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A Method for Preventing Second Occurrence of Black Soil Beach

A secondary generation, black soil beach technology, applied in the field of soil preparation, agriculture, application, etc., can solve the problem of no consideration of the recurrence of poisonous weeds, and achieve the effect of saving repair costs

Active Publication Date: 2020-08-04
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason for the "secondary occurrence of black soil beach" is that there are certain technical problems in the process of artificial reconstruction, the recurrence of poisonous weeds is not considered, and there is a lack of certain control technology in the process of artificial vegetation management, which promotes the gradual succession of artificial vegetation and guides its close natural recovery

Method used

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  • A Method for Preventing Second Occurrence of Black Soil Beach
  • A Method for Preventing Second Occurrence of Black Soil Beach
  • A Method for Preventing Second Occurrence of Black Soil Beach

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A method for preventing secondary occurrence of black soil beach, comprising the steps of:

[0048] A. Plot sampling

[0049] Randomly select 10 plots, and each plot is divided into 0-5cm, 5-10cm and 10-20cm for soil sampling at different depths, and the soil samples are germinated and cultivated;

[0050] B. Determine the content of poisonous weeds in the plot

[0051] Detect the proportion of poisonous weed species in the soil seed bank in soil samples at different depths and take the soil at different depths, calculate the average of the proportion of poisonous weed seeds, and distinguish two types of poisonous weed seeds with a proportion of more than 70% and less than 70%, The soil with the proportion of poisonous weed seeds below 70% will not be treated temporarily;

[0052] C. to plow the soil

[0053] Plow the soil where the proportion of poisonous weed seeds in the soil seed bank is more than 70%, and the plowing depth is 20cm;

[0054] D. Soil abandonment ...

Embodiment 2

[0065] A method for preventing secondary occurrence of black soil beach, comprising the steps of:

[0066] A. Plot sampling

[0067] 30 plots were randomly selected, and soil sampling was carried out at different depths of 0-5cm, 5-10cm and 10-20cm on each plot, and the soil samples were germinated and cultivated;

[0068] B. Determine the content of poisonous weeds in the plot

[0069] Detect the proportion of poisonous weed species in the soil seed bank in soil samples at different depths and take the soil at different depths to calculate the average of the proportion of poisonous weed seeds, and distinguish two types of poisonous weed seeds with a proportion of more than 70% and less than 70%. The soil with the proportion of poisonous weed seeds below 70% will not be treated temporarily;

[0070] C. to plow the soil

[0071] Plow the soil where the proportion of poisonous weed seeds in the soil seed bank is more than 70%, and the plowing depth is 20cm;

[0072] D. Soil ...

Embodiment 3

[0083] A method for preventing secondary occurrence of black soil beach, comprising the steps of:

[0084] A. Plot sampling

[0085] 20 plots were randomly selected, and soil sampling was carried out at different depths of 0-5cm, 5-10cm and 10-20cm on each plot, and the soil samples were germinated and cultivated;

[0086] B. Determine the content of poisonous weeds in the plot

[0087] Detect the proportion of poisonous weed species in the soil seed bank in soil samples at different depths and take the soil at different depths to calculate the average of the proportion of poisonous weed seeds, and distinguish two types of poisonous weed seeds with a proportion of more than 70% and less than 70%. The soil with the proportion of poisonous weed seeds below 70% will not be treated temporarily;

[0088] C. to plow the soil

[0089] Plow the soil where the proportion of poisonous weed seeds in the soil seed bank is more than 70%, and the plowing depth is 20cm;

[0090] D. Soil ...

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Abstract

The invention relates to the technical field of grassland management, in particular to a method for preventing secondary generation of black soil land. The method comprises the following steps: sampling soil at different depths of 0-5 cm, 5-10 cm and 10-20 cm on each plot and germinating soil samples for cultivation; taking out contents of poisonous weeds at different depths to calculate the average value and classifying the soil samples into two types with the content of the poisonous weeds respectively being more than 70% and less than 70%, and distinguishing and processing the plots by defining different depths and contents of poisonous weeds, wherein soil with the content of below 70% of poisonous weeds is not processed temporarily and naturally grows, and soil with the content of over 70% is artificially plowed for multiple cropping to restore the black soil land. By changing a conventional mode solely depending on experience-based judgment, the novel mode is highly targeted and helps greatly save restoration cost. After soil is turned over, artificial plant seeds are sowed after abandoned cultivation for 2 to 3 years. Soil is turned over for 1 to 2 times each year. By plowing and abandoning cultivation, the biological activity of poisonous weeds is reduced, which creates a favorable condition for restoration of land plants in the later period.

Description

technical field [0001] The invention relates to the technical field of grassland ecology, in particular to a method for preventing secondary occurrence of black soil beaches. Background technique [0002] "Black soil beach" refers to the alpine vegetation distributed between 3,500 meters and 4,500 meters above sea level on the Qinghai-Tibet Plateau. Under the effects of climate, grazing, water erosion, freeze-thaw, etc., the degradation of the original indicators almost disappears, the grass mat layer peels off and disappears, and there is no vegetation in the cold season The cover is bare soil, and the secondary bare land landscape where poisonous weeds breed in summer is also called the secondary community of poisonous weeds. Because the bare surface is black soil, it is commonly known as "black soil beach" or "black soil type degraded grassland". At present, the total area of ​​the black soil beach in the Sanjiangyuan area has reached more than 70 million mu. The black so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 尚占环董全民周华坤董世魁施建军邵新庆丁路明李世雄王彦龙汪海波贺有龙马玉寿龙瑞军
Owner LANZHOU UNIVERSITY
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