Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Manochehr Namiranian"'
Publikováno v:
مجله جنگل ایران, Vol 12, Iss 1, Pp 131-145 (2020)
Orthphoto mosaic, and digital elevation models (DEMs) that created from UAV imagery can be used to delineate tree crowns. The goal of this research is to compare two segmentation techniques in the estimation of crown diameter. In this regard, two suc
Externí odkaz:
https://doaj.org/article/0b2fa26fae3a4e9992c4ec67482f0a82
Publikováno v:
مجله جنگل ایران, Vol 10, Iss 4, Pp 501-515 (2019)
Today, the important of growth models as an important management tool and factors affecting them is clear. So, in this study, factors affecting the growth models were examined. Data from 256 permanent sample plots for the years 2003 and 2012 of Kheyr
Externí odkaz:
https://doaj.org/article/861833c2328d4b71b90ddc6181f4f116
Publikováno v:
Annals of Forest Research, Vol 57, Iss 1, Pp 31-38 (2014)
Populus euphratica Oliv. is a native species in arid and semi- arid zone of Iran distributing naturally in the vast regions. We studied the variation in fruit morphological traits in P. euphratica trees originating from seven provenances of Iran. P.
Externí odkaz:
https://doaj.org/article/cd73e251e31b4f6fbae12d4a22fb585a
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 9, Iss 1, Pp 1-36 (2002)
Poplar cultivation are the most important sources of wood production in the country and the lands along Zanjan-Rood river are one the best sites for poplar plantation. The plantation consists mostly of two species: P. nigra cv.”pubescens” and P
Externí odkaz:
https://doaj.org/article/61820bf41fb443e394ed3b5f38df9fc7
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 7, Iss 1, Pp 35-64 (2001)
The cultivation of poplars supply some of countrys demands of wood. Thus, they have an important role to reduce the pressure on forests. The poplar plantation along the Zanjan-Rood river blanks are in valuable. This project was prepared and executed
Externí odkaz:
https://doaj.org/article/c879888e613846be940ea6379a8c92c1
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 3, Iss 1, Pp 1-60 (1999)
The research project of determining Beech seeding cycle was conducted at Kelardasht region of Caspian Forests. Thirty dominant Beech trees were selected for quantity and quality measurement. After soil and ground cover sampling and tree measurments,
Externí odkaz:
https://doaj.org/article/3f511e8b44a543d5b8c688ab2ba42998
Autor:
Vahid Nasiri, Marc Pierrot-Deseilligny, A. A. Darvishsefat, Hossein Arefi, Arnaud Le Bris, Manochehr Namiranian
Publikováno v:
Canadian Journal of Forest Research. 51:962-971
Tree height and crown diameter are two common individual tree attributes that can be estimated from unmanned aerial vehicle (UAV) images thanks to photogrammetry and structure from motion. This research investigates the potential of low-cost UAV aeri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f644e100660c5b33a60f342fa14f9af
https://doi.org/10.1139/cjfr-2020-0125
https://doi.org/10.1139/cjfr-2020-0125
Publikováno v:
Journal of Remote Sensing and Gis. 12:35-52
برآورد میزان زیستتوده در تودههای جنگلی با روشهای سنجش از دوری اهمیت بسیاری دارد. همزماننبودن دریافت دادههای ماهوارهای و اطل
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4681be5a3bf953f63b4794977d672e4f
https://doi.org/10.52547/gisj.12.4.35
https://doi.org/10.52547/gisj.12.4.35
Publikováno v:
International Journal of Applied Earth Observation and Geoinformation. 61:32-45
Inventories of mixed broad-leaved forests of Iran mainly rely on terrestrial measurements. Due to rapid changes and disturbances and great complexity of the silvicultural systems of these multilayer forests, frequent repetition of conventional ground
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a4a4c54c0a91a6cd1d322bd4bfcd013
https://doi.org/10.1016/j.jag.2017.05.003
https://doi.org/10.1016/j.jag.2017.05.003