这些将为工程上治理岩石边坡的风化与侵蚀作用提供有价值的参考。

These will be provided some valuable references to control the weathering and erosion of rock slope in engineering.

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此外，山区基岩风化与重力侵蚀也产生大量的推移质沉积物。

Weathering of rocks in the mountainous area and gravitational erosion also play important part in contributing to the bed load which easily deposits.

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川中丘陵区地表以紫色沙页岩风化形成的紫色土壤为主，基岩风化剥蚀过程与流失过程交替进行。该区垦殖率高，植被盖度低，地形破碎，土地利用结构复杂，土壤侵蚀严重。

Soil in hilly regions in the middle of Sichuan Province is mainly a type of purple soil which has been developed from the purple shale rock.

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