The formation of alluvial fans and young floodplain deposits in the Lieser catchment, Eifel Mountains, western German Uplands: A study of soil erosion budgeting

The discrimination/characterization of depositional systems recorded in formal lithostratigraphic, Cenozoic, continental, epiclastic units of Mexico, is largely a pending task, notwithstanding its great academic and economic importance. Contributing to fill this gap, we present a first approach to discriminate and characterize the depositional systems of the late Eocene Yolomécatl Formation, which fills the namesake, triangle-shaped tectonic basin, and carries the southernmost Paleogene vertebrate fauna of North America. The study area lies between 17°25’–17°30’ North Latitude and 97°29’–97°36’ West Longitude, and between 2000–2500 m a.s.l.; the federal highway 125 traverses it; Santiago Yolomécatl is the main town. The Yolomécatl Formation is at least 650 m thick, although the continuous thickness measured in the principal reference section is much less (~250 m); it includes fluvial and lake depositional systems sparsely interbedded by tuff sheets (a system per se). The fluvial system consists of 1) Gmm, Gmg, Gcm lithofacies: alluvial fans and related deposits; 2) Gm, Gh, Gp, Gt, St, Sp lithofacies: channel lag deposits; 3) Sr, Sh, Sl, Fl lithofacies: floodplain deposits. The (clastic) lacustrine system includes: 1) Ll, Lsm, Lm lithofacies: offshore deposits; 2) Ll, Lsm lithofacies: playa lake and mud flats deposits. This large thickness of this unit indicates superposition of fluvial/lacustrine systems, and sparse pyroclastic emplacements that took place in a basin gradually subsiding with sedimentation, under humid to subhumid conditions, probably interrupted by seasonal dryness. Finally, the tectonic setting of the Yolomécatl Basin, indicates that its genesis and development are related to the dynamics of the regional, left-lateral strike-slip Tamazulapam fault, which is also regarded as the boundary between the Mixteca (west) and Oaxaca (east) terranes.

Download Full-text

Soil erosion: Pulp fixation

Nature China ◽

10.1038/nchina.2008.89 ◽

2008 ◽

Author(s):

Tim Reid

Keyword(s):

Soil Erosion

Download Full-text

Interplay between land use changes and soil erosion in a small mountainous catchment in southern Italy

Rendiconti online della Società Geologica Italiana ◽

10.3301/rol.2016.08 ◽

2016 ◽

Vol 38 ◽

pp. 25-28 ◽

Cited By ~ 1

Author(s):

Massimo Conforti ◽

Gabriele Buttafuoco

Keyword(s):

Land Use ◽

Soil Erosion ◽

Southern Italy ◽

Land Use Changes ◽

Mountainous Catchment

Download Full-text

ASSESSMENT OF SOIL EROSION IN VINH LINH, QUANG TRI USING RMMF MODEL (REVISED MORGAN - MORGAN - FINNEY)

HUE UNIVERSITY JOURNAL OF SCIENCE AGRICULTURE AND RURAL DEVELOPMENT ◽

10.26459/jard.v83i5.3083 ◽

2013 ◽

Vol 83 (5) ◽

Author(s):

Nguyễn Quang Việt ◽

Trương Đình Trọng ◽

Hồ Thị Nga

Keyword(s):

Soil Erosion ◽

Land Cover ◽

Soil Loss ◽

Soil Particle ◽

Transport Capacity ◽

Gis Technology ◽

Particle Detachment ◽

Sediment Transport Capacity ◽

Northern District ◽

Runoff And Soil Loss

Vinh Linh, the northern district of Quang Tri province is characterized by a diversified topography with a large variety of elevations, high rainfall, and decreasing land cover due to forest exploiting for cultivation land. Thus, there is a high risk of erosion, soil fertility washout. With the support of GIS technology, the authors used the rMMF model to measure soil erosion. The input data of model including 15 coefficients related to topography, soil properties, climate and land cover. The simulations of rMMF include estimates of rainfall energy, runoff, soil particle detachment by raindrop, soil particle detachment by runoff, sediment transport capacity of runoff and soil loss. The result showed that amount of soil loss in year is estimated to vary between 0 kg/m2 minimum and 149 kg/m2 maximum and is divided into 4-classes of erosion. Light class almost covers the region researched (75.9% of total area), while moderate class occupies 8.1% of total area, strong classes only hold small area (16% of total area). Therefore, protection of the forest floor in sloping areas is one of the most effective methods to reduce soil erosion.

Download Full-text

COMPREHENSIVE APPROACH OF THE DECISION EXISTING PROBLEMS OF PROTECTION AND STABILIZATION OF WATER AND SOIL RESOURCES IN AZERBAIJAN

Natural resources of the Earth and environmental protection ◽

10.26787/nydha-2713-203x-2020-1-7-8-9-7-10 ◽

2020 ◽

pp. 7-10

Author(s):

Aliyev Z.H.

Keyword(s):

Soil Erosion ◽

Laws Of Nature ◽

Human Mind ◽

Comprehensive Approach ◽

Soil Resources ◽

Existing Problems ◽

Development Methods

The article considers the issues of solving the problems of the development of the erosive danger of soil in Azerbaijan, which is why it should be understood that the human mind is unable to change the force of nature, but can only learn and correctly use the laws of nature, use the acting natural force and improve the ways of controlling them. At the same time, in the process of development, methods are struggling with soil erosion in the first stage, which is necessary for studying the causes of occurrence and patterns in its development

Download Full-text

Assessment of changes in extreme precipitation affecting the degree of soil erosion in crop rotation

сборник статей всероссийской научной конференции с международным участием "Растениеводство и луговодство" ◽

10.26897/978-5-9675-1762-4-2020-162 ◽

2020 ◽

Author(s):

V.V. Ilinich ◽

◽

A.A. Naumova

Keyword(s):

Soil Erosion ◽

Crop Rotation ◽

Extreme Precipitation ◽

Crop Rotations

the presented research is dedicate to confirming the hypothesis about increase in extreme precipitation of recent decades, affecting the degree of soil erosion in crop rotations.

Download Full-text