Remediation Potential of Forest Forming Tree Species Within Northern Steppe Reclamation Stands
نویسندگان
چکیده
منابع مشابه
Pure stands of temperate forest tree species
Pure stands of temperate forest tree species modify soil respiration and N turnover N. Brüggemann, P. Rosenkranz, H. Papen, K. Pilegaard, and K. Butterbach-Bahl Forschungszentrum Karlsruhe, Institute for Meteorology and Climate Research, Atmospheric Environmental Research (IMK-IFU), Garmisch-Partenkirchen, Germany Risø National Laboratory, Plant Biology and Biogeochemistry Department, Roskilde,...
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Two different estimation methods to estimate the tree species proportions of forest stands were compared using ERS-1/2 and Landsat TM images as test data. Overall, the estimation method based on the pixelwise classification performed better than neural network method because the differences between the results acquired with training and test sets were smaller. The best results were got using da...
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Tree species proportions of forest stands were estimated using data measured by Toposys laser scanner. Employed estimation method was multilayer perceptron neural network with error back-propagation training algorithm. Measurements were divided into 2*2 m squares and then those measurement which were higher than determined DTM were used to compute features. The purpose of extracted features wer...
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Log prices can vary significantly by grade: grade 1 logs are often several times the price per unit of grade 3 logs. Because tree grading rules derive from log grading rules, a model that predicts tree grades based on tree and stand-level variables might be useful for predicting stand values. The model could then assist in the modeling of timber supply and in economic optimization. Grade models...
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ژورنال
عنوان ژورنال: Ekológia (Bratislava)
سال: 2018
ISSN: 1337-947X
DOI: 10.2478/eko-2018-0007