نتایج جستجو برای: carpinus

تعداد نتایج: 375  

2015
Kathleen Prinz Reiner Finkeldey

PREMISE OF THE STUDY Carpinus betulus (Betulaceae) is an octoploid, ecologically important, common tree species in European woodlands. We established 11 nuclear microsatellite loci allowing for detailed analyses of genetic diversity and structure. METHODS AND RESULTS A microsatellite-enriched library was used to develop primers for 11 microsatellite loci that revealed high allele numbers and ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم پایه 1391

جنس ممرز (carpinus l.) با حدود 130 گونه، به تیره ی غان (betulaceae) تعلق دارد و گونه های آن بیشتر در نیمکره ی شمالی و عمدتاً در اروپا-آسیا انتشار دارند. بر اساس فلورا ایرانیکا، این جنس دارای دوگونه لور carpinus) orientals mill.) و ممرز (l. carpinus betulus) در جنگل های هیرکانی ایران می باشد. گونه-های این جنس از لحاظ ویژگی های ریخت شناسی بسیار متنوع بوده و بسیاری از مشکلات تاکسونومی مابین گونه-ها...

ژورنال: علوم آب و خاک 2013
احمد گلچین, , زهرا فهیم, , محمد امیر دلاور, ,

Organic carbon is the most important component of terrestrial ecosystems and any change in its abundance can have a major impact on the processes that take place in ecosystem. The aim of this study was to estimate carbon sequestration in three different elevations (200 to 1200 m from sea level) and according to vegetation type in the Khairoodkenar forest. The highest carbon sequestration was ob...

2015
Petra Kubisch Dietrich Hertel Christoph Leuschner

While most temperate broad-leaved tree species form ectomycorrhizal (EM) symbioses, a few species have arbuscular mycorrhizas (AM). It is not known whether EM and AM tree species differ systematically with respect to fine root morphology, fine root system size and root functioning. In a species-rich temperate mixed forest, we studied the fine root morphology and biomass of three EM and three AM...

2009
J. Eshaghi Rad M. Manthey A. Mataji

Species diversity is one of the most important indices used for evaluating the sustainability of forest communities. This study aims to characterize the forest communities and to identify and compare the plant species diversity in the study area. For this purpose, 152 relevés were sampled by a randomized-systematic method, using the Braun-Blanquet scale. Classification of the vegetation was con...

2012
Karel Tajovský Jan Hošek Jeňýk Hofmeister Jolanta Wytwer

Terrestrial isopods were collected in 13 forest fragments differing in area (within the range of 0.1 and 254.5 ha), shape and composition of forest vegetation (thermophilous oak, mesophilous oak-hornbeam, thermophilous oak-hornbeam, acidophilous oak, basiphilous oak, beech oak-hornbeam, moist mixed deciduous forest, plantations of deciduous and coniferous trees), all situated in the Český kras ...

زبیری , محمود, علی‌جانی, وحید, فقهی, جهانگیر, مروی مهاجر, محمدرضا,

To implement correct management of forest ecosystems, enough information in relation to the structures of tree species is necessary. In this study, the structures of trees species in Fagus, Fagus-Carpinus, Carpinus-Fagus and Carpinus-Quercus types were investigated and compared in Hyrcanian forest. The data used in this study was collected from 239 plots with an area of 1000 m2 in Gorazbon dist...

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