نتایج جستجو برای: bounded mountain frontsalluvial fans have gentle slope
تعداد نتایج: 3044785 فیلتر نتایج به سال:
In the dynamic monitoring fixed sample plot of 25 ha coniferous broad-leaved mixed forest in temperate zone Northeast China, we used data from two surveys (2013 and 2018) microtopography plot, mycorrhizal type tree species to explore whether different types single terrain factors will affect radial growth with on a regional scale. We studied adaptability north end Changbai Mountain south slope ...
This volume presents a series of papers on the geomorphology, sedimentology and dynamics of alluvial fans, selected from those presented at the 'Alluvial Fans' Conference held in Sorbas, SE Spain in June 2003. The conference was sponsored primarily by the British Geomorphological Research Group and the British Sedimentological Research Group, both organizations affiliated to the Geological Soci...
Abstract: Alluvial fan are one of the most dynamic Quaternary landforms in arid areas.An alluvial fan in the southeast of the city Yazd was identified based on satellite images; in this research, the primary objective of this study is to investigate the surface and subsurface sedimentology of alluvial fan flasks. Twenty soil samples were taken for sedimentological studies. The result indicate ...
Past slope instabilities at Quindici (one of the five towns of Campania that was hit by catastrophic landslides on 5 May 1998) and in the Lauro Valley are investigated to improve the understanding of the landslide history in the area, as a mandatory step for the evaluation of the landslide hazard. The research was performed by combining information on past slope instabilities from both historic...
the aim of this paper is to evaluate the effect of tectonic on the volume of alluvial fans around danehkhoshk anticline. to achieve the purpose of this study, at first, borders, sweep angle(s) and radius(r) of alluvial fans were obtained based on quick bird satellite image and then difference in the altitude between the apex and toe of alluvial fans (h) were calculated based on topographic map ...
The present study shows that very low erosion class (0.23 to 8 tons per hectare per year) Romeshgan watershed, most of the area to be included in the attrition levels low, medium, large and have too much. In general we can say the area is low to moderate ability erodible. SLEMSA model for estimating erosion, environmental conditions are examined. These factors in watershed erosion rates in diff...
With the increase in rainfall, landslides occur on many gentle slopes mountainous areas of southeast China. Gentle have a particular dual geological structure, i.e., lower part is gravel soil layer with good water permeability, and surface clay relatively poor permeability. Under conditions heavy slope this structure likely to collect temporary confined water. The intermittent creep upper cause...
The Sistan Plain for a long time has faced hazards of flood, drought and sandstorm. Also due to existence of abundant water resources it had been one of the important places for men’s placement. So far, no comprehensive study has been done on environmental hazards which would include ways to overcome or decrease their impacts in Achaemenid era. The present survey aims for studying the reciproca...
We construct graphs with n vertices of maximum degree 5 whose every straight-line drawing in the plane uses edges of at least n1/6−o(1) distinct slopes. A straight-line drawing of a graph G = (V (G), E(G)) is a layout of G in the plane such that the vertices are represented by distinct points, the edges are represented by (possibly crossing) line segments connecting the corresponding point pair...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید