A water harvesting irrigation system and construction method for ditch and slope land in loess plateau area

Abstract

The invention relates to a method of land consolidation, in particular to a water collection irrigation system for gullies and slopes in the loess platform area; it solves the problem of soil erosion caused by rainfall in summer and autumn in the ditch and slopes of the loess platform area, which easily causes field sills to collapse, and winter and spring Unable to meet irrigation water demand, leading to technical problems that reduce land productivity. The technical solution of the present invention is: a water collection and irrigation system for ditch slopes in the loess plateau area, which is special in that it includes a terraced field water collection unit and a drainage and irrigation system; the terraced field water collection unit includes a plurality of fields arranged in a ladder shape The field block includes the field ridge and the field surface; the field ridge is set on the side of the field surface away from the upper-level field block; the middle part of the field ridge is provided with a drainage ditch, and the drainage ditch divides the field ridge into an inner field ridge and an outer field ridge; The seepage hole of the drainage ditch; the side of the field surface close to the field ridge is lower than the side away from the field ridge; at the same time, the invention also provides a construction method of a water collection and irrigation system for ditch slopes in the loess plateau area.

Description

technical field [0001] The invention relates to a land improvement method, in particular to a water collection irrigation system for gully slopes in the loess plateau area and a construction method thereof. Background technique [0002] The loess platform is a loess platform that is covered by loess on the platform of the valley terrace and distributed in strips along the valley. The platform generally slopes towards the valley. Slope land is the main type of cultivated land in the loess plateau area. Land consolidation is an important measure to stabilize the area of ​​cultivated land, improve the quality of cultivated land, increase food production, and alleviate the conflict between man and land. The spatial distribution of precipitation in the loess plateau area is uneven. There is less rain in winter and spring, more rain in summer and autumn, and more torrential rains in summer and autumn, which leads to frequent soil erosion in summer and autumn. However, crops often...

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Problems solved by technology

[0003] In order to solve the technical problem that the slope land in the loess plateau area is caused by rainfall in summer and autumn, which can easily cause field sills to collapse, and the demand for irrigation water sources cannot be met in winter and spring, resulting in a decline in land productivity, the invention provides a kind of ditch slope land in the loess plateau area Water harvesting irrigation system and construction method thereof

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