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Method for recovering vegetation in desertified land in extremely droughty area

A technology for vegetation restoration and arid areas, applied in the field of ecological construction, can solve the problems of surface vegetation destruction, high investment costs, and difficulty in germination and growth on the surface, and achieve the effect of promoting ecological restoration, low investment, and high utilization rate

Inactive Publication Date: 2013-02-06
XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional afforestation methods require a large amount of water resources, seedlings, and a complete irrigation system, and the investment cost is high. However, in desertified areas, especially in extreme arid areas, water resources are scarce and the social and economic foundation is poor. Traditional afforestation and restoration vegetation techniques are difficult to promote , the research on low-cost vegetation restoration technology suitable for these areas is the current technical difficulty
[0004] Naturally growing plant species in desert areas in extremely arid regions are formed in periods with good natural water conditions and in local areas. Although they can form a large number of seeds every year, it is difficult to germinate and grow on the surface of arid quicksand, and the cloning of vegetative organs is often used for population reproduction. Therefore, Once the surface vegetation is destroyed, it is extremely difficult to restore

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  • Method for recovering vegetation in desertified land in extremely droughty area

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Effect test

Embodiment 1

[0020] a. Establish irrigation water source 1, install irrigation power, lay out mobile irrigation pipe network, install main valve 3 at one end of main pipe 2, and install branch pipe connection ports 4 and branch pipe connection ports 4 in equal arrangement on main pipe 2 A valve 5 is installed to connect the branch pipe 6 to the branch pipe connection port 4, and only a pair of branch pipes 6 are connected to the main pipe 2, and the branch pipe 6 is connected to each branch pipe connection port 4 on the main pipe 2 by moving the branch pipe 2 to realize irrigation for different sections;

[0021] b. Connect the drip irrigation capillary 7 with the branch pipe 6. The distance between the capillary 7 is 2m, and the distance between the drippers is 1m. If the soil seed bank in desertified land has very low reserves or there are no plant seeds with deep roots, it must be dug shallow under the capillary 7 before irrigation. Ditch, sow local deep-rooted plant seeds, and then bury...

Embodiment 2

[0027] a. Establish irrigation water source 1, install irrigation power, lay out mobile irrigation pipe network, install main valve 3 at one end of main pipe 2, and install branch pipe connection ports 4 and branch pipe connection ports 4 in equal arrangement on main pipe 2 A valve 5 is installed to connect the branch pipe 6 to the branch pipe connection port 4, and only a pair of branch pipes 6 are connected to the main pipe 2, and the branch pipe 6 is connected to each branch pipe connection port 4 on the main pipe 2 by moving the branch pipe 2 to realize irrigation for different sections;

[0028] b. Connect the drip irrigation capillary 7 with the branch pipe 6. The distance between the capillary 7 is 3m, and the distance between the drippers is 2m. If the soil seed bank in desertified land has very low reserves or there are no plant seeds with deep roots, it is necessary to dig shallow under the capillary 7 before irrigation. Ditch, sow local deep-rooted plant seeds, and t...

Embodiment 3

[0034] a. Establish irrigation water source 1, install irrigation power, lay out mobile irrigation pipe network, install main valve 3 at one end of main pipe 2, and install branch pipe connection ports 4 and branch pipe connection ports 4 in equal arrangement on main pipe 2 A valve 5 is installed to connect the branch pipe 6 to the branch pipe connection port 4, and only a pair of branch pipes 6 are connected to the main pipe 2, and the branch pipe 6 is connected to each branch pipe connection port 4 on the main pipe 2 by moving the branch pipe 2 to realize irrigation for different sections;

[0035] b. Connect the drip irrigation capillary 7 with the branch pipe 6. The distance between the capillary 7 is 4m, and the distance between the drippers is 3m. If the soil seed bank in desertified land has very low reserves or there are no plant seeds with deep roots, it must be dug shallow under the capillary 7 before irrigation. Ditch, sow local deep-rooted plant seeds, and then bury...

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Abstract

The invention provides a method for recovering vegetation in a desertified land in an extremely droughty area. The method relates to a movable temporary irrigation system which is used to supplement water to the desertified soil to promote the germination and growth of seeds in a soil seed bank; soil drought is used to induce plants with deep roots to grow downwards; and underwater or other water resources are used to achieve self-maintenance growth of the plants without irrigation. The method is different from a traditional high-investment forestation and vegetation recovery method, has the advantages of low investment and good effect, and is applicable to areas having certain water resources in the extremely droughty area.

Description

technical field [0001] The invention relates to an ecological construction method, in particular to a method for restoring vegetation in desertified land in an extremely arid region. Background technique [0002] Desertification refers to the destruction of ecosystems caused by natural factors and human activities in arid and semi-arid (including some semi-humid) areas, resulting in the appearance of a sandy desertification-like environment mainly characterized by wind and sand activities in non-desert areas. degradation. The land area affected by desertification on the earth is more than 38 million square kilometers. At present, about 6 million hectares of land in the world experience desertification every year. The desertification problem involves a wide range and has attracted worldwide attention. Desertification leads to land degradation, decline in productivity, surface wind erosion and desertification, movement of sand dunes to bury farmland, roads, and houses, and t...

Claims

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Application Information

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IPC IPC(8): A01G25/02
CPCY02A40/22
Inventor 李生宇雷加强曾凡江徐新文
Owner XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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