要格外细心以确保水流不会穿越等高沟间的田埂。
Extra care must be taken to be sure that water does not cut through any of the ridges between contour furrows.
等高沟克服了这个问题，因为这些沟垂直于主坡方向布置，沟道坡度约为0.5%。
Contour furrows overcome this problem because they are placed on a gradient of about 0.5 % across the main slope.
等高绿篱措施能够明显减少浅沟坡面的土壤侵蚀，且保土效果比保水效果更加明显。
Contour hedgerows reduced the erosion on slope surface with ephemeral gullies effectively, and the effect of soil conservation was more obvious than the effect of water conservation.
等高绿篱措施能够明显减少浅沟坡面的土壤侵蚀，且保土效果比保水效果更加明显。
Contour hedgerows reduced the erosion on slope surface with ephemeral gullies effectively, and the effect of soil conservation was more obvious than the effect of water conservation.
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