'Double-S-shaped' drainage salt-control pipeline integrated isolation mat and method for saline-alkali land

Abstract

The invention relates to a 'double-S-shaped' drainage salt-control pipeline integrated isolation mat and method for saline-alkali land. The isolation pad comprises an upper mat and a lower mat, and double-S-shaped pipes and equal-height supporting rods in matrix distribution are arranged between the upper mat and the lower mat. The method includes that irrigation residual water is gathered on theupper mat and enter water inlet pipes along water inlet holes of the isolation mat; when deep seepage is low, a small quantity of water is stored in primary water storage elbows; when deep seepage ishigh, water in the primary water storage elbows is full, then enters single-way overflowing pipes along primary connection pipes to be collected into secondary water storage elbows and is gathered into drain pipes and further gathered into a main drain pipe; when the underground water level is high, after underground water reaches the lower mat, water flows into the drain pipes through the secondary water storage elbows and is collected into the main drain pipe, and water in the main drain pipe flows to the ground and is pumped through a pump. Therefore, the common problem of difficulty in control of surface water-salt environments in drought regions is solved.

Description

technical field [0001] The invention relates to an integrated isolation pad and a method for a "double S-shaped" drainage and salt control pipeline in saline-alkali land, belonging to the technical field of farmland water conservancy engineering. Background technique [0002] In the arid regions of my country, due to natural factors such as water shortage and strong evaporation, soil moisture moves upwards with evaporation and accumulates to the soil surface along with the continuous upward movement of soil salinity. Controlling soil water evaporation is of great significance for controlling the accumulation of salt on the soil surface, preventing soil salinization, and ensuring the sustainable and stable yield of crops. In my country's modern agricultural production, the method of soil layer isolation is often used to control the movement process of soil moisture. Common soil isolation measures mainly include straw isolation and biochar application. Straw isolation can in...

AI Technical Summary

Problems solved by technology

Straw isolation can inhibit soil water evaporation to a certain extent, but in the long-term use, the straw decay process will easily cause the imbalance of surface soil carbon and nitrogen ratio, and the excessive or uneven amount of straw returned to the field will easily cause the risk of soil microorganisms competing with crop seedlings for nutrients, and even There are yellow seedlings, dead seedlings, and reduced production

As a new type of field isolation material that has emerged in recent years, biochar has been gradually promoted in northern my country, but its preparation process is complicated, and it is difficult for farmers to quickly master it.

In addition, the unreasonable application of biochar will cause changes in soil structure, resulting in immeasurable ecological problems

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