CN1345999A

CN1345999A - Soil and water conservation method

Info

Publication number: CN1345999A
Application number: CN 00117460
Authority: CN
Inventors: 关伟伯
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-30
Filing date: 2000-09-30
Publication date: 2002-04-24

Abstract

The present invention relates to a soil and water conservation method, and is characterized by that on the earth's surface a lots of cylindrical holes are excavated and spaced at a centain interval, and said interval between the holes and its hole diameter are defined according to the local precipitation amount and a calculated amount obtained by substracting surface soil infiltration absorbing capacity form rainfall amount in the corresponding period and equal to total reservoir capacity of a miniature water reservoir, so that on the premise of basically no damaging surface soil vegetation said invented method can produce the functions of flood protection and storing water.

Description

A kind of soil and water conservation method

The present invention relates to a kind of soil and water conservation method, belong to the hydraulic engineering technical field.

Soil erosion be mostly because rainfall after the long distance stream in the face of land time; the side flows in rivers,lakes and seas or the reservoir; therefore table soil can be taken away by rain drop erosion; the method of existing bringing soil erosion under control; normally on the ground; particularly on domatic ground, build horizontal ditch or the fish-scale pit retains rainfall; make precipitation can stay table soil the long period; the table regolith rain drop erosion of avoiding being rich in nutrition is run off; because these methods are bigger to the destruction on the face of land; in water conservation; evaporate also corresponding increase; and rainfall still must grow distance on the face of land and flow, so the effect of water and soil conservation is unsatisfactory, as torrential rain; may being destroyed by rush of water in horizontal ditch and fish-scale pit, at this moment not only can not receive its profit; counter its evil that is subjected to.

Purpose of the present invention, just provide a kind of under the prerequisite of not destroying the native vegetation of table substantially, allow the rainwater very short distance of need not flowing through or only flow through in face of land savings and to penetrate into undergroundly, play the effect of flood control, retaining, reach the method that conserves water and soil effectively.

For achieving the above object, method of the present invention is: the miniature reservoir that press in certain interval on the face of land, excavation is numerous, it also is cylindrical hole, the diameter in described interval, hole, the degree of depth, situation with the amount of precipitation of Location, the aggregate storage capacity that the amount of calculation that deducts the table soil osmotic absorption amount of the same period by the disposable amount of precipitation of design frequency equals miniature reservoir decides, and, the diameter of each little shape reservoir, the degree of depth, concrete spacing terrain geology arrange that the volume of promptly single little shape reservoir is determined according to its catchment area.

On the basis of abovementioned technology, the present invention also can do further perfect: 1) when hole wall soil water stability difference and aperture are big, hole wall is made consolidation process, its method can be made protective reinforcing with materials such as cement or lime and handle, enough holes of oozing to be set on hole wall when making protective reinforcing, make the planned speed of water in the miniature reservoir infiltrate in the soil; 2) in the place that the person poultry activity is arranged, add a cover in the aperture of miniature reservoir, has covered the aperture water inlet.

After having taked abovementioned technology, when rainy, rainwater need not flow on the face of land or the extremely short distance of only flowing through can flow to the miniature reservoir that scatters the face of land and saves and infiltrate in the soil, play the effect of flood control, water and soil conservation and minimizing water evaporates, do not destroy the native vegetation of table, reach the purpose that conserves water and soil effectively; It is poor to accommodate especially in the native water retaining capacity of table, and the incident again arid area of severe water and soil erosion also has certain flooding action simultaneously; In addition, also can be used for the irrigation and the fertilising of urban landscaping, orchard, commodity trees.

The present invention is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the sectional drawing of miniature reservoir of the present invention;

Fig. 2 is the sectional drawing that has retaining wall and the miniature reservoir of permeability hole;

Fig. 3 is the miniature reservoir sectional drawing that has lid;

From Fig. 1, can see, the present invention is with the miniature reservoir of excavation in certain interval on the face of land, it also is cylindrical hole 8, the diameter 2 in described interval 1, hole, the degree of depth 3 are with the situation of the amount of precipitation of Location, the aggregate storage capacity that the amount of calculation that deducts the table soil osmotic absorption amount of the same period by the disposable amount of precipitation of design frequency equals miniature reservoir decides, when particularly the aperture is big, the degree of depth of miniature reservoir is decided according to design, for making things convenient for the manual maintenance cleaning, (except the mechanical chipping) should be controlled in 1.5 meters, when the aperture is big, can suitably strengthen.

From Fig. 2 and Fig. 3, can see, when hole wall soil water stability difference and aperture are big, materials such as available cement or lime are made protective reinforcing and are handled, be that overcoat 4 is arranged on the hole wall, overcoat 4 is provided with enough holes 5 of oozing when making protective reinforcing, makes the planned speed of water in the miniature reservoir infiltrate in the soil; In the place that the person poultry activity is arranged, can add a cover 6 in the aperture of miniature reservoir, aperture 7 water inlets are arranged on the lid 6.

The column type hole can dynamic power machine or manual machine, with impacting or the mode dry method pore-forming that circles round, guaranteeing to adopt minor diameter under the constant prerequisite of design water retention capacity, to improve wall stability and to reduce the pore-forming cost, also can reduce destruction simultaneously to natural surface; When the earthy water stability was better, the hole wall of miniature reservoir can not produce the hole of collapsing, and hole wall can not made consolidation process, directly the method for excavating on the face of land; When hole wall soil water stability difference and aperture are big, hole wall is made consolidation process, and as shown in Figure 2, its method can be made protective reinforcing with materials such as cement or lime and handle, enough holes of oozing to be set on hole wall when making protective reinforcing, make the planned speed of water in the miniature reservoir infiltrate in the soil; Figure 3 shows that in the place that the person poultry activity is arranged, add a cover in the aperture of miniature reservoir, covered the aperture water inlet.

Claims

1, a kind of soil and water conservation method, it is characterized in that: on the face of land with certain interval, the excavation numerous little shape reservoirs be hole (8), the diameter (2) of described interval (1), hole, the degree of depth (3), deduct the incompatible decision that the surplus of showing native osmotic absorption amount the same period equals all hole capacity with Location by the disposable amount of precipitation of design frequency, and the diameter of each little shape reservoir, the degree of depth, concrete spacing terrain geology arrange that the volume of promptly single little shape reservoir is determined according to its catchment area.

2, soil and water conservation method according to claim 1 is characterized in that: described hole hole wall is made overcoat (4) with materials such as cement or lime, and overcoat (4) is provided with and oozes hole (5).

3, soil and water conservation method according to claim 2 is characterized in that: (6) are added a cover in the aperture, have covered inlet opening (7).