نتایج جستجو برای: sahand mountains
تعداد نتایج: 15977 فیلتر نتایج به سال:
To evaluate grain yield of barley cultivars in different planting times and identifying genotypes suitable fro delayed planting under rainfed conditions, this study was carried out in 2015-2016 and 2016-2017 cropping cycle in Torogh research station in Mashhad, Iran. Two planting times; autumn and dormant seeding and 12 barley genotypes were compared as split plot arrangements in randomized co...
In this study, physiological and morphological responses of five almond cultivars to drought stress were investigated under in vitro conditions. Plantlets from five commercial almond cultivars (Supernova’, ‘Tuono’, ‘Sahand’, ‘Ferragnes ’ and ‘Shahroud 21’] were established in MS medium containing 0.5 mg per liter BAP and then subcultured in MS proliferation medium containing 1 mg per liter BAP...
Sahand volcanic rocks, with Plio-Quaternery age, is located southeast Tabriz in the northwest part of Central Iran. These rocks are mainly composed of pyroclastics (tuff and ignimberite) and lava flows (rhyolite, rhyodacite, dacite and andesite) that unconformably cover the Miocene sedimentary formations. The major constituent minerals include plagioclase and hornblende which are surrounded by ...
the genus trachylepis fitzinger, 1843 encompasses two-three species in iran: trachylepis vittata (olivier, 1804) distributed in western iran, west of the zagros mountains; t.septemtaeniata (reuss, 1834) in southern regions of the zagros mountains and t. aurata transcaucasica chernov, 1926 from northern to central parts of the zagros mountains. for study of geographic variation in the latter two...
The first four words of the title of this article match the title of Section 4 of Ron Smith’s (1979) review, “The Influence of Mountains on the Atmosphere”. Via a comprehensive survey of the literature available 25 years ago, Smith identified the key ways in which mountains potentially can affect precipitation. Little has changed regarding his conclusions. However, little factual information wa...
Citation: Cheddadi R, Henrot A-J, François L, Boyer F, Bush M, Carré M, Coissac E, De Oliveira PE, Ficetola F, Hambuckers A, Huang K, Lézine A-M, Nourelbait M, Rhoujjati A, Taberlet P, Sarmiento F, Abel-Schaad D, Alba-Sánchez F and Zheng Z (2017) Microrefugia, Climate Change, and Conservation of Cedrus atlantica in the Rif Mountains, Morocco. Front. Ecol. Evol. 5:114. doi: 10.3389/fevo.2017.001...
Chen, Y., A. Hall, and K. N. Liou (2006): Application of 3D solar radiative transfer to mountains. J. Geophys. Res., 111, D21111, doi:10.1029/2006JD007163. Lee, W.-L. (2008): Radiative transfer in atmosphere–ocean and atmosphere–mountain systems: application and parameterization Ph.D. dissertation. University of California, Los Angeles. Liou, K. N., W.-L. Lee, and A. Hall (2007): Radiative tran...
The cartographic depiction of high mountain areas has always been a challenge to generations of cartographers, surveyers and geographers. The maps resulting from this work contain a wide range of information, which are diffi cult to understand for a non-expert community. Hence the fascination of high mountain areas was up to now mostly reserved to experts and climbers. New techniques in Compute...
O nce you get to Swanton Pacific Ranch in the coastal mountains north of Santa Cruz, it's pretty obvious the 3,200-acre spread offers many things you just won't find at Cal Poly: trees, for one thing. A whole forest full of them 2,100 acres to be exact. They cover steep mountain slopes and march in tall columns down to grassy meadows. A river runs through it: Scott Creek and its tributaries. "T...
Protected areas in mountains are regularly in the focus of international efforts to conserve the environment and enable sustainable development. The following article analyses the current extend of protection in mountainous versus non-mountainous areas, sheds light on the rationales behind the establishment of mountain protected areas, and proposes directions for future endeavours in protecting...
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