Hillslope position

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August undefined, 2024

WebDec 1, 2009 · Two adjacent sites were selected, consisting of a natural forest and deforested cultivated land on a loess hillslope located in Agh-Su watershed, Kalaleh area of Golestan (55°27′–55°42′E, 37°22′–37°29′N) Northeast of Iran (Fig. 1), with an average annual temperature of 16 °C and 650 mm of precipitation.The parent material is composed … WebIn an ideal setting, suites of soils predictably occur along the standard hillslope positions (summit, shoulder, backslope, footslope, toeslope), forming what is known as a catena. Reality is usually much more complex, and soil component Alpha may actually have been found at several hillslope positions. With a little aggregation and re ...

Effects of hillslope position on soil water infiltration and ...

WebMar 1, 2024 · Hillslope position can influence the SCEP via redistribution of precipitation, soil erosion, and deposition of exogenous materials [32,44]. In our study, the surface soil CEC at the backslope was significantly lower than that at the summit and footslope due to surface runoff erosion. WebJan 1, 2024 · At the hillslope scale, the upper slope position yields material, transport is dominant at the backslope section, and at the footslope part the sedimentation is prevalent. This is a dynamic question and the consequence of the shallow soils in the upper part of the slope is that they generate higher runoff rates ( Bracken et al., 2015 , Martz ... incisive ct power 排数和层数

Topographical Controls on Hillslope‐Scale Hydrology Drive Shrub ...

WebDec 1, 2024 · One-way analysis of variance (ANOVA) was conducted to assess the differences in the physical properties between the various soil layers and the different hillslope positions (Lix et al., 1996). ANOVA was also performed to determine the effect of different hillslope positions on the infiltration capacity, preferential flow indices, and root … WebApr 1, 2015 · Abstract. Hillslope position has long been important in soil geomorphology. At the scale of county-level soil maps, more soil boundaries are based on topography than … WebThe hillslope profile position that forms the concave surface at the base of a hillslope. It is a transition zone between upslope sites of erosion and transport (shoulder, backslope) and downslope sites of deposition (toeslope). Compare … incisive ct power

Digital classification of hillslope position - Geospatial …

Hillslope processes — EarthSurface 0.0.1 documentation - Read …

WebApr 1, 2024 · For each hillslope, five slope positions were selected as testing sites: upper (U), middle-upper (MU), middle (M), middle-lower (ML), and lower (L). The distance between adjacent slope positions was about 150 m. For each test position, three nearby test plots were established to measure infiltration properties, soil properties, and crop ... WebMay 5, 2024 · Using minirhizotron observations from 150 tubes located at 50 sites strategically placed at different hillslope positions across a first-order catchment, we examined how position along a hillslope impacts fine root dynamics. Results. Contrary to our hypotheses, we found no significant hillslope effects on fine root tip production or … inbound representativeWebFeb 1, 2024 · Five grid cells that represent three slope positions (Methods) were modeled across the Kougarok Hillslope transect (g1–g5, have dimensions of 85, 125, 120, 120, and 120 m, respectively). incisive ct 仕様

"WebMost soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. The values printed to the left (number of component records) and right (Shannon entropy) of stacked bars can be used to judge the reliability of trends. Shannon entropy values ... " - Hillslope position

Hillslope position

Infiltration properties affected by slope position on cropped ...

WebThe term soil catena is used to describe the lateral variation in soils over a hillslope. A slope can be broken into sections known as a ridge, crest, midslope, and toeslope. The ridge or hilltop tends to accumulate organic matter that allows formation of … WebJan 13, 2015 · Hillslope position has long been important in soil geomorphology. At the scale of county-level soil maps, more soil boundaries are based on topography than any other soil-forming factor. However, the inability to accurately delineate topographic breaks across hillslopes—either due to lack of sufficient topographic resolution or the proper ...

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WebJan 17, 2024 · The subplots for soil erosion assessment with SfM, installed at the upper, middle, and footslope position of the hillslope differed with respect to slope inclination. After correcting the mean soil surface elevation changes of these plots by using predicted bulk density changes, the elevation changes were generally smaller as compared to the ... WebApr 10, 2024 · During that time, team members do a practice description of the profile, describing each horizon’s texture, color and structure, the hillslope position of the soil, various erosion and site suitability interpretations, and other soil properties. Afterward, the team will talk about the story of the soil with their coaches.

WebSince inflection points in slope–area space are thought to indicate changes in process between diffusive hillslope processes and advective fluvial processes at a saturation threshold (Tucker and Bras, 1998; Clubb et al., 2016), these failures probably represent hillslope positions that failed at saturation when throughflow was high. WebAug 31, 2016 · The meaning of HILLSLOPE is hillside. Recent Examples on the Web Is the hillslope stable behind the place? — Erik Klemetti, Discover Magazine, 31 Aug. 2016 In …

WebHillslope position represents a composite of terrain characteristics, that is, profile curvature, slope gradient, and relative elevation, which are mentally synthesized by soil scientists in the ... WebChapter structure. Hillslopes are an almost universal landform, occupying some 90% of the land surface. In hilly and mountainous regions, long-term downslope movement of soil on hillslopes can play a crucial role governing the rate at which landscape evolves through time. Although river incision is often considered to mainly drive landscape ...

WebApr 6, 2024 · There is a lack of information about the hydrological effects of spatial harvest patterns in terms of their effects on streamflow. In this paper, we examined harvest amount and hillslope position effects on flow indices (Q70; Q50 and Q10) and water yield in a small catchment covered with a fast-growing Eucalyptus plantation.

Web中国科学院水利部水土保持研究所成立于1956年，是中国科学院在西北地区建立的第一个科研机构。1987年由中国科学院和水利部双重管理，1995年经国家批准确定现所名。1998年被中国科学院列入国家知识创新工程首批试点单位。1999年根据国务院文件，与杨凌其它6个科教单位合并组建“西北农林科技 ... incisive definition englishWebFeb 10, 2024 · On the one hand, the CT position is the uppermost position of the hillslope and a large amount of clay can be transported to downslope positions by surface run-off with the result that soil structure at the CT position becomes more compact. Therefore, the highest clay content appeared at the FV position. incisive ct essentialsWebApr 11, 2024 · The deposition areas of channelized debris flows and hillslope debris flows were 2.68 and 0.35 km 2, respectively. The debris flows events caused both the destruction of PR303 and > 30 casualties. The position of the event is shown in Fig. 6 a. Download : Download high-res image (215KB) Download : Download full-size image; Fig. 3. inbound response incWebThe ecologically-relevant geophysical (ERGo) landforms dataset is a comprehensive classification of landforms based on hillslope position and dominant physical processes that covers most of North America. Four hillslope positions form a natural sequence of topographic units along the catena: ridges/peaks (summits), upper slopes (shoulders), … inbound request meaningWebJan 13, 2015 · Hillslope position has long been important in soil geomorphology. At the scale of county-level soil maps, more soil boundaries are based on topography than any … inbound requestWebDec 1, 2024 · The hillslope is an essential natural spatial gradient that influences hydrological processes by affecting water distribution, surface flow, soil erosion, and groundwater recharge. ... Differences in the hydraulic processes of each hillslope position contributed to the redistribution, transportation, and storage of surface and belowground … incisive financial publishing limitedWebNov 2, 2024 · We used two years of field observations of volumetric soil moisture at three depths (15, 30, and 100 cm) across five topographic positions (riparian, toeslope, sideslope, shoulder, and ridge) along three hillslope transects to better understand how soil moisture changes with hillslope position and through time. incisive foramen on radiograph