Reverse slope terrace

Abstract

The invention discloses a reverse slope terrace, and relates to the technical field of irrigation and water conservancy engineering. The reverse slope terrace comprises a plurality of terrace structures which are sequentially arranged in the direction perpendicular to a contour line; each terrace structure comprises a terrace surface, ridges and a terrace ditch; the ridges and the terrace ditches are arranged at intervals in the contour line direction; the ridges and the terrace ditches are located on the two opposite sides of the terrace surfaces respectively; the ridges are used for planting slope protection plants; the terrace surfaces are used for planting crops; first included angles are preset between the terrace surfaces and the horizontal plane; the sides, close to the ridges, of the terrace surfaces are higher than the sides, close to the terrace ditches, of the terrace surfaces; each terrace structure further comprises a plurality of soil retainers arranged perpendicular to the the contour line direction in intervals; and the terrace surfaces, the ridges, the terrace ditches and the two adjacent soil retainers are jointly enclosed to form a retaining unit for retaining water flow. The reverse slope terrace can solve the problem that in the prior art, when the reverse slope terraces are built in hilly and mountainous areas, soil and nutrients are prone to losing.

Description

technical field [0001] The invention relates to the technical field of farmland water conservancy engineering, in particular to a reverse slope terraced field. Background technique [0002] Terraced fields are an important soil and water conservation measure common in my country. By transforming sloping farmland into terraced fields, it not only reduces soil erosion, but also helps to increase crop production, increase farmers' income, and ease the conflict between man and land. Among them, dry terraced fields are one of the main technologies for soil and water conservation in hilly areas. [0003] At present, when building reverse-slope terraced fields in hilly areas, field ditches are dug on the inner side of the field surface. Although it is convenient for drainage, it is not conducive to preventing the loss of soil and nutrients. Contents of the invention [0004] The object of the present invention is to provide a reverse slope terraced field, which can solve the pro...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of reverse slope terraced field, which can solve the problem of easy loss of soil and nutrients in hilly mountainous areas in the prior art when building reverse slope terraced fields

The reverse-slope terraces can solve the problem of easy loss of soil and nutrients in hilly areas in the prior art when building reverse-slope terraces

Images