نتایج جستجو برای: from haloxylon
تعداد نتایج: 5600240 فیلتر نتایج به سال:
saluk mount is selected for devonian biostratigraphy. this area located at southwest of bojnurd. in this study three sections are selected and two sections, chahar-borj and tabar sections with a thickness of 650 m, which consist mainly of calcareous sediments was studied in detailed but third section, qelli section, with a thickness of about 450m which consist mainly of sandstone and evaporates...
based on the latest records of typhlops vermicularis merrem, 1820 from iran, this species is distributed in the northern and southern regions of the country. in this study, new records of typhlops vermicularis are presented and it is shown that distribution range of this species is extended towards the eastern and western iran, and according to the new distribution map, it can be assumed that t...
Haloxylon aphyllum (Minkw.) Iljin is a treelike shrub from the Chenopodiaceae family with thick, gnarled, highly branched trunk dark gray bark. It propagated by seeds. The most typical conditions of natural habitat are valley-like depressions ridges and hollows hilly sands, valleys channels old rivers, often more or less close groundwater occurrence, as well takyrs takyr-like serozem soils. Bla...
the present study is paid to the evaluation of the welfare program of the unemployment insurance in iran. the main purpose which was the main reason for performing this thesis, was the unemployment insurance plan’s challenges in iran such as financial problems of this plan, prolongation of the credit receipt for some insured people, unemployment slow exiting from the unemployment insurance fund...
‘romanticism’ and ‘romantic’ are among the most controversial terms in literature. most readers, when encountering these words, would think of the well-known period of romanticism of the first three decades of the nineteenth century and the great six english poets known as ‘the big six’ of this period. however, romanticism does not belong to certain artists in a special period; one may seek ele...
Growth is restricted by both water and phosphorus (P), balancing the relationship between non−structural carbohydrates (NSCs) carbon: nitrogen: (C:N:P) essential for Haloxylon ammodendron to adapt arid habitats. The survival growth strategies of dominant species H. in a desert ecosystem were examined order better serve restoration degraded ecosystems desertification control. Three salt gradient...
Haloxylon ammodendron (C.A.Mey.) Bge. is crucially important for stabilizing sand dunes in the desert area of Junggar Basin and has thus been widely planted oasis–desert ecotone windbreak fixation purposes since 1980s. The spatial distribution structural characteristics plantations three different ages—planted 1983 (36a), 1997 (22a), 2004 (15a)—on southwestern edge Gurbantünggüt Desert were stu...
بررسی تطبیقی بازده حاصل از کاربرد تحلیل های تکنیکال و روش خرید و نگهداری در بورس اوراق بهادار تهران چکیده در این پژوهش بازدهی حاصل از روش های تجزیه و تحلیل تکنیکی و روش خرید و نگهداری در فرض قابل پیش بینی بودن قیمت ها و عدم وجود شکل ضعیف فرضیه بازار کارا که توسط فاما در سال 791 مطرح گردیده است ، فعالیت میکند . در این مطالعه چهار روش از پر کاربردترین و معتبر ترین روش های تحلیل تکنیکی مورد بر...
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