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A kind of engineering improvement and ecological construction method of sticky board severe saline-alkali land

A technology of sticking boards in severe saline-alkali land, applied in soil preparation methods, agricultural machinery and implements, agriculture, etc., can solve the problems of low plant emergence rate, strong secondary salt return, and low efficiency of salt leaching, so as to achieve rational use of biological resources, The effect of improving the efficiency of salt drainage and improving the efficiency of salt leaching

Active Publication Date: 2020-03-24
INST OF SOIL SCI CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Technical problem to be solved: the present invention aims at practical problems such as low plant emergence rate, low salt leaching efficiency, strong secondary salt return, and serious ecological degradation in severe saline-alkali land and saline-alkali wasteland, and combines underground pipe drainage and open ditch salt drainage to control groundwater Position and accelerate the soil salt discharge, improve the soil with gypsum and increase the efficiency of salt leaching, realize the engineering rapid control of the sticky board severe saline-alkali land, and propose an engineering improvement and ecological construction of the sticky board severe saline-alkali land according to the irrigation water quality and the salt tolerance threshold of plants method

Method used

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  • A kind of engineering improvement and ecological construction method of sticky board severe saline-alkali land
  • A kind of engineering improvement and ecological construction method of sticky board severe saline-alkali land
  • A kind of engineering improvement and ecological construction method of sticky board severe saline-alkali land

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Embodiment 1

[0038] Typical severe saline-alkali land in Hetao irrigation area, Inner Mongolia. The soil salinity in the 0-20cm surface layer of the test ground is 7.4-9.6g / kg, the average salt content is 8.7g / kg, the average organic matter content is 8.9g / kg, the total nitrogen is 0.72g / kg, the alkaline nitrogen is 69.65mg / kg, and the available phosphorus 14.76mg / kg, available potassium 169.3mg / kg, cation exchange capacity CEC 15.8cmol / kg, soil alkalinity ESP 17.3%, 0-40cm soil is loam, 40-160cm is clay loam, 0-200cm profile Soil bulk density is between 1.45-1.67g / cm 3 . Location: Community 1, Chengni Village, Sandaoqiao Town, Hangjinhou Banner, Bayannur City, Inner Mongolia. It is a typical representative of saline-alkali land in the Hetao irrigation area. The test period is from December 2016 to November 2017. The experimental plot was a saline-alkali wasteland in the early stage. In December 2016, hidden pipes were laid and engineering treatment was carried out, and salt-tolerant pla...

Embodiment 2

[0051] New tidal flat saline-alkali wasteland reclamation in Binhai, Jiangsu. The soil salinity in the 0-20cm surface layer of the test ground is 8.2-13.6g / kg, the average salt content is 10.8g / kg, the pH is 8.83, the average organic matter content is 0.07g / kg, the total nitrogen is 0.16g / kg, and the alkaline nitrogen is 9.83mg / kg kg, available phosphorus is 3.27mg / kg, available potassium is 291.7mg / kg, cation exchange capacity CEC is 7.6cmol / kg, soil alkalinity ESP is 15.8%, 0-20cm soil is sandy loam, 20-160cm is silt loam , 0-200cm section soil bulk density is between 1.41-1.56g / cm 3 . Location: Tiaozini Xinken tidal flat area, Canang Town, Dongtai City, Jiangsu Province, which is a typical representative of coastal mud flat saline-alkali land. The test period was from March 2016 to November 2016. In the early stage of the test plot, it was a newly reclaimed tidal flat saline-alkali land with an altitude of 0.5-1.0m. In November 2015, hidden pipes were laid and engineering...

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Abstract

The invention discloses a fiber sticking strongly saline-alkali soil engineering improvement and ecological establishment method. A concealed conduit salt elimination system is laid underground fibersticking strongly saline-alkali soil, an open ditch drainage system is dug according to the pipeline running layout of the concealed conduit salt elimination system, a fiber sticking layer is broken by deep scarification, gypsum is applied, irrigation salt-leaching is performed after rotary tillage blending, suitable salt-tolerant plant types are determined according to irrigation water quality, and plants are planted by ridging. Concealed conduit drainage is combined with open ditch salt elimination, underground water level is controlled, soil salt elimination is accelerated, soil is improvedby the gypsum, salt-leaching efficiency is improved, and rapid engineering improvement of the fiber sticking strongly saline-alkali soil is realized.

Description

technical field [0001] The invention relates to a method for engineering improvement and vegetation construction of saline-alkali land, in particular to an engineering improvement and ecological establishment method for heavily saline-alkali land with sticky boards. Background technique [0002] At present, our country has about 550 million mu of saline-alkali land resources that can be used, and they are concentrated in five major regions, mainly in the northwest inland, the upper and middle reaches of the Yellow River, the northeast, the coast and the North China Plain. Among them, the total area of ​​saline-alkali land with agricultural utilization prospects is 185 million mu , including 32 million mu of cultivated land with saline-alkali barriers that have not been treated and transformed, and 153 million mu of unused and newly formed saline-alkali wasteland. The transformation, development and utilization of these saline-alkali cultivated land and wasteland are of great...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02
CPCA01B79/005A01B79/02Y02A40/10
Inventor 姚荣江杨劲松王相平陈强谢文萍陶建宇郑复乐
Owner INST OF SOIL SCI CHINESE ACAD OF SCI
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