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A method of ecological utilization of wind and snow flow in Mongolian plateau grassland

A snowstorm, ecological technology, applied in the fields of land preparation methods, applications, agricultural machinery and implements, etc.

Active Publication Date: 2021-12-28
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

Wind and snow flow is a precious water resource in grassland areas, and there are no relevant reports on its ecological utilization

Method used

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  • A method of ecological utilization of wind and snow flow in Mongolian plateau grassland

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] a. Choose a location with open and flat terrain;

[0016] b. Along the direction perpendicular to the local prevailing wind direction in winter, three mechanical wind barriers 1 with a height of 1.2m are arranged in parallel, and the ventilation structure is adopted, the ventilation coefficient is kept at 60%, and the width interval of each mechanical wind barrier 1 is 50m;

[0017] c. Plant 4 rows of native shrub seedlings on the leeward side of each mechanical wind barrier 1 at a position twice the height of the wind barrier, and establish a plant wind barrier 2. The spacing between seedlings and rows in the plant wind barrier 2 is 2m, and the seedlings between the rows are staggered in the shape of a character. Layout, the planting row close to the mechanical wind barrier 1 selects the shrub plant species with a smaller plant type as Caragana 5, and the planting row far away from the mechanical wind barrier 1 selects the taller shrub plant species as Caragana 3;

[0...

Embodiment 2

[0020] a. Choose a site with slightly low-lying terrain.

[0021] b. Arrange five mechanical wind barriers 1 in parallel along the direction that intersects with the local dominant wind direction in winter at a large angle > 60°. Mechanical wind barriers 1 can use various sand barriers for reference. The height is 1.5m, and the ventilation structure is adopted to maintain a ventilation coefficient of 70%. , each mechanical wind barrier 1 has a width spacing of 70m;

[0022] c. At 8 times the height of the wind barrier on the downwind side of each mechanical wind barrier 1, plant 6 rows of native shrub seedlings to establish a plant wind barrier 2. The spacing between the seedlings in the plant wind barrier 2 and the row spacing are 3m, and the seedlings between the rows are staggered in the shape of a character Layout, the planting row close to the mechanical wind barrier 1 selects the shrub plant species Caragana 2 with a relatively short plant type, and the planting row far ...

Embodiment 3

[0025] a. Choose a slightly low-lying area;

[0026] b. Along the direction perpendicular to the local prevailing wind direction in winter, 6 mechanical wind barriers 1 with a height of 1.8m are arranged in parallel, adopt a ventilation structure, the ventilation coefficient is kept at 80%, and the width of each mechanical wind barrier 1 is 100m apart;

[0027] c. At 10 times the height of the wind barrier on the downwind side of each mechanical wind barrier 1, plant 8 rows of native shrub seedlings, and establish a plant wind barrier 2. The plant and row spacing of the plant wind barrier 2 is 3m, and the seedlings between the rows are staggered in the shape of a character. Layout, the planting row close to the mechanical wind barrier 1 selects the shrub plant species Caragana 5 with a relatively short plant type, and the planting row far away from the mechanical wind barrier 1 selects the shrub species Haloxylon 3 with a relatively large plant type;

[0028] d. Make the mecha...

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Abstract

The invention relates to an ecological utilization method of wind and snow flow in Mongolian plateau grasslands. The method involves the combined construction of mechanical wind barriers and plant wind barriers, and is completed by the steps of site selection and spatial layout, mechanical wind barrier setting, and plant wind barrier construction. The method of the present invention can reduce the surface wind speed, effectively intercept the winter wind and snow flow, reduce soil moisture evapotranspiration, improve local soil moisture conditions, form a shrub-grass composite ecosystem with higher vegetation productivity, and improve pasture vegetation. Productivity: Effectively intercept wind and sand flow and seed flow, prevent pasture material loss, form a suitable local microenvironment, provide snow shelter and feed for herds in winter, and improve regional desertification prevention and control capabilities, which is beneficial to wind and snow flow an important method.

Description

technical field [0001] The invention belongs to an ecological construction method, in particular to an ecological utilization method of wind and snow flow in Mongolian plateau grasslands. Background technique [0002] The Mongolian Plateau has less precipitation overall (average about 200mm), ecological fragility, and low grassland productivity. Due to the joint impact of climate drought and human grazing, the grasslands have been seriously degraded, wind erosion and sandstorms are prevalent, and black disasters (droughts, which occur in summer) and White disasters (snow disasters, which occur in early winter or early spring) often occur alternately, posing a serious threat to the property and life safety of herdsmen. [0003] Herbaceous plants on grasslands have shallow root systems (about 30cm) and are poorly able to withstand drought. In years with little rainfall and late, the grasslands are still yellow even in summer; while shrubs have deep root systems (>30cm) and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02A01G17/00
CPCA01B79/02A01G17/005Y02A40/22Y02A40/10
Inventor 李生宇范敬龙王海峰刘国军孟晓于苗佳敏
Owner XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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