The unexplored role of preferential flow in soil carbon dynamics
2021年10月1日 · Preferential flow paths play a key role in soil carbon dynamics. Pore-scale carbon dynamics could be upscaled using hydraulic connectivity. A conceptual model is presented that considers how soil pores function from hydrological and microbial perspectives. Water is a crucial factor controlling the fate and processing of soil organics.
Characterizing rapid infiltration processes on complex hillslopes ...
2024年11月1日 · However, the lateral preferential flow formed at the soil–bedrock interface is an important preferential type, facilitating the rapid transfer of soil moisture infiltration. In terms of the rainfall–runoff relationship, rainwater can rapidly infiltrate deeper layers after rainfall, which not only affects the runoff process but also has ...
Preferential Flow in Soils: Review of Role in Soil Carbon Dynamics ...
Rapid and unstable preferential flow has a significant impact on soil carbon cycle. This review aims to explore the effects of preferential flow on the soil carbon cycle and indicate its characteristics and ecological responses in different ecosystems.
Effect of slope position on the spatial distribution of soil ...
21 小时之前 · The mechanisms of soil preferential flow occurrence and development are influenced by topographic and geomorphological factors. However, the complex distribution patterns of soil preferential flow paths on different slopes remain unclear. Therefore, taking the subtropical evergreen broad-leaved forest area of Simian Mountain as the study area, this study conducted a quantitative analysis of ...
Effects of soil heterogeneity and preferential flow on the water flow ...
2024年3月20日 · In this study, the vertical soil heterogeneity focused on the variations in soil retention capacity, and the consideration of lateral preferential flow emphasized the higher hydraulic conductivity.
ABSTRACT: Three types of flow-like landslides involving granular soils are among the most destructive of all landslide phenomena: debris avalanches that develop from rapid shallow failures on...
Runout Scaling and Deposit Morphology of Rapid Mudflows
2018年7月26日 · Prediction of runout distance and deposit morphology is of great importance in hazard mitigation of geophysical flows, including viscoplastic mudflows. The major rheological parameters of mudflows, namely, yield stress and viscosity, are crucial factors in controlling the runout and deposition processes.
Earth flows - SpringerLink
Earth flows are mass movements of fine-grained soils that result from composite modes of failure and movement. Most rapid earth flows form in highly sensitive clay deposits and progress by a rapid sequence of smaller failures that spontaneously liquefy and flow out of the source area.
A rapid run-out assessment methodology for the 2024 Wayanad debris flow
2024年12月9日 · The long run-out debris flows caused by oversaturated soil systems during the aggravated monsoon period in the Western Ghats raise questions about the hill community’s future. Here, we report ...
Mechanism of flows in granular soil - 百度学术
Flows in granular soils are complicate phenomena between fluid dynamics, geotechnics, geology and geomorphology, and they include debris flows in torrents, landslides showing flow-like motion and landslide-with-basal-flow maintaining the almost intact soil structure during motion.