and agricultural sustainability, Proceedings of the National Academy of Sciences of the United States of America 104(33): 13268-13272.
The soil erosion
estimation models are focused on the identification and quantification of the erosion processes and the controlling factors, resulting in the sequential erosion models development beginning with the universal erosion equation (USLE) realized by Wischmeier and Smith , followed by a modified equation (MUSLE) for the quantification of the alluvium resulting from erosion following each rainfall realized by Williams , and eventually computerized and more complex equation (RUSLE) developed by Renard et al.
Numerous studies have documented soil erosion
on roadcut and fill embankments (Arnaez et al., 2004; Jordan and Martinez-Zavala, 2008; Megahan et al., 2001; Xu et al., 2009).
There was significant opposition to this proposal.; the Department of Interior did not want to lose control over the soil erosion
program (even though funding for the program was slated to end in another year), and many congressional leaders did not want to create yet another government program that would cost money.
in irrigated furrow is practically a function of many variables, among which only stream sizes, furrow length, and width were studied, and it is often not possible to monitor the influence of every land-use practice under all weather and soil conditions.
, which has been occurring throughout the history of agriculture, is intensified in the recent years because of human activities, deforestation, and over- exploitation for fuel wood, overgrazing, agricultural activities and industrialization.
The application of RS and GIS techniques makes soil erosion
estimation and its spatial distribution to be determined at reasonable costs and better accuracy in larger areas [33,53].
The WEPP model simulates many of the physical processes important in soil erosion
, including infiltration, runoff, raindrop and overland-flow detachment of soil particles, sediment transport, deposition, plant growth, and residue decomposition.
As a result, the soil erosion
program has become a revenue source for the environmental health division.
In an interview, Abad said that based on what he saw, what happened was a form of 'soil erosion
.' 'The sea eroded the earth' was how he described it.
Ecotourism is part of the solution to save it.Project aim: Save the tradition of making pulque, a drink made from the sap of the agave, reclaim eroded soil and prevent future soil erosion
in the Mexican state of Oaxaca.
Keywords: Soil erosion
, land degradation, RUSLE, GIS and Remote Sensing.