Excerpt
At present, natural soil erosion processes are mainly understood to be single-agent-induced—for instance, by water, wind, gravity, or by freeze-thaw alternation—with rarely investigating the hybrid erosion forms (Fryrear et al. 2000; Sharratt et al. 2000; Gao et al. 2002; Boardman 2006). Soil erosion in a fluvialoaeolian system is only addressed at a beginning stage, which still needs more adequate explorations for further understanding related sub-processes and patterns (Harrison and Yair 1998; El Baz et al. 1999). Therefore, natural soil erosion types are outlined in a general sense as water erosion, wind erosion, freeze-thaw erosion, and gravitational erosion, with only few sprouting reports on hybrid erosion phenomena caused by fluvialoaeolian interactions.
This article reports for the first time the discovery of a hybrid soil erosion phenomenon as determined by freeze-thaw action, wind, and water alternations in a complex thaw-fluvial-aeolian system. We observed this unique hybrid erosion phenomenon through continuing onsite surveillance during 2005 to 2008 in the Songnen Plains (43° to 50° N, 122° to 128° E), northeastern China, as affected deeply by Siberian climate regime with a long and cold winter (see figure 1). With regard to the analysis of local climatic conditions, spatiotemporal processes of this unique hybrid erosion…
Footnotes
Liangjun Hu, Haijun Yang, and Deli Wang work at the Key Laboratory of Vegetation Ecology, Chinese Ministry of Education, Northeast Normal University, Changchun, China. Zongming Wang works at the Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun, China.
- © 2009 by the Soil and Water Conservation Society
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