Soil erosion is a major environmental problem of global concern. In the Loess Plateau region China, loess slopes one modes soil erosion, causing serious erosional problems. Most current studies slope use qualitative analyses from field investigations, while quantitative experimental physical simulations are relatively rare. This paper takes which most typical mode as starting point and investig...

Concentrations of cosmogenic Al and Be in cave sediments and bedrock surfaces, combined with studies of landscape morphology, elucidate the topographic history of the southern Sierra Nevada over the past 5 Ma. Caves dated by Al/Be in buried sediments reveal that river incision rates were moderate to slow between c. 5 and 3 Ma (≤0·07 mm a), accelerated between 3 and 1·5 Ma (c. 0·3 mm a−), and th...

the wepp physically model is able to dynamically simulate runoff and soil erosion using physical concepts of erosion and hydraulic of overland flow science considering plant growth, residue decomposition, winter process. determination of the capability of this model in runoff and erosion estimation in different range type with investigation the effects of management were the main objectives of ...

Quantifying erosion rates and processes remains a central focus of studying the Earth’s surface. Measurement of in situ–produced cosmogenic radionuclides (CRNs) enables a level of quantifi cation that would otherwise be impossible or fraught with uncertainty and expense. Remarkable success stories punctuate the fi eld over the last decade as CRN-based methodologies are pushed to new limits. Inh...

We explore the role of large impacts in creating the Martian valley networks. Recent dating shows that some large impact basins are contemporaneous with the valley networks. The mass deposited (and volatiles released) by impacts is large, and comparable with the mass from the Tharsis volcanic construct. Steam atmospheres formed after large impacts can produce more than 600 m of rainfall, follow...