Three gorge reservoir region slope cropland bank building method and slope cropland bank

Abstract

The invention discloses a three gorge reservoir region slope cropland bank building method and a slope cropland bank. The slop cropland bank is formed by an upper layer and a lower layer. The lower layer is a hard material layer and the upper layer is a soil layer. The hard material layer is formed by piling up strip rock (or rock blocks and hollow bricks) and natural seams are formed; and short shrub and herbaceous economic plants are planted at two sides of the top of the soil layer and the middle portion is used as a walking path. Rough treatment is conducted on an upper surface of the hard material layer in touch with the soil layer, a plurality of grooves are formed at intervals in the upper surface and the soil layer is embedded in the grooves partly. A plurality of water drainage holes are formed in a wall face of the hard material layer along different height. According to the three gorge reservoir region slope cropland bank building method and the slope cropland bank, investment is small, construction is simple, repair is easy and the conditions that a single soil bank is unstable, a single rock bank is high in cost and the like can be obviously improved. The plants planted on the soil layer is beneficial for fixing soil and improving fertility, the plants are combined with the bank so that double adjusting functions are achieved, water and soil loss control effect is notable and meanwhile economic benefit is generated.

Description

technical field [0001] The invention relates to the improvement of agricultural farmland ridge technology, in particular to a method for constructing slope farmland ridges in the Three Gorges reservoir area and soil-rock combined slope farmland ridges, belonging to the technical field of slope farmland ridges. Background technique [0002] The arable land resources in the Three Gorges reservoir area are very limited. The per capita arable land area of ​​rural residents is 0.88 mu, and most of them are sloping arable land. Accelerated social and economic development has caused a large increase in the arable land occupied by non-agricultural construction, resulting in more acute conflicts between people and land. Land ridges and field ridges (collectively referred to as ridges) are the boundaries of plots, accounting for about 6% to 12% of the cultivated land area, and have multiple functions such as water and soil conservation and walking. "Slope to ladder" is an important wa...

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Problems solved by technology

[0004] Aiming at the deficiencies of the existing Three Gorges Reservoir Area's arable land and stone ridges occupying a large amount of land, low land utilization rate, unstable ridges, and easy damage, the purpose of the present invention is to provide a relatively stable ridge ridge that improves the utilization rate of the ridge and has better soil and water quality. The soil-rock combination ridge construction method and ridge ridge of sloping farmland specially used in the Three Gorges Reservoir area to maintain the effect and be acceptable to farmers

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