منابع مشابه
Ice-driven creep on Martian debris slopes
[1] Accumulations of rocky debris at the base of bedrock escarpments on Mars have mean inclinations of 20 , well below the angle of repose ( 35 ). These inclinations decrease with increasing latitude, suggesting a climatic influence. We present evidence that these low inclinations are the result of gravitational creep driven by repeated deposition and sublimation of ground ice. We estimate the ...
متن کاملRoots and the stability of forested slopes
Root decay after timber cutting can lead to slope failure. In situ measurements of soil with tree roots showed that soil strength increased linearly as root biomass increased. Forests clear-felled 3 years earlier contained about one-third of the root biomass of oldgrowth forests. Nearly all of the roots < 2 mm in diameter were gone from 7-year-old logged areas while about 30 percent of the < 17...
متن کاملSimulating Side Slopes on Locomotion Interfaces using Torso Forces
This paper describes the biomechanical experimental validation of simulating side slope during walking on a treadmill style locomotion interface. The side slope effect is achieved by means of a lateral force applied to the waist of the walking subject. Results are provided and discussed for both simulated and real side slopes, showing a substantial biomechanical equivalence in the walking patte...
متن کاملDivergent phenological response to hydroclimate variability in forested mountain watersheds.
Mountain watersheds are primary sources of freshwater, carbon sequestration, and other ecosystem services. There is significant interest in the effects of climate change and variability on these processes over short to long time scales. Much of the impact of hydroclimate variability in forest ecosystems is manifested in vegetation dynamics in space and time. In steep terrain, leaf phenology res...
متن کاملRelating nutrient uptake with transient storage in forested mountain streams
Streams control the timing and delivery of fluvial nutrient export from watersheds, and hydraulic processes such as transient storage may affect nutrient uptake and transformation. Although we expect that hydraulic processes that retain water will increase nutrient uptake, the relationship between transient storage and nutrient uptake is not clear. To examine this relationship, we injected a co...
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ژورنال
عنوان ژورنال: Journal of Geography (Chigaku Zasshi)
سال: 1992
ISSN: 0022-135X,1884-0884
DOI: 10.5026/jgeography.101.193