نتایج جستجو برای: tashtab mountains
تعداد نتایج: 15883 فیلتر نتایج به سال:
The exchange of chlorinated organic pollutants between air and vegetation in cold, mountain environments was investigated through the extraction of coniferous vegetation and high-volume air samples collected from the Canadian Rocky Mountains during the summers of 1999 and 2000. Concentrations of several compounds in vegetation increased as temperatures decreased, whereas atmospheric concentrati...
The mid-altitude zone of the Qinling Mountains in China was once dominated by birch and pine-oak belts but are now mainly covered by secondary growth following large-scale deforestation. Assessing the recovery and sustainability of these forests is essential for their management and restoration. We investigated and compared the tree species composition and community assemblages of secondary for...
Evaluating conflicting theories about the influence of mountains on carbon dioxide cycling and climate requires understanding weathering fluxes from tectonically uplifting landscapes. The lack of soil production and weathering rate measurements in Earth's most rapidly uplifting mountains has made it difficult to determine whether weathering rates increase or decline in response to rapid erosion...
Mountains on rapidly rotating neutron stars efficiently radiate gravitational waves. The maximum possible size of these mountains depends on the breaking strain of the neutron star crust. With multimillion ion molecular dynamics simulations of Coulomb solids representing the crust, we show that the breaking strain of pure single crystals is very large and that impurities, defects, and grain bou...
Although native to the southeastern United States, the red swamp crayfish (Procambarus clarkii) has become established worldwide through accidental and intentional actions by humans. In the Santa Monica Mountains of southern California, the presence of the omnivorous crayfish is associated with the absence or reduced abundance of native amphibians. The original source of P. clarkii in southern ...
This study compiles and interprets three-dimensional Weather Surveillance Radar-1988 Doppler (WSR88D) data during a 2.5-yr period and examines the typical orographic effects on precipitation mainly associated with winter storms passing over coastal northern California. The three-dimensional mean reflectivity patterns show echo structure that was generally stratiform from over the ocean to inlan...
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...
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