Fiber sticking strongly saline-alkali soil engineering improvement and ecological establishment method

A technique of sticking boards in severe saline-alkali land, applied in soil preparation methods, climate change adaptation, agricultural machinery and tools, etc., can solve the problems of low plant emergence rate, strong secondary salt return, and low salt leaching efficiency, and achieve rational utilization of biological The effect of improving the efficiency of resources and salt drainage, and improving the efficiency of salt leaching

Active Publication Date: 2018-05-29
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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  • Fiber sticking strongly saline-alkali soil engineering improvement and ecological establishment method
  • Fiber sticking strongly saline-alkali soil engineering improvement and ecological establishment method

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Effect test

Embodiment 1

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

Embodiment 2

[0051] Jiangsu Binhai newly reclaimed tidal flat saline-alkali wasteland. The test surface 0-20cm soil salt content 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, total nitrogen is 0.16g / kg, and the alkali-hydrolyzable nitrogen is 9.83mg / 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 silty loam , 0-200cm section soil bulk density is between 1.41-1.56g / cm 3 . Location: The new reclamation tidal flat area of ​​Tiaozini, Jigang Town, Dongtai City, Jiangsu Province. It is a typical representative of coastal muddy tidal flat saline-alkali land. The test time is from March 2016 to November 2016. The early stage of the test plot was a saline-alkali land in the Xinken tidal flat with an altitude of 0.5-1.0m. Concealed pipes were laid and treated in November 2015, and plants b...

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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 a method for engineering improvement and ecological establishment of a sticky board for heavily saline-alkali land. Background technique [0002] my country currently has about 550 million acres of usable saline-alkali land resources, which are concentrated in five major regions with the inland northwest, the upper and middle reaches of the Yellow River, the northeast, the coast and the North China Plain as the main body. Among them, the total area of ​​saline-alkali land with prospects for agricultural use is 185 million acres. , Including 32 million acres of untreated saline-alkali arable land, and 153 million acres of unused and newly formed saline-alkali wasteland. The management, transformation, development and utilization of these saline-alkali farmland and wasteland have important practical significance for my country's far...

Claims

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Application Information

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Patent Type & Authority Applications(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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