نتایج جستجو برای: hyrcanian forest

تعداد نتایج: 106243  

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...

Journal: :environmental resources research 2014
syavash kalbi asghar fallah shaban shataee

forest types mapping, is one of the most necessary elements in the forest management and silviculture treatments. traditional methods such as field surveys are almost time-consuming and cost-intensive. improvements in remote sensing data sources and classification –estimation methods are preparing new opportunities for obtaining more accurate forest biophysical attributes maps. this research co...

Azadnejad , Saeed , Taefi Feijani , Masoud ,

Mapping of forest extent is a prerequisite to acquire quantitative and qualitative information about forests and to formulate management and conservation strategies. forest canopy density (FCD) model is one of the useful RS methods for forest mapping using satellite images. One of the most serious challenges in FCD model is the weakness in the calculation of canopy density in low density forest...

Journal: رستنیها 2014
Abaselt Hosseinzadeh Colagar Fatemeh Akbarzadeh Roshan Hamed Yousefzadeh,

Species in the genus Castanea Mill. are one of the worthwhile species in the Hyrcanian forest of west Guilan (N Iran) with low region such as Siahmazgi, Ghalerodkhan and Visrod. that do not have good condition by reason of human interfering and disease. They have varying economic importance as nut tree crops, therefore, DNA barcoding technique can be a straightforward method for taxonomic statu...

Journal: : 2022

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

Journal: :journal of sciences, islamic republic of iran 2011
p. salehi shanjani

resource sustainability requires a thorough understanding of the influence of forest management programs on the conservation of genetic diversity in tree populations. to observe how differences in forest management affect the genetic structure of fagus orientalis lipsky (oriental beech), we evaluated thirteen beech sites across hyrcanian forests, based on six microsatellite loci. significant di...

Journal: :ecopersia 2015
yahya kooch fatemeh rostayee seyed mohsen hosseini

the present study aimed to assess pure planted species (i.e., alnus subcordata l., poplus deltoids l., taxadium distichum l. rich) and a mixed natural forest (i.e., dominated by quercus castaneifolia c. a. mey. - carpinus betulus l. - parrotia persica c. a. meyer) on basis of some soil quality indices in mazandaran province, northern iran. sixteen samples per stand were taken from the top 10 cm...

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)

2013
Aidin Parsakhoo Seyed Ataollah Hosseini

This study evaluates different strategic courses of action concerning the secondary transportation sector in Hyrcanian forests of Iran. The decision support method Analytic Hierarchy Process (AHP) has been utilized in the assessment of different strategies in truck selection. The assessments are based on the opinions of a group of experts in Iranian forest industries. Results showed that the tr...

Journal: :journal of genetic resources 2015
mahsa razaz alireza naqinezhad arman mahmoodi abasalt hosseinzadeh rouhangiz abbas azimi

abstract. natural populations of carpinus orientalis mill. shrub lands occur mainly in high and middle altitudes of the hyrcanian forests, n. iran, particularly on steep rocks and forest outcrops. there are some discrepancies on the intra-specific delimitation of this important woody species. the aim of the current study was to examine the anatomical variation of stems and leaves of sixteen pop...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید