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Method for restoring desertified grassland

A restoration method and grassland technology, applied in botany equipment and methods, lawn growth, horticulture, etc., can solve the problems of poor pertinence of desertified grassland, poor restoration effect of sandy grassland, and single treatment method, so as to improve the prevention of desertification Efficiency, efficiency improvement and effect, effect of improving utilization rate

Inactive Publication Date: 2018-10-09
INNER MONGOLIA M GRASS ECOLOGY & ENVIROMENT GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing desertification prevention and control technology mainly adopts the method of focusing on the construction of grassland, and the control method is single, which is not very specific for desertified grassland, and the restoration effect of desertified grassland is not good

Method used

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  • Method for restoring desertified grassland
  • Method for restoring desertified grassland
  • Method for restoring desertified grassland

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] ① Select 10 test plots in the Uragai management area according to different degrees of desertification, with a total area of ​​2,000 mu. 1814 acres. Investigate the main area, grass height, grass density, grass coverage and native plants before treatment. The main native species in the research area through local surveys include Leymus chinensis (Trin.) Tzvel), Elymus dahuricus Turcz, Agropyroncristatum (Linn.) Gaertn, etc., and Artemisia frigida Willd. Sp. Pl), lentils (Pocockiaruthenia (L.) Boiss.), etc.

[0066] Table 1 Survey of basic situation of desertified grassland sample land before treatment

[0067]

[0068]

[0069] Combined with the characteristics of local wind-eroded and sandy grasslands, the test area is divided, mainly including wind-eroded pits, steep slope areas, gentle slope areas, and flat areas. According to the degree of desertification of different terrains, according to wind erosion pits, steep slopes, gentle slope areas, flat areas, et...

Embodiment 2

[0094] A 10-acre untreated test plot near Mazong Mountain was selected. The only difference between it and Example 1 is that in the supplementary sowing of the sandy land, the Leguminous family was arranged in a swastika shape, and the ratio of gramineous plants was 1:1.3 for annuals and perennials. According to the ratio of perennials and annuals of 1.7:1, legumes are spread in the gap of the swastika shape, and the ratio of legumes to grasses is 1:2.5.

[0095] After one year of treatment in 2016, the results showed that the density in 2017 was significantly higher than that in 2015 and 2016 (P<0.05), the average coverage increased from 3.7 to 37.33, and the density in 2016 and 2017 was significantly higher than that in 2015 (P <0.05), meanwhile, compared with Example 1, the therapeutic effect provided by this example is better.

[0096] To sum up, the desertified grassland restoration method provided by the embodiment of the present invention is highly targeted, and at the ...

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Abstract

The invention relates to a method for restoring desertified grassland, and relates to the field of ecological environment protection. The method for restoring the desertified grassland comprises thatafter fencing enclosure is conducted at the edge of the desertified grassland, sand barriers with a porosity of 25-50% are arranged at the positions, on the windward slopes of sand dunes and perpendicular to a main wind direction, of the desertified grassland in a fence, and after the sand barriers are set up, sand reseeding is conducted in windbreak areas of the sand barriers; cutting is forbidden for at least 3 years after sand reseeding is carried out, and grazing is prohibited for at least 5 years after sand reseeding is conducted. Ecological restoration is adopted as an ultimate goal, comprehensive utilization of meadows obtained after restoration is taken into account, and fencing enclosure, arrangement of the sand barriers, sand reseeding, cutting prohibition and other conditions are combined, so that the treatment effect is improved effectively.

Description

technical field [0001] The invention relates to the field of ecological environment protection, and in particular to a method for restoring desertified grassland. Background technique [0002] Grassland is the ecosystem type with the largest land area in my country, with a total area of ​​about 400 million hectares. Since the last century, under the superimposed influence of various factors such as global climate change and human disturbance, my country's grassland has experienced obvious degradation and desertification, which directly or indirectly threatens the survival and life of human beings. According to statistics, about 90% of the available natural grasslands in the country have been degraded to varying degrees. The degraded grassland area accounts for 85.4% of the total grassland area, the desertification area accounts for 35.6%, and the potential desertification area accounts for 46.7%. At the end of the 20th century, the direct economic loss caused by desertifica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G20/00A01G13/02
CPCA01G13/0225A01G20/00
Inventor 陈翔邢旗纪大才刘亚玲闫晓红张健王瑞峰杨红艳郑丽娜杜宇凡
Owner INNER MONGOLIA M GRASS ECOLOGY & ENVIROMENT GRP CO LTD
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