Determining of equilibrium state in uneven – aged oriental beech forests of Northern – Iran
This paper aimed to study the frequency distribution of tree number, basel area and volume in the uneven-aged oriental beech which are importent factors for determining of equilibrium state. For this purpose, six sample plots each covering one ha (100*100m) were established in different beech stands...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | fas |
| Published: |
Research Institute of Forests and Rangelands of Iran
2007-06-01
|
| Series: | تحقیقات جنگل و صنوبر ایران |
| Subjects: | |
| Online Access: | http://ijfpr.areeo.ac.ir/article_108166_cd703c23d82e062061c8715302798d80.pdf |
| _version_ | 1819047855363457024 |
|---|---|
| author | Alireza Eslami Khosro Sagheb-Talebi Manoochehr Namiranian |
| author_facet | Alireza Eslami Khosro Sagheb-Talebi Manoochehr Namiranian |
| author_sort | Alireza Eslami |
| collection | DOAJ |
| description | This paper aimed to study the frequency distribution of tree number, basel area and volume in the uneven-aged oriental beech which are importent factors for determining of equilibrium state. For this purpose, six sample plots each covering one ha (100*100m) were established in different beech stands of Neka region in Mazandaran province at the Caspian forests. All trees with dbh more than 7.5cm were measured and the number of trees in the first diameter class (N10), as well as number of standing and marked trees for cutting were assesed. The results showed that the N10 of the plots varied between 7 and 74 per ha. The mean annual diameter increment calculated to 2.7mm. The basel area varied between 26 and 42.7 m2ha-1 , while the volume varied between 388 and 509 m3ha-1. A combination of datas showed that the equilibrium state would be expected, where the comulative basel area of the stand varies between 21 and 25 m2ha-1 with a least N10 of 120 ha-1. Considering the red rot, the target diameter for harvesting of trees could be fixed between 80 and 85cm. |
| first_indexed | 2024-12-21T11:06:59Z |
| format | Article |
| id | doaj.art-392e4deaa88040e188675d4a2ad32efe |
| institution | Directory Open Access Journal |
| issn | 1735-0883 2383-1146 |
| language | fas |
| last_indexed | 2024-12-21T11:06:59Z |
| publishDate | 2007-06-01 |
| publisher | Research Institute of Forests and Rangelands of Iran |
| record_format | Article |
| series | تحقیقات جنگل و صنوبر ایران |
| spelling | doaj.art-392e4deaa88040e188675d4a2ad32efe2022-12-21T19:06:12ZfasResearch Institute of Forests and Rangelands of Iranتحقیقات جنگل و صنوبر ایران1735-08832383-11462007-06-0115210492108166Determining of equilibrium state in uneven – aged oriental beech forests of Northern – IranAlireza Eslami0Khosro Sagheb-Talebi1Manoochehr Namiranian2Member of Scientific board. Eslamic Azad University. Rasht branchMember of Scientific board, Research Institute of Forests and RangelandsMember of Scientific board, Faculty of natural Resources, University of TehranThis paper aimed to study the frequency distribution of tree number, basel area and volume in the uneven-aged oriental beech which are importent factors for determining of equilibrium state. For this purpose, six sample plots each covering one ha (100*100m) were established in different beech stands of Neka region in Mazandaran province at the Caspian forests. All trees with dbh more than 7.5cm were measured and the number of trees in the first diameter class (N10), as well as number of standing and marked trees for cutting were assesed. The results showed that the N10 of the plots varied between 7 and 74 per ha. The mean annual diameter increment calculated to 2.7mm. The basel area varied between 26 and 42.7 m2ha-1 , while the volume varied between 388 and 509 m3ha-1. A combination of datas showed that the equilibrium state would be expected, where the comulative basel area of the stand varies between 21 and 25 m2ha-1 with a least N10 of 120 ha-1. Considering the red rot, the target diameter for harvesting of trees could be fixed between 80 and 85cm.http://ijfpr.areeo.ac.ir/article_108166_cd703c23d82e062061c8715302798d80.pdfCaspian forestsdiameter incrementequilibrium stateN10oriental beechStructure |
| spellingShingle | Alireza Eslami Khosro Sagheb-Talebi Manoochehr Namiranian Determining of equilibrium state in uneven – aged oriental beech forests of Northern – Iran تحقیقات جنگل و صنوبر ایران Caspian forests diameter increment equilibrium state N10 oriental beech Structure |
| title | Determining of equilibrium state in uneven – aged oriental beech forests of Northern – Iran |
| title_full | Determining of equilibrium state in uneven – aged oriental beech forests of Northern – Iran |
| title_fullStr | Determining of equilibrium state in uneven – aged oriental beech forests of Northern – Iran |
| title_full_unstemmed | Determining of equilibrium state in uneven – aged oriental beech forests of Northern – Iran |
| title_short | Determining of equilibrium state in uneven – aged oriental beech forests of Northern – Iran |
| title_sort | determining of equilibrium state in uneven aged oriental beech forests of northern iran |
| topic | Caspian forests diameter increment equilibrium state N10 oriental beech Structure |
| url | http://ijfpr.areeo.ac.ir/article_108166_cd703c23d82e062061c8715302798d80.pdf |
| work_keys_str_mv | AT alirezaeslami determiningofequilibriumstateinunevenagedorientalbeechforestsofnortherniran AT khosrosaghebtalebi determiningofequilibriumstateinunevenagedorientalbeechforestsofnortherniran AT manoochehrnamiranian determiningofequilibriumstateinunevenagedorientalbeechforestsofnortherniran |