Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Seyyed Yousef Erfanifard"'
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 26, Iss 2, Pp 178-188 (2018)
Interspecific interaction of tree species is an important process in establishing spatial structure of species associations in ecosystems with low species diversity. This study was aimed to investigate the interspecific interactions of Montpellier ma
Externí odkaz:
https://doaj.org/article/7dd2c52580cc48238ef5e3d972b83a2a
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 25, Iss 4, Pp 574-584 (2017)
Topography is recognized as one of the effective drivers in spatial pattern of trees scattered on steep slopes. Topography influences spatial distribution of trees by changes in light availability, soil moisture and microclimate. This study was aimed
Externí odkaz:
https://doaj.org/article/19b627291e0f4c899f1d6fdc1a98276b
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 25, Iss 3, Pp 495-505 (2017)
Stand structure and species diversity are two useful parameters for complex assessment of forest biodiversity, and provide important information for management and decision making for appropriate silvicultural system. For this purpose, five one ha pl
Externí odkaz:
https://doaj.org/article/6ebb13964966488cb24a0b61e8b6679c
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 25, Iss 2, Pp 264-274 (2017)
The spatial distribution analysis of trees in arid and semi-arid regions presents valuable information about their interactions and impacts on one another. This study was aimed to investigate how biometric characteristics of mount Atlas mastic (Pista
Externí odkaz:
https://doaj.org/article/14ebb790b84c4da3a0734426dd849921
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 23, Iss 4, Pp 626-636 (2015)
Density (i.e. number of trees per unit area) is one of the important structural attributes of forest stands which is appropriate to understand forest dynamics. The k-Nearest Neighbour (k-NN) method is a distance sampling method which is commonly used
Externí odkaz:
https://doaj.org/article/be628d350e8e45839056642516b10d45
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 23, Iss 3, Pp 413-424 (2015)
Understanding the ecological processes underlying the spatial distribution of trees is enabled by simulation of their spatial structure within stands. Summary statistics enable modelling the spatial point patterns of trees and provide an efficient re
Externí odkaz:
https://doaj.org/article/4a766011def34a4ba5bf7697a4c7c058
Autor:
Seyyed Yousef Erfanifard
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 22, Iss 4, Pp 649-663 (2014)
Sustainable forest management in Zagros Mountains entails accurate information on tree crown density, which could be possibly derived from remote sensing data. Moreover, those remote sensing products need to be objectively evaluated. In this study, t
Externí odkaz:
https://doaj.org/article/3bb674bf27ad4f5bae7eada878cbdc73
Publikováno v:
Journal of Wildlife and Biodiversity, Vol 2, Iss 2, Pp 15-29 (2018)
To achieve effective forests management it is necessary to obtain reliable statistical data like the number of stands, diameter at breast height (DBH), and crown volume. While traditional methods of the forests measurements are very labor intensiv
Publikováno v:
Journal of Remote Sensing & GIS.
In Iran, forest inventory information has been essential with respect to land management because 10% of Iran is composed of forests. Therefore, accurate forest information such as tree counts, height, DBH, and volume are critical for forest managemen