نتایج جستجو برای: hyrcanian area

تعداد نتایج: 584356  

ژورنال: The Iranian Journal of Botany 2010
حسن زارع مایوان حمید قلی زاده علیرضا نقی نژاد, محمد امینی راد

Carex humilis Leyss. از تیره اویارسلام برای اولین بار از ایران و منطقه فلورا ایرانیکا گزارش می‌شود. این گیاه از جمله گیاهان مناطق مرتفع کوهستانی در گیلان است که در ارتباط با مطالعه اکولوژیکی این مناطق جمع آوری شده است. یادداشت‌های تاگزونومیکی و پراکنش این گونه ارائه شده است.

KH. Sagheb-Talebi M. Amiri R. Rahmani

Canopy gaps are one of the most important structural features of forest ecosystems, and studying of them can have useful results and implications for forest management. The aim of this study is investigation of characteristics and regeneration within canopy gaps in an intact beech stand in the Shastkalateh Experimental Forest of Hyrcanian region, north of Iran. All canopy gaps and related fores...

Journal: : 2022

The effect of Silvicultural Methods on the Structural Characteristics Forest Stand and Soil Properties in Intermediate Hyrcanian Beech Forests (Case study: Alandan-Sari Series Forests)

Journal: : 2022

Localization and Prioritization of Ecovillages Indices in Hyrcanian Forest (Case Study: Darabkola Forests)

Recent decades have witnessed the growing use of non-native plants in Iran while their use is very challenging and high-cost for the country. This raised a new approach in recent decades towards the use of native plants. Native species are precious because they possess the main ecological factors and they are already compatible with the region. Accordingly, this research was conducted to evalua...

B. Sotoudeh Foumani S. Mohammadi Limaei T. Rostami Shahraji

The area of natural forest in Iran is approximately 12.4 million hectares, comprising 7.5%  of the total area of Iran. Forest management in the country was changed to the legislature after order of the Forest Nationalization Law in 1963. With  civilization development, pressure on forests was significantly increased. In the early  20th century a system of development planning began as a series ...

2013
Ali Sattarian Mohammad Reza Akbarian Mehrdad Zarafshar Piero Bruschi Payam Fayyaz Ali SAttAriAn MohAMMAd rezA AkbAriAn MehrdAd zArAfShAr Piero bruSchi PAyAM fAyyAz

Phenotypic variation in four natural populations of Parrotia persica (Hamamelidaceae), a species considered a living fossil endemic to the Hyrcanian forest, was evaluated through leaf morphometric and multivariate analysis. Furthermore, plasticity and leaf fluctuating asymmetry (LFA) were studied. Our findings clearly displayed significant divergence among sites. The smallest lamina size, the h...

Journal: :caspian journal of enviromental sciences 0

canopy gaps are one of the most important structural features of forest ecosystems, and studying of them can have useful results and implications for forest management. the aim of this study is investigation of characteristics and regeneration within canopy gaps in an intact beech stand in the shastkalateh experimental forest of hyrcanian region, north of iran. all canopy gaps and related fores...

Journal: رستنیها 2006
A. GHAHREMAN A.R. NAQINEZHAD, B. HAMZEH’EE F. ATTAR, M. ASSADI,

The Caspian (Hyrcanian) lowland forest zone in northern Iran is characterized by small remnant alder forest communities, dominated or subdominated with an Euxino-Hyrcanian element, Alnus glutinosa ssp. barbata. The first floristic inventory of these alder forests in northern Iran is presented. The floristic catalogue is based on the data of 133 phytosociological releves in eight different alder...

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