The grain size composition and distribution of river sediments are important for understanding regional geomorphological evolution, source-sink processes drainage ecology. Shiyang River basin, an inland system in northwestern China, provides environmental context within which to investigate the relationship between sediment particle factors. Based on analysis characteristics modern riverbed sed...

MPSIAC is currently known as an appropriate method to measure sediment ofWatershed basins of the country while there has not been any sensitivity analysis so far forthis method. In this study, required data for MPSIAC model were gathered from six basins;Amame-Kamarkhani, Kand-Golandok, Tang Kenesht (from two different references), Nojian(from three different references), Pegahe sorkh katvand (f...

Assessing the impact of glaciations on topography and co-evolution ice-sheet dynamics requires a thorough understanding factors that control fjord morphology. We investigate role lithology glacial valley form using topographic analyses numerical landscape evolution models. measure depths widths from East Central Greenland (68°N–75°N), find width, with wider fjords in softer rocks (i.e., sedimen...

This paper presents an inverse analysis of the unobserved trigger factors with respect to the slope failures based on the Structural Equation Modeling (SEM). The quantitative prediction models generally construct the relationship between the past slope failures and the causal factors (i.e. lithology, soil, slope, aspect, etc.), but does not deal with the trigger factors(i.e. rail fall, earthqua...

the use of temporary runoff and underground dried-up water courses has been implemented by managers in recentyears to compensate for water shortages in arid and semi-arid regions. one way to use this water is to set up anunderground sandy dam in front of such water courses; selecting a suitable water course is the most important issue ofsuch a purpose. in the present research, this matter was i...

First posted February 4, 2021 For additional information, contact: Director, Columbia Environmental Research CenterU.S. Geological Survey4200 New Haven RoadColumbia, MO 6520 The data summarized in this report provide a baseline characterization of the physical attributes riverine ecosystems two landscapes managed by National Park Service—Ozark Scenic Riverways, Missouri, and Buffalo River, Arka...

Pedodiversity is considered the cornerstone of biodiversity. This work aimed to (1) assess pedodiversity according vegetation, topographic factors, and lithology (2) identify major soil-forming factors on soil organic matter (SOM) stock at a 0–30 cm depth. These goals were reached using data from 147 georeferenced profiles distributed along 400–1000 m (≤1000) 1000–2134 (>1000) altitudinal gr...

51 samples from the Middle Triassic black shales (organic carbon−rich silt− stones; up to 4.9% TOC – Total Organic Carbon) from the stratotype section of the Bravaisberget Formation (western Spitsbergen) were analyzed with respect to isotopic composition of pyritic sulphur ( 34S) and TOC. Isotopic composition of syngenetic py− rite−bound sulphur shows wide ( 34S from −26‰ to +8‰ VCDT) and narro...