CN202019536U

CN202019536U - Earth ditch structure for improving saline-alkali soil

Info

Publication number: CN202019536U
Application number: CN2011200622270U
Authority: CN
Inventors: 张琪; 崔心红; 王智勇; 沈烈英
Original assignee: SHANGHAI INST OF GARDEN SCIENCE
Current assignee: SHANGHAI INST OF GARDEN SCIENCE
Priority date: 2011-03-11
Filing date: 2011-03-11
Publication date: 2011-11-02
Anticipated expiration: 2021-03-11

Abstract

The utility model relates to an earth ditch structure for improving saline-alkali soil, which belongs to the technical field of soil improvement and is characterized in that approximately vertical soil walls are arranged at both sides of a formed earth ditch, square or rectangular bamboo raft baffle plates ranged by fine bamboos or split flat bamboos through transverse and vertical interweaving are tightly pasted beside the soil walls, overlapped press edges are arranged at both sides of the vertical bamboo raft baffle plates, in addition, vertical wood piles arranged at intervals are used for fixing the bamboo raft baffle plates, and the bamboo raft baffle plates are supported through transverse bamboo and wood sticks between the soil walls at both sides. The earth ditch structure has the beneficial effects that the salt in the soil can be effectively reduced, the salt in the upper layer soil is fast strained into the lower-layer soil through irrigation or rainfall and is discharged out of a soil body along with underground water. The earth ditch structure has the advantages that the structure is simple, the cost is low, the operation is simple and convenient, and the effect is obvious.

Description

A kind of native groove structure of improvement salt affected soil

Technical field

Belong to the soil melioration technical field, exactly relate to a kind of native groove structure that salt affected soil is administered, improved.

Background technology

Saline-alkali soil be meant contain in the soil body too high salt and alkali component, comprise that general name of all kinds soil of to a certain degree salinization or alkalinization has taken place for solonchak and alkaline earth and other.The salinization of soil is a global resource and ecological problem, and the area of China's saline-alkali soil is 3.5 * 10 ⁷Hm ²The water soluble salt branch comprises different ions in the soil, as Cl ^-, SO ₄ ^2-, CO ₃ ^2-, HCO ₃ ^-, Na ⁺, K ⁺, Ca ²⁺, Mg ²⁺Deng.Generally, they in the soil solution as nutrient component.When the concentration of these ions reaches when being enough to that soil property and plant growing produced harmful effect, just become salinity.Salinity is dissolved in the water, and the dynamic law in soil can reduce " salt comes with water, and water looses with gas, and the diffusing salt of gas is deposited ".Therefore the key that improves saline-alkali soil is to harness the river, and sets up suitable irrigation and drainage system with functions, to guarantee the relatively stable of plantation layer salt content.

The common irrigation and drainage system of the reclamation of salinep-alkali soil has the laying mode that the dark row of hidden pipe salt discharge, open drain salt discharge and bright row combines at present.Problems such as hidden pipe salt discharge method exists investment big, and hidden pipe is easily blocked.The open drain salt discharge then adopts cement, stone etc. to construct the drain ditch, this salt discharge ditch since furrow bank do not have hole can not discharge moisture in the soil body, can only play converge, drainage, and the investment bigger, the later maintenance complexity.

Summary of the invention

The utility model soil body desalination of providing convenience, efficient energy-saving, easy maintenance, material is easy to get, a kind of native groove structure of improvement salt affected soil simple in structure.

The technical scheme that the utility model is taked:

A kind of native groove structure of improvement salt affected soil, its scheme is:

A kind of native groove structure of improvement salt affected soil, comprise the Tu Gou that from salt affected soil, excavates out, its scheme is: there is the cob wall of near vertical the Tu Gou both sides of formation, are close on the cob wall limit by thin bamboo or the flat bamboo dissectd, the layout squarely that interweaves in length and breadth or rectangular bamboo raft baffle plate; There is overlapping flanging on upright bamboo raft baffle plate both sides, and the fixing bamboo raft baffle plate of spaced vertical timber, support the bamboo raft baffle plate by horizontal bamboo and wood rod between the cob wall of both sides.

The beneficial effects of the utility model are:

The utility model is constructed the salt discharge ditch with the bamboo raft, the one, material is easy to get, method is easy, and the 2nd, bamboo raft hole is more, can not only get rid of surface water, excessive moisture also can effectively be discharged in the soil body, the 3rd, utilize natural precipitation to quicken soil body desalination, efficient energy-saving, and later maintenance is easy, the 4th, it is big to be particularly suitable for precipitation, and the shallow coastal saline-alkali land reform of subterranean water level is good.Implement effectively to reduce salt ion content in the soil behind the utility model.After the soil melioration, salt ion can be discharged the soil body by irrigation or the rapid drip washing of rainfall in the upper layer of soil in lower soil and with underground water; The utility model is simple in structure, and is with low cost, easy and simple to handle, and effect is obvious.

Description of drawings

Fig. 1, be the utility model sectional structure schematic diagram,

Embodiment

Now the utility model is described in further detail in conjunction with the accompanying drawings,

A kind of native groove structure of improvement salt affected soil, comprise the Tu Gou that from salt affected soil, excavates out, its structure is: there is the cob wall of near vertical native ditch 1 both sides of formation, are close on the cob wall limit by thin bamboo or the flat bamboo dissectd, the layout squarely that interweaves in length and breadth or rectangular bamboo raft baffle plate 2; There is overlapping flanging 3 on upright bamboo raft baffle plate both sides, and the fixing bamboo raft baffle plate of spaced vertical timber 4, support the bamboo raft baffle plates by horizontal bamboo and wood rod 5 between the cob wall of both sides.

Claims

1. improve a kind of native groove structure of salt affected soil, comprise the Tu Gou that from salt affected soil, excavates out, it is characterized in that: there is the cob wall of near vertical the Tu Gou of formation (1) both sides, be close on the cob wall limit by thin bamboo or the flat bamboo dissectd, the layout squarely that interweaves in length and breadth or rectangular bamboo raft baffle plate (2); There is overlapping flanging (3) on upright bamboo raft baffle plate both sides, and the fixing bamboo raft baffle plate of spaced vertical timber (4), support the bamboo raft baffle plate by horizontal bamboo and wood rod (5) between the cob wall of both sides.