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A method for afforestation of secondary salinized land in arid area

A technology for secondary salinization and arid areas, applied in land preparation methods, afforestation, and botanical equipment and methods, etc., can solve problems such as difficulty in improving salinity, poor fertility in salinized land, and low plant survival rate in salinized land, etc. problems, to achieve the effect of small water consumption, meeting the needs of water, and saving ecological water

Active Publication Date: 2018-05-22
XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method solves the problems of difficult salinization improvement of salinized land in arid areas, poor fertility of salinized land, and low survival rate of plants in salinized land, and provides rapid improvement, fertilization and realization of salinized land in secondary salinized land. Planting trees on land offers a new approach

Method used

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  • A method for afforestation of secondary salinized land in arid area

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In the Yingsu section of the lower reaches of the Tarim River, planted on secondary salinized land with a soil salt content of 9.30g / L and a total nitrogen content of 0.14g / L:

[0022] a, species selection: select four types of plants-arbor 1, shrub 4, halophytic herb 2 and high-quality forage 3, wherein the species of arbor 1 is Populus euphratica with 2-3 years of life, complete root system or little damage, and a base diameter of 5 cm; shrub 4 For species, choose Tamarix splendens, which is 2-3 years old, with a well-developed root system, and a base diameter of 3-5cm; for halophytic herbs, 2, choose the seeds of Salicina splendens with salt-excreting function; for high-quality grass, 3, choose the seeds of Achnatherum splendens, a gramineous herb that has a wide habitat and is easy to survive. ;

[0023]b. Species configuration mode: according to the planting sequence: 1 row of Populus euphratica in the horizontal direction - 2 rows of saline herb Achnatherum splend...

Embodiment 2

[0027] In the 34 groups of the lower reaches of the Tarim River, planted on secondary salinized land with a soil salt content of 6.58g / L and a total nitrogen content of 0.21g / L:

[0028] a, species selection: select four types of plants-arbor 1, shrub 4, halophytic herb 2 and high-quality forage 3, wherein the species of arbor 1 is selected from 2-3 years old, complete root system or little damage, and the base diameter is 5cm. 4 Species choose Haloxylon, which is 2-3 years old, with a well-developed root system and a base diameter of 3-5cm; for halophytic herbs 2, choose the seeds of Huahuachai with salt-excreting function; wheat seeds;

[0029] b. Species configuration mode: according to the planting order: horizontally, there is 1 row of arbor syringa - 2 rows of saline herb Huachai - 3 rows of high-quality pasture brome - 4 rows of shrub Haloxylon - 3 rows of high-quality pasture brome - saline herb 2 rows of Huahuachai - 1 row of Arboria sylvestris are planted alternatel...

Embodiment 3

[0033] Planted on secondary salinized land with a soil salt content of 8.65g / L and a total nitrogen content of 0.33g / L in the 33 groups of the lower reaches of the Tarim River:

[0034] a, species selection: select four types of plants-arbor 1, shrub 4, halophytic herb 2 and high-quality forage 3, wherein the arbor 1 species selects 2-3 years old, complete root system or little damage, Xinjiang poplar with a base diameter of 5cm; shrub 4 Species choose red sand that is 2-3 years old, with a well-developed root system and a base diameter of 3-5cm; halophytic herbs 2 choose the seeds of salt-excreting salt claws; high-quality grass 3 choose gramineous forages that have a wide habitat and are easy to survive Three miscanthus seeds;

[0035] b. Species configuration mode: according to the planting order: horizontally, 1 row of arbor Xinjiang poplar - 2 rows of halophytic herb, 2 rows of salt claw - 3 rows of high-quality herb Sansigma - 4 rows of shrub red sand - 3 rows of high-qu...

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Abstract

The invention relates to an afforestation method for arid region secondary salinization land. The method mainly comprises the steps of species selection, species allocation mode selection, species planting time selection, species planting mode selection and irrigation mode selection. In the method, by selecting reasonable allocation and planting modes and a reasonable irrigation mode of different plants of arbors, shrubs and grass, a phytocoenosium with an arbor, shrub and grass structure is created on the secondary salinization land with the total salt content of 6.58-9.30 g / L, meanwhile, the purposes of soil salt elimination and soil fertilization are achieved, the survival rate of the arbors in the secondary salinization land is increased, and it is guaranteed that afforestation in the arid region secondary salinization land can be rapidly achieved. By means of the method, the problems that salinity improvement on the arid region salinization land is difficult, fertility of the salinization land is low, and the survival rate of plants in the salinization land is low are solved, and a new method is provided for rapid improvement on the secondary salinization land, fertilization of the secondary salinization land and afforestation in the salinization land.

Description

technical field [0001] The invention relates to a method for afforestation of secondary salinized land in an arid area, in particular to a method for afforestation of secondary salinized soil in a desert area in the lower reaches of the Tarim River. Background technique [0002] The area of ​​saline soil in the world is about 1 billion hm 2 , distributed in arid regions on all continents of the world, mainly concentrated in Eurasia, Africa, and western America. my country's saline-alkali land reaches 99.13 million hm 2 , the land area of ​​agriculture, forestry and pastoral land affected by salinization is 36.3 million hm 2 , of which 9.21 million hm of arable land 2 , 4.12 million hm of woodland 2 , 23.2 million hm of grassland 2 . It is mainly distributed in the Huang-Huai-Hai Plain, the Loess Plateau and the inland area of ​​Northwest China. There are also large areas of saline-alkali land in the Northeast Plain and coastal areas. China still has about 17.33 milli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02A01G22/00A01G17/00A01G25/02
CPCA01G17/005A01G22/00A01G25/02Y02A40/22Y02P60/40
Inventor 周洪华陈亚宁李卫红陈亚鹏王日照
Owner XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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