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Soil seed bank donation method for recover of deteriorated grassland

A technology of soil seed bank and degraded grassland, applied in the field of soil seed bank donation for the restoration of degraded grassland, can solve the problem of ignoring the role of other species

Inactive Publication Date: 2017-12-15
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current vegetation community construction in restoration areas, people generally tend to select and match the dominant plant species in the restoration area, often ignoring the role of other species

Method used

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  • Soil seed bank donation method for recover of deteriorated grassland
  • Soil seed bank donation method for recover of deteriorated grassland

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A soil seed bank donation method for degraded grassland restoration, comprising the following steps:

[0038] A. Sampling survey

[0039] Randomly select 10 plots, and take soil samples at different depths of 0-5cm and 5-10cm on each plot. The soil samples are germinated and cultivated, and the distance between samples is at least 2 meters;

[0040] B. Determine the content of poisonous weeds in the plot

[0041] Soil primary vegetation coverage below 20% is degraded area, and primary vegetation coverage of 60% is seed bank donation area;

[0042] C. Soil from the seed bank donation area

[0043] The donation area of ​​the seed bank is divided into a soil borrowing area and a reserved area. 2 , the distance between adjacent soil borrowing areas is 10m, and reserve areas are set around the soil borrowing areas;

[0044] D. mixed soil

[0045] Retrieve the soil for crushing and mixing, and the covering soil will germinate naturally in the degraded area. The moisture ...

Embodiment 2

[0047] A soil seed bank donation method for degraded grassland restoration, comprising the following steps:

[0048] A. Sampling survey

[0049] 30 plots were randomly selected, and soil samples were taken at different depths of 0-5cm and 5-10cm on each plot. The soil samples were germinated and cultivated, and the sampling interval of the samples was at least 2 meters;

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

[0051] Soil primary vegetation coverage below 20% is a degraded area, and primary vegetation coverage of 80% is a seed bank donation area;

[0052] C. Soil from the seed bank donation area

[0053] The donation area of ​​the seed bank is divided into a soil borrowing area and a reserved area. 2 , the distance between adjacent soil borrowing areas is 15m, and reserve areas are set around the soil borrowing areas;

[0054] D. mixed soil

[0055] Retrieve the soil for crushing and mixing, and the covering soil will germinate naturally in the d...

Embodiment 3

[0057] A soil seed bank donation method for degraded grassland restoration, comprising the following steps:

[0058] A. Sampling survey

[0059] 20 plots were randomly selected, and soil samples were taken at different depths of 0-5cm and 5-10cm on each plot, and the soil samples were germinated and cultivated, and the sampling interval of the samples was at least 2 meters;

[0060] B. Determine the content of poisonous weeds in the plot

[0061] Soil primary vegetation coverage below 20% is degraded area, and primary vegetation coverage of 70% is seed bank donation area;

[0062] C. Soil from the seed bank donation area

[0063] The donation area of ​​the seed bank is divided into a soil borrowing area and a reserved area. 2 , the distance between adjacent soil borrowing areas is 20m, and reserve areas are set around the soil borrowing areas;

[0064] D. mixed soil

[0065] Retrieve the soil for crushing and mixing, and the covering soil will germinate naturally in the d...

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Abstract

The invention relates to the technical field of grassland ecology, and especially relates to a soil seed bank donation method for recover of deteriorated grassland. Soil sampling is performed at different depth, germination cultivation is performed on soil samples, and sampling spacing distance of the samples is at least 2m; 60% or more of soil seeds are generally centralized within 5cm, 90% or more of the soil seeds are centralized within 10cm, and the soil seeds are ensured to be effectively collected during sampling and soil taking. Zones of which the cover degree of soil native vegetation is lower than 20% are deteriorated zones, and zones of which the cover degree of soil native vegetation is 60-80% are seed bank donation zones; and the soil native vegetation is utilized to restore the deteriorated zones, seeds and fertilizer are not added artificially, native zone vegetation characteristics are guaranteed, native vegetation ecology is convenient to keep, and invading and disturbing of foreign vegetation are reduced. The seed bank donation zones are divided into soil taking zones and reserve zones, soil taking depth in each soil taking zone is 10cm, and the soil taking area is 2m<2>, spacing between adjacent soil taking zones is 10m, and the periphery of each soil taking zone is provided with the reserve zones; and the seed bank donation zones still keep self vegetation ecology, and therefore ecological change of the seed bank donation zones is prevented.

Description

technical field [0001] The invention relates to the technical field of grassland ecology, in particular to a soil seed bank donation method for restoring degraded grassland. Background technique [0002] Ecological restoration of degraded grasslands is a major task of my country's current ecological construction, involving 90% of the current grassland area. The correct restoration technology of degraded grassland is not only of great value to the maintenance of grassland production and ecological functions, but also has important reference significance for the current ecological construction. Grassland occupies 51% of the total land area of ​​our country. It is the means of subsistence for the survival of many ethnic groups in our country. It is also an important guarantee for our country's water and soil conservation, biodiversity protection, and national ecological security. At present, due to the over-exploitation and utilization of grasslands in my country in the past h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01B79/00
CPCA01B79/00A01G22/00
Inventor 尚占环周华坤董全民施建军丁路明郭瑞英龙瑞军
Owner LANZHOU UNIVERSITY
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