نتایج جستجو برای: tree growth

تعداد نتایج: 976413  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده مهندسی برق و الکترونیک 1391

داده­کاوی مجموعه اقلام پرسود در پایگاه داده تراکنشی، منجر به شناسایی مجموعه اقلام با بالاترین سودمندی می­شود. گرچه در سال های اخیر الگوریتم­های بسیاری برای این نمونه کار پیشنهاد شده است، اما این الگوریتم­ها، اکثراً، کارائی خود را صرف تولید مجموعه اقلام کاندید برای تولید مجموعه اقلام پرسود می­نمایند. چنانچه پایگاه داده دارای تعداد تراکنش­های بسیار زیاد و یا دارای مجموعه اقلام پرسود خیلی طولانی با...

بنایان, محمد, تهرانی فر, علی , عزیزی , مجید, کاظمی, فاطمه, کریمیان, زهرا ,

Determination of growth rate and planting space of trees in urban spaces is needed for the planting design programs and land scape management. To determine the growth rate of two tree species, Chinaberry (Melia azedarach) and Mulberry (Morus alba), data was collected on different dimensions of these trees including, tree height, tree crown height and tree crown diameter at various ages at Pardi...

Journal: :Science 1883

Estimating urban trees growth, especially tree height is very important in urban landscape management. The aim of the study was to predict of tree height base on tree diameter. To achieve this goal, 921 trees from five species were measured in five areas of Mashhad city in 2014. The evaluated trees were ash tree (Fraxinus species), plane tree (Platanus hybrida), white mulberry (Morus alba), ail...

Journal: :Australian Journal of Biological Sciences 1950

Journal: :آب و خاک 0
میترا رحمتی غلامحسین داوری نژاد محمد بنایان مجید عزیزی

in order to study the sensitivity of vegetative growth to water deficit stress of a late-maturing peach (prunus persica l. cv. elberta) under orchard conditions, an experiment was conducted as randomized complete-block design with three treatments and four repetitions in shahdiran commercial orchard in mashhad during 2011. three irrigation treatments including 360 (low stress), 180 (moderate st...

Journal: :جنگل و فرآورده های چوب 0
شمس الدین بالاپور کارشناس ارشد جنگل داری، پژوهشکدة اکوسیستم‏‏های خزری، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران توفیق صادق محمد اف عضو هیئت علمی آکادمی علوم آذربایجان، باغ گیاه شناسی مردکان، باکو، جمهوری آذربایجان شیرزاد گرایلی کارشناس ارشد ادارة کل منابع طبیعی مازندران، ساری، ایران

afghan pine one of the native tree species in eldar region of azerbaijan republic. fast growing, suited for dry climate condition, increasing wood in unit volume, reason of using eldar pine in reforestation and plantations. at this case study of absheron peninsular of baku, azerbaijan, were taken 14 trees samples of two sites. bbg, baku botanical garden and bmd, baku merdakandendrary, are two c...

G. Edusei, J. B. Tandoh O. Gyampo R. Edziah

Mitigation of atmospheric pollution has been a topic of concern over the past decades. In this study, tree rings have been used to reconstruct past climates as well as to assess the effects of recent climatic and environmental changes on tree growth. Vehicular emission is one of the major sources of pollutants in the atmosphere and this study focused on the Haatso-Atomic road which over the yea...

Journal: Pollution 2020
G. Edusei, J. B. Tandoh O. Gyampo R. Edziah

Mitigation of atmospheric pollution has been a topic of concern over the past decades. In this study, tree rings have been used to reconstruct past climates as well as to assess the effects of recent climatic and environmental changes on tree growth. Vehicular emission is one of the major sources of pollutants in the atmosphere and this study focused on the Haatso-Atomic road which over the yea...

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