نتایج جستجو برای: tree growth
تعداد نتایج: 976413 فیلتر نتایج به سال:
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...
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...
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...
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...
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...
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...
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...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید