classifier, neural network classifiers, fuzzy neural networks, support vector machines, and decision trees. Recently, there has been an increase of interest in ensemble learning – a method that generates many classifiers and aggregates their results. Breiman propo...
We introduce forest straight-line programs (FSLPs) as a compressed representation of unranked ordered node-labelled trees. FSLPs are based on the operations of forest algebra and generalize tree straight-line programs. We compare the succinctness of FSLPs with two other compression schemes for unranked trees: top dags and tree straight-line programs of first-child/next sibling encodings. Effici...
Quantifying forest growth and determination of its affective factors are fundamental for forest management. This study examines the effects of biotic and abiotic factors on the diameter increment of oriental beech (Fagus orientalis Lipsky) in a high-elevation forest in northern Iran using permanent sample plots. The aim of this study was identification and quantifying environmental factors such...
Knowing spatial pattern of plant communities is necessary to recognition of forest ecology and management. In order to investigation on the spatial distribution pattern of wild cherry, forest management plan of Hajikola-Tirancoly in Mazandaran Province was selected. The locations of Prunus avium L.individuals with 100% inventory were recorded through GPS equipment in three areas of case study ...
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