نتایج جستجو برای: high slope

تعداد نتایج: 2098877  

Journal: :پژوهش های جغرافیای طبیعی 0
داود مختاری

in recent years there has been studies concerning the investigation of macro-scale geomorphic proxies of quaternary climatic changes in the study area. without detail analysis of slope geomorphic features, there can be little progress on expanding the knowledge of past slope development in the northwestern iran high mountain environments. consequently, the information pertaining to these quater...

Journal: :مرتع و آبخیزداری 0
محمد نهتانی دانشجوی دکتری آبخیزداری، دانشکدة منابع طبیعی دانشگاه تهران سادات فیض نیا استاد دانشکدة منابع طبیعی دانشگاه تهران حسن احمدی استاد دانشکدة منابع طبیعی دانشگاه تهران حمیدرضا پیروان استادیار پژوهشکدة حفاظت خاک و آبخیزداری کشور

loess deposit is one of the most important quaternary deposits of northeastern parts of iran which have high erosion rate. this study was performed with field- rainfall- simulator which has a plot area of 1 m2 in gorganrood drainage basin to determine the effective factors on sediment yield. landuse, slope and erosion feature maps were overlaid in gis to obtain land unit map. then on work units...

محمدی, مجید, پورقاسمی, حمیدرضا,

Landslide as a natural hazard is very dangerous especially in mountainous areas that result in loss of human life and property around the world. Iran is always exposed to landslide hazard especially in the north and west because of climatic and topographic conditions. The aim of this research is prioritization of landslide-conditioning factors and its landslide susceptibility mapping in the par...

Journal: :تولید گیاهان زراعی 0
نیلوفر نصرالهی دانشگاه علوم کشاورزی گرگان حسین کاظمی هیات علمی بهنام کامکار هیات علمی

in this research, geographical information system (gis) and analytical hierarchy process (ahp) were applied to agricultural land use suitability of aq-qala township for barley cropping in rainfed condition. for this purpose, 17 environmental layers of the study area collected, and thematic maps such as slope, elevation, precipitation, average, minimum and maximum temperatures and some of micro ...

الوانی نژاد, سهراب, اسماعیل زاده, امید , ذاکری پاشاکلایی, محسن,

Diversity is one of the most important issues in studies of vegetation ecology. This study was carried out in research forest of Tarbiat Modares University for surveying herbaceous and woody species diversity in relation to topographical factors (altitude, slope and aspect). For this purpose, 48 plots 400 m2 (20×20 m) were established in the region using selective sampling method. Then, the nam...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2010
C Huggel N Salzmann S Allen J Caplan-Auerbach L Fischer W Haeberli C Larsen D Schneider R Wessels

The number of large slope failures in some high-mountain regions such as the European Alps has increased during the past two to three decades. There is concern that recent climate change is driving this increase in slope failures, thus possibly further exacerbating the hazard in the future. Although the effects of a gradual temperature rise on glaciers and permafrost have been extensively studi...

Journal: :IOP Conference Series: Earth and Environmental Science 2021

Journal: :Arthroscopy: The Journal of Arthroscopic & Related Surgery 2016

Journal: :Journal of the Japan society of photogrammetry and remote sensing 2002

2005
S. NANDY J. J. JIAO

On August 13, 1995, a slope above Shum Wan Road failed due to high rainfall and caused a 30-m section of Nam Long Shan Road to collapse. The slope consists of weathered tuffs with a clay layer on the surface ofthe failure. A hydrogeological study was carried out by saturated finite difference grid model, MODFLOW, for the slope at the Shum Wan Road area. From the ground-water model, it was found...

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