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修建梯田能控制土壤冲刷一这仅仅是是控制冲刷的开端.好的梯田如何保护好耕地,这要取决于耕作方法.美国的农场修建了许多梯田,这些梯田是很必要的.第一批梯田中有一些梯田修成脊埂和渠道的形状,这些脊埂和渠道对于高效的农业耕作显得太窄了.梯田修成宽脊埂和宽渠道型对农业耕作既方便又经济.梯田可修成平行式的或不平行的两种,尤其当谷物成行种植时,平行式梯田就更方便于耕作.
The construction of terraces to control soil erosion is just the beginning of erosion control. How good terraces protect the arable land depends on farming methods. Many terraces are built on American farms and these terraces are necessary. Some of the terraces have been shaped into ridges and channels that appear to be too narrow for efficient agricultural practices. Terraced fields with wide ridges and wide channels are both convenient and economical for agricultural farming. Terraces can be converted into parallel Or not parallel, especially when planting cereals in rows, parallel terraces make farming more convenient.