نتایج جستجو برای: 40 randomized quadrates were established. floristic list

تعداد نتایج: 3989932  

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...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی 1391

the present dissertation aims to investigate four-word lexical bundles in applied linguistics research articles by iranian and internationally-published writers. the aims of this study are two-fold: first of all, attempts have been made to create a comprehensive list of the most commonly used four-word lexical bundles categorized by their type and token frequency, their structural characteristi...

Journal: Desert 2010
a. malekian hamed Joneidi Jafari Hosein Azarnivand mohamad Zare Chahouki sh. nikoo

Abstract The objective of current research is to investigate distribution patterns of vegetation types and its relation with environmental factors in southern margin of Haj Aligholi Kavir of Damghan. Three vegetation types including Halecnemum strobilaceum, Sedlitzia rosmarinus and Artemisia sieberi were studied in marginal arid regions and uplands of the study area. Firstly, geographic locat...

Journal: :desert 2010
hosein azarnivand hamed joneidi jafari sh. nikoo mohamad zare chahouki a. malekian

abstract the objective of current research is to investigate distribution patterns of vegetation types and its relation with environmental factors in southern margin of haj aligholi kavir of damghan. three vegetation types including halecnemum strobilaceum, sedlitzia rosmarinus and artemisia sieberi were studied in marginal arid regions and uplands of the study area. firstly, geographic locatio...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک - دانشکده ادبیات و علوم انسانی 1393

this study investigates the effect of teacher’s repetition as an input enhancement technique in explicit teaching of vocabulary items on efl learners’ later retrieval. to this end, 66 persian speaking english learners, aged 18 - 29, homogenized through a standard proficiency test (opt), were chosen and put into two experimental and control groups, each 33 learners. general service list (gsl), a...

Journal: :Oklahoma Native Plant Record 2001

Journal: :Oklahoma Native Plant Record 2002

Journal: :مرتع و آبخیزداری 0
محمدعلی زارع چاهوکی استادیار دانشکده منابع طبیعی، دانشگاه تهران، ایران اصغر زارع چاهوکی دانشجوی کارشناسی ارشد دانشکده منابع طبیعی، دانشگاه تهران، ایران محمد زارع ارنانی استادیار دانشکده منابع طبیعی و کویررشناسی، دانشگاه یزد، ایران

the objective of this research was to study the relationships between edaphic and topographic factors with distribution of plant species. for this purpose, current study was conducted in eshtehard rangelands of tehran province. the sampling method was randomized–systematic and in each sampling unit, three parallel transects with 750 m length containing 45 quadrates (according to vegetation vari...

Journal: :Journal of Biology, Agriculture and Healthcare 2022

This study was conducted in Shelekomedihanialem state forest Fogera district, South Gondar Zone, Ethiopia, to identify the floristic composition, vegetation structure,diversity and regeneration status of woody plant species. Systematic sampling method used collect data from 5 transect lines 200m far apart 50(20m x20m) quadrates at distance 100m. To for seedling sapling, five 1m x sub-plots were...

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