This study presents a tracer technique based on the fluorescent properties of quinine to help visualization shallow flows and allow quantitative measurement overland flow velocities. Laboratory experiments were conducted compare traditional dye thermal techniques with this novel (quinine) by injecting solution other tracers into flowing surface water. The leading-edge velocities, estimated usin...

The GeoWEPP model has estimated water and soil losses caused by erosion at the watershed level in different parts of world. However, this was developed its parameters have been adjusted for temperate climates, which are from tropical climates such as those found Brazil. Our study evaluated performance estimating three micro-watersheds Cerrado (i.e., savannah) southeastern Mato Grosso state, Maj...

A reliable prediction of event soil loss at the plot scale can be obtained by Universal Soil Loss Equation (USLE)-type models. For Sparacia site (South Italy), USLE-MB model was recently developed, in which effect erosive agent is modeled using rainfall erosivity index USLE a power b1 > 1 runoff coefficient QR. In this investigation, parameterized separately data collected for rill and inter...

This research explored the effects of biochar on slope runoff and sediment transport processes hydrodynamic mechanism rill erosion under seasonal freeze–thaw climate in black soil area Northeast China. The four slopes 1.8, 3.6, 5.4 7.2° were set, corn straw was used, three contents 0 kg m−2 (B0 treatment), 6 (B6 treatment) 12 (B12 applied. experimental plot placed outdoors to simulate cycle slo...

Examples of sediment budgets are needed to document the range budget types and their controls. Sediment for three small agricultural catchments (7.6 15.6 km2) in southwestern Australia dominated by channel gully erosion, with sheet rill erosion playing a subordinate role. Erosion was increased clearing naturally swampy valley floors hillslopes agriculture grazing, episodic intense rainstorms. T...

Soil erosion resistance is influenced by intrinsic soil properties and multiple external factors. This study investigated the effect of tea planting age on to flowing water (reflected rill erodibility (Kr) critical shear stress (τc)) in Three Gorges Reservoir Area. One slope farmland (as control) five plantations cultivated for 3 34 years were selected sampling sites. The results indicated that...

In this section, we critically review a variety of so-called ‘wrinkle structures’ in an attempt to help distinguish between crinkly decorations arising from physical processes that acted on siliciclastic bedding surfaces, and true microbially induced ‘wrinkle structures’. The latter, however, are not easily differentiated from the numerous small-scale, crinkly irregularities on ancient bedding ...