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Hydro-thermal balanced degraded alpine meadow repairing material

A repair material and high-cold technology, which is applied in the fields of lawn growth, agricultural machinery and implements, and soil preparation methods, can solve problems such as difficulty in adapting to the promotion and application of the Qinghai-Tibet Plateau, difficulty in self-recovery of damaged alpine meadows, and slow cycle conversion rate, etc., to achieve Improve feeding value, improve resilience and biodiversity, and reduce the effect of leaching damage

Active Publication Date: 2021-07-27
INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the restoration of damaged alpine meadows mainly adopts the management measures of enclosing and prohibiting grazing. However, due to the slow conversion rate of material circulation in the alpine environment, it is difficult for damaged alpine meadows to recover on their own without the input of external material and energy.
The existing meadow restoration methods on the Qinghai-Tibet Plateau are mainly carried out by supplementary seeding and fertilization, and there are few artificial meadow layers, and the restoration methods of artificial meadow layers based on water and heat balance have not been reported.
Due to the extremely high altitude of the Qinghai-Tibet Plateau, strong radiation, large temperature differences, and easy aging of materials, vegetation blankets made of plant fibers have problems such as high cost, difficult transportation, and easy disintegration, and it is difficult to adapt to the promotion and application of the Qinghai-Tibet Plateau.

Method used

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  • Hydro-thermal balanced degraded alpine meadow repairing material

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Effect test

Embodiment 1

[0033] In this embodiment, the degraded alpine meadow is repaired. The restoration process is as follows: when the temperature reaches above zero degrees Celsius in late spring and early summer from April to May, a rain-proof shed is set up near the alpine meadow block to be repaired to make an artificial meadow bed, and the repair process is completed. Before the alpine meadow defect patch plots, first dig out the soil at this place, and use a 50-mesh sieve to throw away the coarse sand and gravel from the excavated alpine meadow soil, then pass the remaining soil through a 100-mesh sieve, and pass through a 100-mesh sieve. The sieved soil with physical viscosity is used to make the water-retaining layer of the artificial meadow bed, and the silt soil that does not pass the 100-mesh sieve is used to make the nutrient layer and seed layer of the artificial meadow bed, and the sieved soil is used to make artificial grass The specific process of the bed includes the following ste...

Embodiment 2

[0042] In this embodiment, the degraded alpine meadow is repaired. The restoration process is as follows: when the temperature reaches above zero degrees Celsius in late spring and early summer from April to May, a rain-proof shed is set up near the alpine meadow block to be repaired to make an artificial meadow bed, and the repair process is completed. Before the alpine meadow defect patch plots, first dig out the soil at this place, and use a 50-mesh sieve to throw away the coarse sand and gravel from the excavated alpine meadow soil, then pass the remaining soil through a 100-mesh sieve, and pass through a 100-mesh sieve. The sieved soil with physical viscosity is used to make the water-retaining layer of the artificial meadow bed, and the silt soil that does not pass the 100-mesh sieve is used to make the nutrient layer and seed layer of the artificial meadow bed, and the sieved soil is used to make artificial grass The specific process of the bed includes the following ste...

Embodiment 3

[0051] In this embodiment, the degraded alpine meadow is repaired. The restoration process is as follows: when the temperature reaches above zero degrees Celsius in late spring and early summer from April to May, a rain-proof shed is set up near the alpine meadow block to be repaired to make an artificial meadow bed, and the repair process is completed. Before the alpine meadow defect patch plots, first dig out the soil at this place, and use a 50-mesh sieve to throw away the coarse sand and gravel from the excavated alpine meadow soil, then pass the remaining soil through a 100-mesh sieve, and pass through a 100-mesh sieve. The sieved soil with physical viscosity is used to make the water-retaining layer of the artificial meadow bed, and the silt soil that does not pass the 100-mesh sieve is used to make the nutrient layer and seed layer of the artificial meadow bed, and the sieved soil is used to make artificial grass The specific process of the bed includes the following ste...

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Abstract

The invention provides a hydro-thermal balanced degraded alpine meadow repairing material. The hydro-thermal balanced degraded alpine meadow repairing material comprises a water retention layer, a nutrition layer and a seed layer from bottom to top; the water retention layer is formed by steps of mixing and stirring soil a and bentonite into slurry, pouring the slurry into a mold and pressing and airing the slurry; the thickness of the water retention layer is 3 cm-8 cm; the nutrition layer is formed by steps of cutting elymus nutans and oats into long sections, adding fermented yak manure and chemical fertilizer, mixing and stirring the materials with the soil b to form slurry, pouring the slurry to the upper part of the layer, and naturally airing the slurry; the thickness of the nutrition layer is 8 cm-15 cm; the seed layer is formed by steps of stirring and mixing seeds and soil c and irrigating the mixture on the upper portion of the nutrition layer; and the thickness of the seed layer is 2 cm-3 cm. The repairing material can effectively solve the problem of water heat loss of alpine meadow damaged plaques, can effectively maintain the hydro-thermal balance of meadow layers, and is very expected to be applied to repairing of alpine meadow damaged plaques on a large scale.

Description

technical field [0001] The invention belongs to the technical field of restoration materials for degraded alpine meadows, in particular to a restoration material for degraded alpine meadows with water and heat balance. Background technique [0002] As the "third pole of the world", the Qinghai-Tibet Plateau has created a unique alpine ecosystem due to its high altitude. The alpine grassland on the Qinghai-Tibet Plateau accounts for about one-third of the national grassland area. The alpine grassland is not only the basis for local animal husbandry and herdsmen’s life, but also has a variety of ecological functions such as: windbreak and sand fixation, water conservation, water and soil erosion prevention, climate regulation, maintenance Biodiversity and carbon sequestration are important ecological security barriers for my country and Southeast Asia. The climate conditions on the Qinghai-Tibet Plateau are harsh and the ecological environment is extremely fragile. Once damage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G20/10A01B79/02A01C21/00
CPCA01G20/10A01B79/02A01C21/005
Inventor 高清竹余沛东胡国铮干珠扎布
Owner INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
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