Slope erosion process tracing in simulated raining with rare earth elements

Volume 26 Issue 3

Mar. 2010

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Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE) > 2010 > 26(3): 87-91.

Slope erosion process tracing in simulated raining with rare earth elements[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2010, 26(3): 87-91.

Citation:

Slope erosion process tracing in simulated raining with rare earth elements[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2010, 26(3): 87-91.

Citation:

Slope erosion process tracing in simulated raining with rare earth elements[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2010, 26(3): 87-91.

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Slope erosion process tracing in simulated raining with rare earth elements

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Received Date: October 17, 2007
Revised Date: December 23, 2009
Published Date: March 30, 2010

Graphical Abstract

Abstract

Abstract

For studying the slope erosion type changing process, simulated rainfall was applied by placing rare earth elements on different soil depth across the slope. The results indicated that the main erosion type was sheet erosion in the beginning of rainfall, and serious erosion happened after rill erosion appeared. The percentage of sheet erosion to the whole erosion was about 30% and the percentage of rill erosion was about 70%. The erosion of the first layer was the biggest on unit depth, and then decreased with the depth of soil. Therefore, according to the changing trends of the sheet erosion contribute rate and the rill erosion contribute rate, the erosion on slope could be divided into three phases: main sheet erosion phase, rill erosion developing phase and rill erosion stabile phase. Therefore, REE-INAA method could accurately quantify the processes of soil erosion.
- erosion,
- soil conservation,
- rain,
- REE-INAA method,
- erosion type changing process,
- sheet erosion,
- rill erosion

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