CN203113356U

CN203113356U - Cultivated land ridge structure

Info

Publication number: CN203113356U
Application number: CN 201320073445
Authority: CN
Inventors: 韦杰; 陈国建; 金慧芳; 侯林; 董宏伟
Original assignee: Chongqing Normal University
Current assignee: Chongqing Normal University
Priority date: 2013-02-16
Filing date: 2013-02-16
Publication date: 2013-08-07
Anticipated expiration: 2023-02-16

Abstract

The utility model discloses a cultivated land ridge structure. The cultivated land ridge structure is composed of an upper layer and a lower layer, wherein 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 stripped stones (or block stones or hollow bricks), and natural gaps are formed in the hard material layer. Short shrub and grass economic plants are planted on two sides of the top of the soil layer, and the middle of the soil layer is used as a walking path. The upper surface, making contact with the soil layer, of the hard material layer is roughened, a plurality of grooves are formed in the hard material layer at intervals in a digging mode, and a part of the soil layer is embedded into the grooves. A plurality of drain holes are formed in the wall surface of the hard material layer along different heights. The cultivated land ridge structure is small in engineering amount and investment, simple to construct, easy to repair, and capable of overcoming the shortcomings that a single soil ridge is unstable and a single stone ridge is high in cost. A plant fence is planted on the soil layer so that soil fixation and fertility improvement can be benefited, and the soil layer is combined with a ridge so that double regulation functions can be achieved. The cultivated land ridge structure has obvious effect of controlling water loss and soil erosion, and can generate certain economic benefit.

Description

The ridge, a kind of arable land bank structure

Technical field

The utility model relates to the improvement of the ridge, agriculture arable land bank technology, is specifically related to a kind of ridge, arable land, slope bank structure of native stone combination, is particularly suitable for the slope, reservoir area of Three Gorges and ploughs, and belongs to the ridge, arable land bank technical field.

Background technology

The reservoir area of Three Gorges cultivated land resource is very limited, 0.88 mu of rural per-capita cultivated area, and major part is to plough in the slope, and social economy's accelerated development causes that the non-agricultural construction increment that occupies cultivated land is big, causes people ground contradiction more sharp-pointed.Field bund and the raised path through fields (being referred to as ridge bank) are the lines of demarcation in plot, account for 6%～12% of cultivated area, have multi-functionals such as water and soil conservation, walking." transforming slope into terrace " is the important channel of the arable land regulation of slope, reservoir area of Three Gorges and upgrading low-and medium-yield farmland, usually adopt stone matter ridge bank in the implementation process, but it is many that stone dam build cost height, mechanical one-shift or labour drop into, and under existing social and economic condition, should not all build stone matter ridge bank.Simultaneously, a large amount of stone matter ridge bank takes up an area of many, though convenient walking, stone matter ridge bank can't be cultivated and can not be produced economic benefit, is difficult for accepting single pure stone dam the reservoir area of Three Gorges of arable land growing tension peasant.In addition, stone dam relatively suits to build in the abundant area of building stones, is difficult to promote and lack the area at building stones, has certain limitation.

In view of above problem, in regulation or comprehensive management by water and soil process are ploughed in reservoir area of Three Gorges slope, adopted soil property ridge bank to substitute (part) stone dam, measure such as adopted that also earth steps or earth steps and stone dam are arranged at interval.Field investigation shows that soil property ridge bank relatively is suitable at earth steps planted on two sides field bund plant hedge, also improving its utilization ratio in the less arable land, slope of the gradient.But the problem of soil property ridge bank maximum is to have unstability, and the reservoir area of Three Gorges rainfall is many, and the arable land gradient is big, and single earth steps wash away destroyedly because of surface flow easily, cause serious soil erosion.Therefore, need seek problems such as new ridge bank construction method is not high, unstable with the solution ridge, arable land bank utilization rate, cost height.

Summary of the invention

At existing arable land stone dam take up an area of many, land utilization ratio is not high and earth steps are unstable, deficiency such as easily damaged, the purpose of this utility model be to provide a kind of improve ridge bank utilization rate, relatively firm, have better soil and water conservation effect and the receptible native stone in arable land, slope, reservoir area of Three Gorges that is specially adapted to of peasant in conjunction with ridge bank structure.

The technical solution of the utility model is achieved in that

The ridge, a kind of arable land bank structure, it is made of two-layer up and down, and lower floor is the hard bed of material, and the upper strata is the soil property layer, and the hard bed of material is piled up by the rectangular slab of stone (or piece stone, hollow brick) and is formed and form the nature slit; The soil property layer thickness is 20～30cm, and soil property layer top planted on two sides plant is middle as the walking road.

The upper surface that the described hard bed of material contacts with the soil property layer carries out that roughening is handled and spaced apartly is carved with some grooves, and depth of groove is 3～6cm, and the soil property layer segment embeds in the groove.

Further, described hard bed of material wall is laid with the drain hole that some inside and outside walls connect along differing heights, and the drain hole section gross area is the 1/30-1/40 of whole wall area, to strengthen the drainability in rainy season, avoids the heavy showers runoff that the hard bed of material is produced damage.

The utility model soil stone for ridge bank in the past, can significantly improve disadvantages such as single earth steps instability, single stone dam cost height in conjunction with ridge bank.Soil property layer end face zone line is used for walking, the short draft economic plants of soil property layer planted on two sides.Increased working area and ridge bank utilization rate undoubtedly, what the single stone dam of having avoided in the past adopting caused can not plant the defective high with the land seizure rate.Soil property layer plantation plant hedge also helps solid earth culture fertilizer, combines with field bund and plays the dual regulation effect, has tangible soil erosion control effect, also produces certain economic benefits simultaneously.

Native country stone is little in conjunction with ridge bank construction engineering quantity, small investment (with single stone dam ratio, can save 1/3 above construction investment), gather materials on the spot, job practices is simple, repairs easily, and the economic plants hedge at the hard bed of material, soil property layer and its top combines and forms the ridge bank bioid system of system support.

Description of drawings

Fig. 1-the utility model structural representation.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Referring to Fig. 1, from the figure as can be seen, the utility model is built a kind of levels structure ridge bank of native stone combination in original sill position of ploughing, bank bottom, the ridge is that the rectangular slab of stone (or piece stone, hollow brick) is piled up the hard bed of material 2 that forms, avoid using concrete when piling up as far as possible, in order to avoid cause " pollution of stone matter ", hard bed of material cross section is trapezoidal shape, its the height and up and down bottom width decide with plot landform and the discrepancy in elevation, need not cement coating after the rectangular slab of stone (or piece stone, the hollow brick) construction, be convenient to leak water to form the nature slit.Pile up the hard bed of material top earthing and the compacting that form at the rectangular slab of stone (or piece stone, hollow brick) and form soil property layer 1, the soil property layer thickness is generally 20～30cm, specifically decide according to the suitable growth thickness of field bund economic plants plant that hedge is planted, to guarantee being enough to the provide plant growth required moisture and nutrient.

The careless economic plants 3 of the short filling of soil property layer top planted on two sides be must guard against high arbor in the plantation, and the root system of short filling grass economic plants conversely again can fixed field bund, further strengthens native stone in conjunction with the steadiness of ridge bank.Be used as the walking road in the middle of the soil property layer.

In order to strengthen the adhesion of the hard bed of material and soil property layer, rainwater washes away the soil property layer and causes soil erosion when preventing that rainfall is excessive, the utility model carries out roughening to hard bed of material upper surface 5 and handles to form non-smooth matsurface, the upper surface that contacts with the soil property layer at the hard bed of material 2 is dug the groove 4 of some simultaneously, depth of groove is roughly 3～6cm, and soil property layer 1 is partially submerged in the groove 4.Groove 4 forms miniature moisture holder, is convenient to keep soil moisture to supply with the plant growth, and groove also can strengthen the adhesion between the hard bed of material and the soil property layer simultaneously.

Be laid with the drain hole 6 that some inside and outside walls connect at the hard bed of material 2 walls along differing heights, strengthen the drainability in rainy season, avoid the heavy showers runoff that the hard bed of material is produced damage.The drain hole section gross area is the 1/30-1/40 of whole wall area, has so both realized effective draining, does not influence the stable of the hard bed of material again.

Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. the ridge, arable land bank structure is characterized in that: it is made of two-layer up and down, and lower floor is the hard bed of material (2), and the upper strata is soil property layer (1), and the hard bed of material (2) is piled up by the rectangular slab of stone, piece stone or hollow brick and formed and form the nature slit; Soil property layer (1) thickness is 20～30cm, and soil property layer (1) top planted on two sides plant (3) is middle as the walking road.

2. the ridge, arable land according to claim 1 bank structure, it is characterized in that: the upper surface that the described hard bed of material (2) contacts with the soil property layer carries out roughening to be handled and the spaced apart some grooves (4) that are carved with, groove (4) degree of depth is 3～6cm, and soil property layer (1) is partially submerged in the groove (4).

3. the ridge, arable land according to claim 1 bank structure is characterized in that: the described hard bed of material (2) wall is laid with the drain hole (6) that some inside and outside walls connect along differing heights, and the drain hole section gross area is the 1/30-1/40 of whole wall area.