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Method for recovering Tamarix chinensis self-maintenance capability by manpower on arid desert

A desert and tamarisk technology, applied in forestry, application, agriculture, etc., to achieve the effect of low economic cost, increase the survival rate in the later period, and avoid reverse succession

Inactive Publication Date: 2011-04-13
XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the arid and extremely arid areas of Xinjiang, the buried depth of groundwater is mostly below 3 meters, and groundwater can affect the soil layer up to 2 meters above the groundwater level through capillary force. This makes it difficult for Tamarix seedlings artificially restored in desert areas to cancel artificial irrigation. Under the conditions of assistance and lack of natural precipitation, it can survive in the short term by relying on its self-sustaining ability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] a. Seedling selection:

[0024] The tree species planted are mainly local shrub species Tamarix with certain drought resistance. The quality of seedlings is an important factor affecting the survival rate. Therefore, robust seedlings must be selected. Generally, 1-year-old seedlings are selected to ensure root length, ground diameter and height above ground. 30cm, no damage to the root system, splitting, unqualified seedlings, diseased seedlings, and disabled seedlings must not be used;

[0025] b. Early site preparation:

[0026] Before planting, a shallow ditch for planting and early saturated irrigation should be excavated, with a width of 50cm and a depth of 15cm. It is used for saturated irrigation of early planted seedlings and to prevent dry discharge of salt caused by later irrigation. The spacing between seedlings can be conventional, and the row spacing is 2m. , the tree planting pits are arranged in shallow trenches;

[0027] c. Post-processing:

[0028] A...

Embodiment 2

[0032] a. Seedling selection:

[0033]The tree species planted are mainly local shrub species Tamarix with certain drought resistance. The quality of seedlings is an important factor affecting the survival rate. Therefore, robust seedlings must be selected. Generally, 1-year-old seedlings are selected to ensure root length, ground diameter and height above ground. 35cm, no damage to the root system, splitting, unqualified seedlings, diseased seedlings, and disabled seedlings must not be used;

[0034] b. Early site preparation:

[0035] Before planting, a shallow ditch for planting and early saturated irrigation should be excavated, with a width of 55 cm and a depth of 18 cm. It is used for saturated irrigation of early planted seedlings and to prevent dry discharge of salt caused by later irrigation. The spacing between seedlings can be conventional, and the row spacing is 2.5 m, tree planting pits are arranged in shallow trenches;

[0036] c. Post-processing:

[0037] Aft...

Embodiment 3

[0041] a. Seedling selection:

[0042] The tree species planted are mainly local shrub species Tamarix with certain drought resistance. The quality of seedlings is an important factor affecting the survival rate. Therefore, robust seedlings must be selected. Generally, 1-year-old seedlings are selected to ensure root length, ground diameter and height above ground. 40cm, no damage to the root system, splitting, unqualified seedlings, diseased seedlings, and disabled seedlings must not be used;

[0043] b. Early site preparation:

[0044] Before planting, a shallow ditch for planting and early saturated irrigation should be excavated. Its width is 60cm and depth is 20cm. It is used for saturated irrigation of early planted seedlings and to prevent dry discharge of salt caused by later irrigation. The spacing between seedlings can be conventional, and the row spacing is 3m. , the tree planting pits are arranged in shallow trenches;

[0045] c. Post-processing:

[0046] After ...

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Abstract

The invention relates to a method for artificially restoring self-maintenance capacity of Chinese tamarisk in a drought desert area, which comprises the following steps of nursery stock selection, early soil preparation, after-treatment and the like, and utilizes hydrotropism of root system development of the Chinese tamarisk and a feedback regulation system formed through drought induction of partial root systems of the Chinese tamarisk to increase water acquiring capacity of the artificially restored Chinese tamarisk and improve the adaptive capacity of the Chinese tamarisk to the drought so as to achieve the aim of improving the integral self-maintenance capacity of the artificially restored Chinese tamarisk in the drought desert area and avoid converse succession after the artificial assistance measures are cancelled. The method realizes survival and growing development of artificially restored Chinese tamarisk seedlings by means of the self-maintenance capacity of the Chinese tamarisk seedlings under the natural conditions of precipitation amount less than 100 mm and groundwater burial depth between 3 and 4 m after the artificial assistance measures are cancelled.

Description

technical field [0001] The invention relates to a technology for improving the self-sustaining ability of desert vegetation restoration, in particular to a method for artificially restoring the self-sustaining ability of tamarisk in arid desert areas. Background technique [0002] More than 40% of the world's continental area is covered by arid and semi-arid areas, and the process of global desertification is increasing day by day. The desertification area has reached 36 million square kilometers, accounting for 1 / 4 of the entire earth's land area. Desertification is no longer an issue. A purely ecological problem has evolved into an economic and social problem. The total area of ​​arid and semi-arid regions in my country accounts for about half of the total area of ​​the country. The national desert and desertification land area reaches 1.533 million square kilometers, accounting for 15.9% of the country's land area. It is one of the countries with the largest desert area...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G23/00
Inventor 朱成刚李卫红马晓东陈亚宁
Owner XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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