Ecological isolation strip terrace and construction method thereof

Abstract

The invention discloses an ecological isolation strip terrace and a construction method thereof. The method comprises the following steps that (1) geotextile is paved at the bottom of a trimmed terrace bank; (2) reinforced soil is piled up on the geotextile; (3) the end, far away from the terrace bank, of the geotextile is upwards and inwards folded to wrap the reinforced soil; (4) reinforced soilis continued to be piled up at the upper portion of the folded end of the geotextile, and trimming is conducted to form a first layer of reinforced soil protection bank structure; (5) multiple layersof reinforced soil protection bank structures are continued to be constructed upwards until the height is higher than the height of the field surface on the upper side of the terrace bank and a ridgeis formed; (6) the field surfaces on the upper side and the lower side of the terrace bank are trimmed; and (7) multiple rectangular water grooves are dug in the positions, close to the terrace bank,of the inner side of the field surface on the lower side of the terrace bank, the rectangular water grooves are formed at intervals, and the length direction is parallel to the terrace bank. According to the terrace and the method, the geotextile is adopted to wrap the reinforced soil to form the terrace bank with a stable structure; and meanwhile, a sump is dug in the field surface of the lowerportion of the terrace bank, so that water and nutrients are well gathered, and the supply of water and nutrients to the field surfaces is ensured.

Description

technical field [0001] The invention relates to the field of ecological terraced fields, in particular to an ecological isolation belt terraced field and a construction method thereof. Background technique [0002] The dry-hot valley area in Yunnan is one of the typical ecologically fragile zones and ecosystem degraded areas in China. This area is an alpine canyon landform, which is characterized by many slopes and few flats, and the terrain is closed, the geological conditions are unstable, the soil layer is shallow, and the canyon steep slope. The area has more than 350 days of daily average temperature ≥ 10°C in a year, rich in light and heat resources, hot and rainy, serious water and soil erosion, and very fragile ecology. Unreasonable reclamation on steep slopes has further led to local vegetation degradation, increased soil erosion, decreased fertility of cultivated land, and severe landscape fragmentation. At present, building reverse-slope terraced fields in land ...

AI Technical Summary

Problems solved by technology

However, in the process of building terraces, everyone usually focuses on the planning, design and leveling of the platforms, often ignoring the ridges between the platforms, and not considering how to make better use of the water on the terraced fields and quickly fertilize them, resulting in After the completion of the terraced fields, due to the instability of the ridge and the lack of water and fertilizer in the cultivated land, the land productivity has dropped again, and the ecological landscape of the farmland has also been destroyed. Therefore, there is an urgent need for an terrace construction technology

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