Preliminary Research on Valleys and Gullies Development Process and Quantity of Soil Erosion Changes in Luochuan Loess Plateau Region since Late Middle-Pleistocene

SANG Guang-shu~1

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Preliminary Research on Valleys and Gullies Development Process and Quantity of Soil Erosion Changes in Luochuan Loess Plateau Region since Late Middle-Pleistocene

更新时间：2024-11-07

- Preliminary Research on Valleys and Gullies Development Process and Quantity of Soil Erosion Changes in Luochuan Loess Plateau Region since Late Middle-Pleistocene
- Vol. 19, Issue 1, Pages: 109-113(2005)
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  CLC： S157P532
- Published：2005
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SANG Guang-shu~1. Preliminary Research on Valleys and Gullies Development Process and Quantity of Soil Erosion Changes in Luochuan Loess Plateau Region since Late Middle-Pleistocene[J]. 2005, 19(1): 109-113.
DOI：

SANG Guang-shu~1. Preliminary Research on Valleys and Gullies Development Process and Quantity of Soil Erosion Changes in Luochuan Loess Plateau Region since Late Middle-Pleistocene[J]. 2005, 19(1): 109-113. DOI：

摘要

洛川塬区土壤侵蚀变化表现出不同的侵蚀期

土壤侵蚀过程就是沟谷的发育过程。通过分析洛川塬区晚中更新世以来洛河阶地和沟谷黄土、古土壤记录的古地貌形态得出

560～460kaB.P.的第一侵蚀期洛河一级支流开始广泛形成;洛河较大的二级支流形成于250～200kaB.P.的第二侵蚀期;140～95kaB.P.的第三侵蚀期洛河形成了三级支流;洛川塬区众多的冲沟主要是全新世(10～0kaB.P.)以来形成的。分析了洛川塬区不同侵蚀期形成的沟谷地貌形态。以黑木沟为例

具体分析了黑木沟的发育过程和土壤侵蚀量变化。

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Preliminary Research on Valleys and Gullies Development Process and Quantity of Soil Erosion Changes in Luochuan Loess Plateau Region since Late Middle-Pleistocene

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