冲沟是侵蚀沟中规模最大的一种,长度可达数千米或数十千米,深度可达数米或数十米,有时可达百米以上。冲沟在丘陵和山区很普遍。
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城镇内部冲沟坡地是开发和保护难度都较大的区域。
Gully and slope land in towns are relatively difficult to develop and protect.
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.
在较浅的沟道里,如果流量过大就可能使沟水漫溢,并引起连锁反应,从而产生冲沟。
The resulting overload on the lower furrow could cause it to overtop and begin a chain reaction that would likely produce a gully.
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