切沟侵蚀由浅沟发育而成，在径流或集流冲刷下，沟床切入母质层和风化物底层，形成具有沟头、沟缘、沟壁、沟底和沟口的沟谷。
切沟侵蚀不仅破坏土地资源，而且影响下游地区环境。
Gully erosion damages land resources and causes site off environmental problems.
自上到下侵蚀主要表现为片蚀、重力侵蚀、细沟侵蚀、切沟侵蚀、冲沟侵蚀、沉积。
From above to below, the erosion types ordinally are sheet erosion, gravitational erosion, rill erosion, gully erosion, sediment.
切沟侵蚀在土壤侵蚀中占据重要位置，切沟侵蚀监测研究是切沟侵蚀研究的重要方面。
Gully erosion holds an important position in soil erosion, and monitoring the gully erosion is the majorpart of the study of gully erosion.
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