نتایج جستجو برای: geophytes

تعداد نتایج: 130  

Journal: :caspian journal of environmental sciences 2014
al et f. bazdid vahdati

ata-kuh forest, a preserved area within hyrcanian relict forests, with an area of 700 ha is located in north of iran. based on floristic studies from 2011 through 2012, 194 vascular plant species were identified belonging to 143 genera and 66 families. among our samples, 24 taxa were endemic to hyrcanian area. the largest families in the area were rosaceae (10.3 %), poaceae (9.7 %), asteraceae ...

Journal: :Agronomy 2022

Climate—Madeira Strategy (CMS) foresees two models to describe the climate scenarios for Madeira region in 2050 and 2070. These anticipate an average temperature rise of 1.4 3.7 °C a decrease precipitation by 30 40%. Consequently, Madeira’s agriculture will suffer impacts change. To understand these impacts, baseline major agrosystem components needs be established, with ultimate goal monitor i...

Journal: :محیط زیست طبیعی 0
جابر شریفی عضو هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان اردبیل، دانشجوی دورۀ دکتری موسسۀ تحقیقات گیاه شناسی آکادمی ملی علوم آذربایجان. عادل جلیلی استاد پژوهش موسسۀ تحقیقات جنگل ها و مراتع ایران. شاکر قاسم اف استاد پژوهش موسسۀ گیاه شناسی آکادمی ملی علوم جمهوری آذربایجان علیرضا نقی نژاد دانشیار گروه زیست شناسی، دانشکده علوم پایه، دانشگاه مازندران، بابلسر علی اکبر ایمانی استادیارگروه گشاورزی و گیاهان دارویی دانشگاه اسلامی آزاد اسلامی واحد اردبیل

the current study aims to ordinate ecological groups in the wetlands of northern and eastern slopes of the sabalan mountain and investigate their relationship with environmental variables. the location of wetlands was found using field surveys and satellite images. in total, 32 wetland sites were identified for the sampling purpose. 320 sample plots (relevé) were selected using the systematic-r...

Journal: :پژوهش های علوم و فناوری چوب و جنگل 0

the oriental arborvitae habitat with an area of 223­ha. is located on 20 km south of fazel­abad, golestan province. the lowest and highest of its height are 820 and 1680 m.a.s.l. the floristic-physiognomic investigation performed by walked-field procedure at 2nd seasonal sequence showed that flora of this region includes 173 plant species that belong to 147 genera and 65 families, of which 5 sp...

سعیدی مهرورز, شهریار, قلی زاده, حمید, نقی نژاد, علیرضا,

Hyrcanian forests in northern Iran have important tree and shrub elements of Euro-Siberian and rare forest communities, among them beech community widely covers the mountainous forests from Western to Eastern (Gorgan) Hyrcanian region. In order to identify the floristic characteristics and affecting factors on the species richness in pure beech stands in Eastern Guilan, using systematic-random ...

Afsharzadeh, Saeid, Kharazian, Navaz, Sadeghipour, Fateme,

The Palang Galoun protected region, comprising 34935 hectares, is located 75 km northwest of Najaf Abad, and 102 km northwest of Isfahan city. The aim of this research was to assess the floristic spectrum, life form varieties, chorological analysis, determination of protected status and identification of medicinal, threatened species criteria and poisonous plants of this natural heritage. Plant...

Zh. Toupchi

Arshadchamani rangelands are placed in the north foothill of SahandMountain and near Kandovan Village. Therefore, it has plant diversity andeconomical values. In this region, medicinal plants are cut and sold by the storeswith non-standard packaging without scientific name. Regarding the economicalvalue of medicinal plants and thereby the investment necessity on these valuableresources for usin...

Journal: رستنیها 2006

Hormoz Island with 41 km³ area located in south of Bandar Abbas in  Hormozgan Province in 27º 2´ to 27º 6´ N and 56º 25´ to 56º 31´ E geographical position. In this study, 191 species are introduced. These species belong to 44 families (One family of Angiosperms, 40 families of  Dicotyledones and 3 families of  Monocotyledones) and 142 genera. Of the species recognized, nine species (4.7%) are ...

Journal: :مرتع و آبخیزداری 0
محمد جنگجو دانشیار، گروه مرتع و آبخیزداری، دانشکدة منابع طبیعی و محیط زیست، دانشگاه فردوسی مشهد فریبا نوع دوست مربی گروه زیست شناسی، دانشکدة علوم پایه، دانشگاه صنعتی خاتم الانبیای بهبهان فهیمه رفیعی کارشناس ارشد زیست شناسی، دانشکدة علوم، دانشگاه فردوسی مشهد

this research was conducted to compare plant functional types (pft) and traits in an old-field (abandoned for 28 years) and a control site, in the baharkish rangelands, quchan, iran. in the both sites, 40 randomized quadrates were established. floristic list, frequency, canopy cover and 20 vegetative, phenological and morphological plant traits were measured for all plant species, within each q...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید