نوع مقاله : مقاله پژوهشی
نویسندگان
1 مؤسسه تحقیقات جنگلها و مراتع کشور، تهران
2 دانشگاه علوم و تحقیقات تهران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
The trees in the forest ecosystem are considered huge carbon pool associated with C emission in the atmosphere. Therefore, how measuring and estimating the C stored in the trees in the forests is the main issue for ecologists. Pertaining to the majority of tree weight is related to the bole mass, we tested the non-destructive methods for estimating the C stock of oriental beech in the Hyrcanian forests as case study of Glandrood forests of Nour. C concentration was obtained by ignition. Associated with the obtained observations of dry weight and wood density, product of volume and wood density as well as introduced allometric models of beech (Fagus spp.) in the various biomes were used as non-destructive methods for bole mass C stock estimation. C concentration was 57 percent for estimating C sequestration of bole mass in this study. According to the mean residual and t values acquired by paired-t test between the estimated values and observations, allometric model of Y = exp (2.53 lnD – 3.03) with respect to the common beech (F. sylvatica) in the western forest sites of Germany and product of volume and density introduced in this study (Y = 0.0239 (D2H)) in case of multiplying by the C concentration were the application tools for estimating the C stock of oriental bole mass in the Hyrcanian forests.
کلیدواژهها [English]
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