A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to the technical field of soil and water conservation in farmland, in particular to a long sloping farmland wide-surface terraced field for ridge culture and a construction method thereof. The long sloping farmland wide-surface terraced field includes water retaining ridges, catchment channels and at least one slope section unit; and the water retaining ridges are arranged onthe edge sides of the slope section units along the length direction of the slope section units, the catchment channels are arranged on the end sides of the slope section units along the width direction of the slope section units, and the end surfaces of the soil surfaces of the water retaining ridges are higher than the height of the soil surfaces at connection points between the slope section units and the water retaining ridges. The multiple slope section units are arranged to shorten the slope length, the erosion dynamics is reduced, and the functions of water management and corrosion reduction are realized; the water retaining ridges are arranged, convex slope sections shaped like wave crests are used for intercepting the confluence slope length to intercept the surface upslope waterand sand, concave slope sections shaped like wave troughs promote runoff infiltration, and sediment deposition is increased; and the catchment channels are arranged to collect and drain rainwater intime, the erosion of rainwater on the wide-surface terraced field is reduced, and the water and soil erosion is reduced.
本发明涉及农田水土保持技术领域，尤其涉及一种垄作长缓坡耕地宽面梯田及其修筑方法。垄作长缓坡耕地宽面梯田，包括挡水埂、汇水沟道和至少一个坡段单元，所述挡水埂沿所述坡段单元的长度方向设置在所述坡段单元的边侧，所述汇水沟道沿所述坡段单元的宽度方向设置在所述坡段单元的端侧，所述挡水埂的土表端面高于所述坡段单元与所述挡水埂连接处的土表面的高度。通过设置多个坡段单元截短坡长，降低侵蚀动力，实现理水减蚀作用；设置挡水埂，利用形似波峰的上凸坡段截断汇流坡长拦截地表上坡水沙，形似波谷的下凹坡段促进径流入渗，增加泥沙沉积；设置汇水沟道，及时将雨水汇集并排除，减少雨水对宽面梯田的冲刷，降低水土流失。
The invention relates to the technical field of soil and water conservation in farmland, in particular to a long sloping farmland wide-surface terraced field for ridge culture and a construction method thereof. The long sloping farmland wide-surface terraced field includes water retaining ridges, catchment channels and at least one slope section unit; and the water retaining ridges are arranged onthe edge sides of the slope section units along the length direction of the slope section units, the catchment channels are arranged on the end sides of the slope section units along the width direction of the slope section units, and the end surfaces of the soil surfaces of the water retaining ridges are higher than the height of the soil surfaces at connection points between the slope section units and the water retaining ridges. The multiple slope section units are arranged to shorten the slope length, the erosion dynamics is reduced, and the functions of water management and corrosion reduction are realized; the water retaining ridges are arranged, convex slope sections shaped like wave crests are used for intercepting the confluence slope length to intercept the surface upslope waterand sand, concave slope sections shaped like wave troughs promote runoff infiltration, and sediment deposition is increased; and the catchment channels are arranged to collect and drain rainwater intime, the erosion of rainwater on the wide-surface terraced field is reduced, and the water and soil erosion is reduced.
本发明涉及农田水土保持技术领域，尤其涉及一种垄作长缓坡耕地宽面梯田及其修筑方法。垄作长缓坡耕地宽面梯田，包括挡水埂、汇水沟道和至少一个坡段单元，所述挡水埂沿所述坡段单元的长度方向设置在所述坡段单元的边侧，所述汇水沟道沿所述坡段单元的宽度方向设置在所述坡段单元的端侧，所述挡水埂的土表端面高于所述坡段单元与所述挡水埂连接处的土表面的高度。通过设置多个坡段单元截短坡长，降低侵蚀动力，实现理水减蚀作用；设置挡水埂，利用形似波峰的上凸坡段截断汇流坡长拦截地表上坡水沙，形似波谷的下凹坡段促进径流入渗，增加泥沙沉积；设置汇水沟道，及时将雨水汇集并排除，减少雨水对宽面梯田的冲刷，降低水土流失。
Long sloping farmland wide-surface terraced field for ridge culture and construction method thereof
垄作长缓坡耕地宽面梯田及其修筑方法
2020-05-15
Patent
Electronic Resource
Chinese
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