简述梯田的规划。 -题库考试答案搜索网

简述梯田的规划。

问答题

2022-02-21 16:17

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正确答案

1.耕作区的规划。
2.田块规划。
3.田块的平面形状，应基本顺等高线呈长条形，带状布设。
4.当坡面有浅沟等复杂地形时，田块布设必须注意大弯就势，小弯取直，不强求一律顺等高线。
5.如果田块的地形有自流灌溉条件，则应在田面纵向保留1/500~1/300的比降，以利行水。
6.田块长度规划，有条件的地方可采用300~400m一般是150~200m。
7.在耕作区和田块规划中，如有不同镇乡的插花地，必须进行协商和调整，便于施工和耕作。

试题解析

标签：水土保持学林学

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