scholarly journals Model of rainfall erosion index for predicting the potential erosion rate by using a rainfall simulator

Author(s):  
Erni Yulianti ◽  
Lily Montarcih Limantara ◽  
Ery Suhartanto ◽  
Very Dermawan
2011 ◽  
Vol 225-226 ◽  
pp. 1246-1249
Author(s):  
Jie Tang ◽  
Yao Ji

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.


1975 ◽  
Vol 101 (3) ◽  
pp. 242-244
Author(s):  
Kenneth G. Renard ◽  
J. Roger Simanton

1974 ◽  
Vol 100 (3) ◽  
pp. 293-307
Author(s):  
John K.H. Ateshian

1990 ◽  
Vol 33 (2) ◽  
pp. 0487-0492
Author(s):  
M. A. Breve ◽  
R. L. Bengtson ◽  
K. K. Hirschboeck ◽  
J. L. Fouss

2018 ◽  
Vol 61 (4) ◽  
pp. 1323-1333
Author(s):  
Isaac A. Jeldes ◽  
Daniel C. Yoder ◽  
Eric C. Drumm

Abstract. While manmade slopes are traditionally constructed with planar cross-sections, natural stable slopes are usually curvilinear with significant concavity of the profile. This concavity occurs as a result of evolutionary processes in which rain-driven erosion and sediment transport are balanced through slope shape adjustments. At the point of equilibrium, a relatively steady concavity with a uniform erosion rate is observed over time. Nevertheless, a true equilibrium state is possible only if mechanical stability is satisfied. In this study, concave profiles in rainfall erosion equilibrium were found based on the principles of the well-known RUSLE2 model. Results showed the existence of a family of steady shapes satisfying the condition of uniform normalized erosion rate. Those steady concave shapes that also satisfied long-term mechanical stability were then investigated. The overall results suggest that concave slopes can be constructed to achieve both minimal steady-state erosion equilibrium and mechanical stability, leading to more natural and sustainable landforms with minimal sediment delivery during initial slope adjustments. Keywords: Concave slopes, Erosion, Sustainable design, Slope stability.


1990 ◽  
Vol 70 (2) ◽  
pp. 137-148 ◽  
Author(s):  
T. L. CHOW ◽  
H. CORMIER ◽  
J. L. DAIGLE ◽  
I. GHANEM

Using runoff-erosion plots (10 m wide × 30 m long), the effects of cropping practices on surface runoff and soil loss were examined on a Hommesville gravelly loam soil to evaluate the applicability of the Universal Soil Loss Equation in New Brunswick. The amount of water runoff and soil loss from continuous fallow, up-and-down slope planting of potatoes (Solanum tuberosum), and clover (Trifolium pratense) on 8 and 11% slopes were measured from 1983 to 1985. In addition, runoff and soil loss from contour planting of potatoes were measured on the 11% slope. Slope planting of potatoes resulted in higher runoff and soil loss than on fallow plots. There was considerable reduction in runoff and soil loss when potatoes were planted along the contour. Runoff and soil loss under clover were negligible. Rainfall erosion index (R) and slope length and steepness (LS) correlated well with the measured soil losses. However, both the measured soil credibility factor (K) and the cover and management factor (C) deviated markedly from the current values used for conservation planning. Key words: Universal Soil Loss Equation, rainfall erosion index, topographic factor, soil erodibility factor, cover and management factor, support practice factor


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