Zobrazeno 1 - 10
of 144
pro vyhledávání: '"height-diameter relationship"'
Autor:
Xinying Zhou, Erico Kutchartt, Jaime Hernández, Patricio Corvalán, Álvaro Promis, Martin Zwanzig
Publikováno v:
Annals of Forest Science, Vol 80, Iss 1, Pp 1-36 (2023)
Abstract Key message Here, we present a workflow for determining the optimal tree height model and calibration design for forests affected to varying degrees by anthropogenic disturbance. For mixed Araucaria-Nothofagus forests, tree height prediction
Externí odkaz:
https://doaj.org/article/20eb219885914d8ca63d6481b5d59181
Autor:
Mingyu Yin, Chunsheng Wang, Huan Wang, Qiang Han, Zhigang Zhao, Cheng Tang, Junjie Guo, Jie Zeng
Publikováno v:
Frontiers in Plant Science, Vol 14 (2023)
Tree height (H) and stem diameter at breast height (DBH) (H-D) relationship is correlated with timber yield and quality as well as stability of forest and is crucial in forest management and genetic breeding. It is influenced by not only environmenta
Externí odkaz:
https://doaj.org/article/31d9be14d90249c9a47fdd406dfbbae1
Publikováno v:
Science Journal of University of Zakho, Vol 11, Iss 1 (2023)
A sample of 120 trees was purposely selected from four different microsites (Behere, Swaratoka, Zawita, and Semel), (30 trees from each microsite) in the Duhok governorate. 100 of which were used for model calibration and the rest were used for valid
Externí odkaz:
https://doaj.org/article/c492c416cbaf4f3aa921f79683830e5b
Autor:
Yuduan Ou, Gerónimo Quiñónez-Barraza
Publikováno v:
Forests, Vol 14, Iss 8, p 1544 (2023)
The total tree height (h) and diameter at breast height (dbh) relationship is an essential tool in forest management and planning. Nonlinear mixed effect modeling (NLMEM) has been extensively used, and lately the artificial neural network (ANN) and t
Externí odkaz:
https://doaj.org/article/7c9678fc1378486db26ad61ce694374e
Akademický článek
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Publikováno v:
Floresta e Ambiente, Vol 27, Iss 4 (2020)
Abstract The aim of this study was to develop a general applicability equation to represent the hypsometric relationship of Eucalyptus benthamii Maiden et Cambage stands in Irani, Santa Catarina. The data came from a continuous forest inventory, with
Externí odkaz:
https://doaj.org/article/fff48dd9afe648599fe5cfc879258420
Autor:
Diego Rodríguez de Prado, Jose Riofrío, Jorge Aldea, James McDermott, Felipe Bravo, Celia Herrero de Aza
Publikováno v:
Forests, Vol 13, Iss 1, p 119 (2022)
Estimating tree height is essential for modelling and managing both pure and mixed forest stands. Although height–diameter (H–D) relationships have been traditionally fitted for pure stands, attention must be paid when analyzing this relationship
Externí odkaz:
https://doaj.org/article/41c175b8b4374b9fbe003462e10b793d
Akademický článek
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Publikováno v:
Journal of Forest Science, Vol 62, Iss 10, Pp 470-484 (2016)
Various forest models that estimate volume, site index, growth and yield, biomass, and sequestrated carbon amounts are based on the information of the tree heights. The tree heights are obtained either directly from measurements or indirectly estimat
Externí odkaz:
https://doaj.org/article/872b8770de7d44cab78444e490badc76
Publikováno v:
Forests, Vol 11, Iss 2, p 183 (2020)
The importance of the height-diameter (H-D) relationship in forest productivity is well known. The general nonlinear regression model, based on the mean regression technical, is not able to give a complete description of the H-D relationship. This st
Externí odkaz:
https://doaj.org/article/7034b686d65f477aa9a29096d6ff466a