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Method for recovering ecosystem of degraded soil

An ecosystem and land technology, applied in the fields of botany equipment and methods, climate change adaptation, horticulture, etc., can solve problems such as unsatisfactory effect, high cost, ecological disaster, etc. Effect

Inactive Publication Date: 2011-09-07
昆明光宝生物工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the operation of restoration of degraded land ecosystems, previous research and technical applications often only focused on the restoration of vegetation in the target area, and seldom achieved the purpose of ecological restoration through soil improvement and the interaction between organisms and the environment. Therefore, the existing Technical means are often costly and unsatisfactory in effect, and may even cause new ecological disasters

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Application in the prevention and control of water and soil erosion in the mining area of ​​Dongchuan District, Yunnan and the reconstruction of the ecosystem of road slopes.

[0029] a. Planting of vetiver plants

[0030] Planting altitude: The altitude of the project implementation area is lower than 2000 meters.

[0031] Temperature range: -16~50℃; this temperature fully meets the requirements in the planting area of ​​this project.

[0032] Rainfall requirements: The annual rainfall is 200-6000mm, and the annual average rainfall in Dongchuan is 892mm.

[0033] Soil requirements: no special requirements, experiments show that sandy mudstone is suitable for planting.

[0034] Planting density: 50cm×20cm.

[0035] Implementation scale: about 100 million square meters.

[0036] b. Technical route

[0037] According to the technical scheme and corresponding technical parameters of the present invention, through the construction of vetiver plant communities, soil ero...

Embodiment 2

[0041] Application in the revetment interception system of Beijiegou River in Minzu Village, Yunnan.

[0042] a. Planting of vetiver plants

[0043] Planting altitude: 1880m,

[0044] Temperature range: -16~50℃; this temperature fully meets the requirements in the planting area of ​​this project.

[0045] Rainfall requirements: The annual rainfall is 200-6000 mm, and the average annual rainfall in Kunming next year is 892 mm.

[0046] Soil requirements: no special requirements, experiments show that sandy mudstone is suitable for planting.

[0047] Planting density: 20cm×20cm.

[0048] b. Technical route

[0049] In order to completely intercept the garbage brought by the surrounding rainwater and domestic sewage, more than 3 mu of vetiver plants were planted on the revetment slope of the 600-meter-long river course in Beijiegou according to the technical scheme of the present invention and corresponding technical parameters. Form an "ecological block". At the same time,...

Embodiment 3

[0053] Application in wasteland and slope control of Xiaobainigou debris flow (rocky desertification) in Dongchuan District, Yunnan.

[0054] a. Planting of vetiver plants

[0055] Planting altitude: 700m,

[0056] Temperature range: 7℃~20.1℃,

[0057] Rainfall requirements: annual rainfall of 200-6000mm, annual rainfall of Dongchuan District 688mm, annual evaporation of 3752mm,

[0058] Soil requirements: No special requirements. Experiments show that sandy mudstone is suitable for planting.

[0059] Planting density: 20cm×20cm.

[0060] b. Technical route

[0061] According to the technical scheme of the prime number of the present invention and the corresponding technical parameters, in this study, we selected and domesticated the pioneer plant in the laboratory, so that it has excellent pioneer plant attributes such as drought resistance, waterlogging resistance, and barren resistance. On this basis, the technical problems of drought resistance and water retention mecha...

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PUM

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Abstract

The invention relates to a method for recovering ecosystem of degraded soil, in particular to a method for improving water retention and soil retention capacity of local soil via introducing Vetiveriazizanioides(Linn.)Nash, and appropriately improving the trophic structure, so as to recover the ecology. In the invention, Vetiveriazizanioides(Linn.)Nash plants are planted at the degraded soil area; the planting density is that the row spacing is 15-30 cm, the line spacing is 20-80 cm, and 5-10 lines form an area; the planting channels or slots are 20-25 cm in width and 20-30 cm in depth; 4-5 tillers are clumped to be planted. Due to the adoption of the Vetiveriazizanioides(Linn.)Nash introduced in the invention, the water retention and soil retention capacities of soils can be increased, so that the environment of the target area can ensure the survival of local high slicer layer species; high safety is provided; seeds or sterile seeds are not generated; and the plant body has not underground rhizome or overground creeping tissues, so that the plants do not spread into weeds.

Description

technical field [0001] The invention relates to a method for restoration of a degraded land ecosystem, in particular to a method for ecological restoration by introducing Gramineae Vetiver plants to improve the water and soil retention capacity of local soil and properly improve the nutritional structure. Background technique [0002] The current degradation of land ecosystems such as water and soil erosion, the reduction of roots, the frequent occurrence of natural disasters, and the spread of pollutants have seriously restricted today's economic and social development. In the operation of restoration of degraded land ecosystems, previous research and technical applications often only focused on the restoration of vegetation in the target area, and seldom achieved the purpose of ecological restoration through soil improvement and the interaction between organisms and the environment. Therefore, the existing Technical means are often costly and unsatisfactory in effect, and ...

Claims

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Application Information

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IPC IPC(8): A01G1/00
CPCY02A40/28
Inventor 王晓全杨秋林
Owner 昆明光宝生物工程有限公司
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