Determination of soil erosion index for surface soils of landfill covers

2019 ◽  
Vol 6 (6) ◽  
pp. 373-380 ◽  
Author(s):  
Yamsani Sudheer Kumar ◽  
Sunil Kumar ◽  
Sreedeep Sekharan ◽  
Rakesh Ravi Ranjan
Keyword(s):  
Soil Erosion ◽  
Surface Soils ◽  
Erosion Index ◽  
Landfill Covers

Prediction of Soil Erosion Loss Mass in the Coal Mining Areas of Jilin Province Based on 3S Technology and BP Neural Network

2011 ◽  
Vol 225-226 ◽  
pp. 1246-1249
Author(s):  
Jie Tang ◽  
Yao Ji
Keyword(s):  
Neural Network ◽  
Soil Erosion ◽  
Coal Mining ◽  
Bp Neural Network ◽  
Jilin Province ◽  
Mining Areas ◽  
3S Technology ◽  
Erosion Index ◽  
Erosion Loss ◽  
Rainfall Erosion

This paper partitioned five major coal mining areas respectively in central, southern and eastern Jilin Province for case study based on current situation of exploitation and distribution of coal resources through artificial neural network(ANN) and the 3S technology to gain soil erosion loss mass. On the basis of RUSLE equation, BP neural network is fused to gain the rainfall erosion index of higher precision than those of traditional method. By extracting of indices and raster calculation on the platform of ERDAS and ArcGIS software, we made predication of soil erosion loss of the coal mining areas. After verification, the precision of rainfall erosion index is high, and thus improved the predicting accuracy of soil erosion. Comparative analysis shows that the soil erosion in central section of Jilin Province has much lower intensity, and high degree erosion occurred in the east and south mostly.

scholarly journals Soil Erosion as A Function of Natural And Anthropogenic Factors and Its Environmental Consequences.

2018 ◽  
Vol 5 ◽  
pp. 395-401
Author(s):  
Prof.RAE. Z.H. Aliyev
Keyword(s):  
Soil Erosion ◽  
Anthropogenic Factors ◽  
Potential Danger ◽  
Environmental Consequences ◽  
Environmental Situation ◽  
The Republic ◽  
Natural And Anthropogenic Factors

The article examines the issues of the possibility of studying erosion and its control. The study proved that the development of soil erosion is based on the forming impact of natural and anthropogenic factors. The degree of potential danger and the possibility of prevention, taking into account the preservation of the environmental situation in the foothills of the Upper Shirvan in the example of the Shamakhi district of the Republic of Azerbaijan, were studied. The main tasks of the study were the determination of the amount and the degree of development of eroded and erosion-prone soils of the foothill zones, carried out on the basis of soil.

Quantitative determination of red-soil erosion by an Eu tracer method

2008 ◽  
Vol 101 (1-2) ◽  
pp. 52-56 ◽  
Author(s):  
W YANG ◽  
Z WANG ◽  
G SUI ◽  
G DING
Keyword(s):  
Soil Erosion ◽  
Quantitative Determination ◽  
Red Soil ◽  
Tracer Method

Pressure conditions in the hole erosion test

2015 ◽  
Vol 52 (1) ◽  
pp. 114-119 ◽  
Author(s):  
Jaromír Říha ◽  
Jan Jandora
Keyword(s):  
Shear Stress ◽  
Soil Erosion ◽  
Numerical Study ◽  
Critical Shear Stress ◽  
Technical Note ◽  
Hydraulic Gradient ◽  
Hydraulic Gradients ◽  
Erosion Test ◽  
The Difference

The hole erosion test (HET) is used in the study of soil erosion in the case of what is known as “piping” when concentrated leaks occur. The HET enables the determination of soil erosion characteristics such as the critical shear stress along the pre-formed hole (pipe) and the coefficient of soil erosion. Normally, in the HET, the hydraulic gradient is determined from the difference between the piezometric heads measured at the inflow and outflow chambers (upstream and downstream of the soil specimen). Hydraulic analysis shows that such measurements ignore losses at the entrance and exit of the hole, causing the overestimation of the hydraulic gradient along the length of the hole, and thus the calculated shear stress. In this technical note, the results of preliminary analysis using the Bernoulli principle and of numerical study of the pressure conditions in the HET apparatus are shown. The turbulent flow in the HET apparatus was calculated using ANSYS commercial CFD (computational fluid dynamics) software. The analysis was performed for various hole entrance shapes. The conclusion of this note details the differences between traditionally determined hydraulic gradients and those numerically derived along the length of a hole.

Research on Methods of Ascertaining Characteristic Parameter for Small Watershed Soil Erosion

2011 ◽  
Vol 391-392 ◽  
pp. 1315-1318
Author(s):  
Li Jiang ◽  
Di Zhang
Keyword(s):  
Water Quality ◽  
Soil Erosion ◽  
Watershed Management ◽  
Yellow River ◽  
Characteristic Parameter ◽  
Land Productivity ◽  
Small Watershed ◽  
Planning And Design ◽  
Lakes And Reservoirs

Soil erosion always leads to decreasing of land productivity, deposition of channels, lakes and reservoirs, pollution of water quality and so on. In the small watershed management, the soil erosion amount should be definite. The erosion modulus is able to quantitatively characterize the average extent of soil erosion. In practice, it is difficult to ascertain the erosion modulus. Several methods to ascertain erosion modulus are introduced in this article. Taken some small watershed of Yellow River in West Henan region as an example, these methods are testified to be feasible in ascertaining the erosion modulus. In the construction of small watershed dam system projects and planning and design of hydro junctions, methods and thoughts can be provided for the determination of the erosion modulus.

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