SUN Liying, FANG Haiyan, QI Deli, LI Junlan, CAI Qiangguo. A Review on Rill Erosion Process and Its Influencing Factors[J]. Chinese Geographical Science, 2013, 23(4): 389-402. doi: 10.1007/s11769-013-0612-y
Citation: SUN Liying, FANG Haiyan, QI Deli, LI Junlan, CAI Qiangguo. A Review on Rill Erosion Process and Its Influencing Factors[J]. Chinese Geographical Science, 2013, 23(4): 389-402. doi: 10.1007/s11769-013-0612-y

A Review on Rill Erosion Process and Its Influencing Factors

doi: 10.1007/s11769-013-0612-y
Funds:  Under the auspices of National Natural Science Foundation of China (No. 40971165, 41001165), Open Foundation of State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau (No. K318009902-1315)
  • Received Date: 2012-11-02
  • Rev Recd Date: 2013-01-08
  • Publish Date: 2013-07-10
  • Rills are frequently observed on slope farmlands and rill erosion significantly contributes to sediment yields. This paper focuses on reviewing the various factors affecting rill erosion processes and the threshold conditions of rill initiation. Six factors, including rainfall, runoff, soil, topography, vegetation and tillage system, are discussed. Rill initiation and network are explored. Runoff erosivity and soil erodibility are recognized as two direct factors affecting rill erosion and other types of factors may have indirect influences on rill erosion through increasing or decreasing the effects of the direct factors. Certain conditions are necessary for rill initiation and the critical conditions are different with different factors. Future studies should be focused on 1) the dynamic changes of rill networks; 2) the combined effect of multiple factors; and 3) the relationships of threshold values with other related factors.
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A Review on Rill Erosion Process and Its Influencing Factors

doi: 10.1007/s11769-013-0612-y
Funds:  Under the auspices of National Natural Science Foundation of China (No. 40971165, 41001165), Open Foundation of State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau (No. K318009902-1315)

Abstract: Rills are frequently observed on slope farmlands and rill erosion significantly contributes to sediment yields. This paper focuses on reviewing the various factors affecting rill erosion processes and the threshold conditions of rill initiation. Six factors, including rainfall, runoff, soil, topography, vegetation and tillage system, are discussed. Rill initiation and network are explored. Runoff erosivity and soil erodibility are recognized as two direct factors affecting rill erosion and other types of factors may have indirect influences on rill erosion through increasing or decreasing the effects of the direct factors. Certain conditions are necessary for rill initiation and the critical conditions are different with different factors. Future studies should be focused on 1) the dynamic changes of rill networks; 2) the combined effect of multiple factors; and 3) the relationships of threshold values with other related factors.

SUN Liying, FANG Haiyan, QI Deli, LI Junlan, CAI Qiangguo. A Review on Rill Erosion Process and Its Influencing Factors[J]. Chinese Geographical Science, 2013, 23(4): 389-402. doi: 10.1007/s11769-013-0612-y
Citation: SUN Liying, FANG Haiyan, QI Deli, LI Junlan, CAI Qiangguo. A Review on Rill Erosion Process and Its Influencing Factors[J]. Chinese Geographical Science, 2013, 23(4): 389-402. doi: 10.1007/s11769-013-0612-y
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