Strip greening method of arid and semi-arid lands

A technology in semi-arid and regional areas, applied in the field of environmental greening in arid and semi-arid areas, can solve the problems of ignoring the ecological law of plant population level, treating the symptoms but not the root cause, and not being suitable for promotion, so as to achieve broad market space and application prospects, and improve the ecology The effect of low environment, afforestation cost and later maintenance cost

Inactive Publication Date: 2011-01-12
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some existing improved methods, such as container seedling method, alien soil afforestation method, earth-burying seedling overwintering method, etc., either treat the symptoms but not the root cause, or are costly, and are not suitable for widespre

Method used

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  • Strip greening method of arid and semi-arid lands
  • Strip greening method of arid and semi-arid lands
  • Strip greening method of arid and semi-arid lands

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

Example 1

Referring to Figure 1, when greening slopes in arid and semi-arid areas, the greening area is divided into rain-harvesting belt 2 and green belt 1, which are arranged alternately. Plant green plants and trees in green belt 1 and cover with plastic film on rain-harvest belt 2. The ratio of rain-harvest belt 2 to green belt 1 can be calculated by the formula: where x is the average annual rainfall and M is rain-harvest belt 2. , L is the width of the green belt 1.

The experiment was conducted in Xinyuan Township, Huining County, Gansu Province from April to September 2008. The average annual rainfall in this area was 230mm. Choose a slope with a slope of about 8-15% as the test site. The width of the green belt 1 is set as 1m. The width of the rain-harvesting belt 2 can be calculated by the formula to be 1.2m, and the length of the green belt and rain-harvesting belt are both 5m. Set up two rain-harvesting belts and two green belts in each test plot. The rain-harvesti...

Example Embodiment

Example 2

Referring to Figure 2, when greening slopes in arid and semi-arid areas, the greening area is divided into rain-harvesting belt 2 and green belt 1. Greening vegetation is planted in green belt 1, and plastic film is covered in rain-harvesting belt 2. The ratio of rain-harvesting belt 2 to green belt 1 can be obtained by the formula: where x is the average annual rainfall, M is the width of rain-harvesting belt 2, and L is the width of green belt 1.

From April 1st to September 30th, 2009, the QYJY-501 portable automatic artificial rainfall simulator was used to simulate the artificial rainfall in the greenhouse of the Zijingang campus of Zhejiang University. The average annual rainfall was set at 350mm, and the formula was introduced: The theoretical value of the ratio of the width of the rain collecting belt 2 to the width of the green belt 1 is 0.22. Put the soil in a plastic container with a size of 900×680×660mm and a volume of 400L, and set the slope to 25%, that...

Example Embodiment

Example 3

The method of greening area planning is the same as in Example 1. From April 1 to September 30, 2009, the QYJY-501 portable automatic artificial rainfall simulator was used to simulate artificial rainfall in the greenhouse on the Zijingang campus of Zhejiang University. The rainfall is set at 260mm, and the formula is introduced: The theoretical value of the ratio of the width of the rain-harvesting belt 2 to the width of the green belt 1 is 0.78. Put the soil in a plastic container with a size of 900×680×660mm and a volume of 400L, and set the slope to 25%, that is, the thickness of the highest part of the soil is 62.5cm and the thickness of the lowest part is 40cm, which simulates the area to be greened. When performing strip greening, the width of the green belt 1 is set as 20 cm, and the width of the rain-collecting belt 2 can be calculated as 15.6 cm by the formula. Set up two rain-harvesting belts and two green belts in the above-mentioned turnover box. The rai...

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Abstract

The invention provides a strip greening method of arid and semi-arid lands. When the sloping fields of the arid and semi-arid lands are greened, the greening area is divided into a rain collection belt and a green belt, wherein greening vegetation is planted on the green belt, and a plastic film is covered on the rain collection belt; the ratio of the rain collection belt and the green belt can be solved by a formula, wherein x is annual average rainfall, M is the width of the rain collection belt, and L is the width of the green belt. The invention can improve the greening effects in the arid and semi-arid lands, controls soil degradation speed, improves local ecological environment and improves the carbon sink ability of the green belt. Meanwhile, the invention has the advantages of low forestation cost and later-stage maintenance cost and the like, and has favorable ecological, social and economic value and wide market space and application prospects.

Description

technical field The invention belongs to the field of environmental greening and relates to an environmental greening method in arid and semi-arid areas. Background technique When carrying out environmental greening, the traditional greening method is to evenly plant green plants and trees. Practice shows that traditional greening methods are not ideal in arid and semi-arid areas, and may achieve certain results in the short term. But in the long run, the survival rate of green vegetation is generally low. Even if they can survive, they will grow slowly under the limitation of available water resources and become "little old trees". In individual areas, it even leads to the decline of groundwater, causing serious damage to the local ecological environment. At present, some existing improved methods, such as container seedling method, alien soil afforestation method, embedding seedling overwintering method, etc., either treat the symptoms but not the root cause, or are cost...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01G25/00
Inventor 王根轩欧晓彬贾昕甘毅
Owner ZHEJIANG UNIV
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