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Integrated root sampling method for high-cold desert area

A sampling method and root system technology, applied in the direction of sampling devices, etc., can solve the problems of manpower, material and financial resources, plant damage, ecological environment consequences, etc., and achieve the effect of reducing the large-scale destruction of vegetation.

Inactive Publication Date: 2018-12-18
CHINESE ACAD OF FORESTRY
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  • Abstract
  • Description
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Problems solved by technology

Therefore, if traditional methods are used for root sampling in such areas, and no corresponding root sampling plan is formulated according to the current vegetation conditions, or the damaged plantation trees are not remedied in time, it will bring serious damage to the ecological environment of the area. serious consequence
[0003] In the existing root system sampling method, for the study of the underground ecosystem of typical sand-fixing vegetation of different forest ages in the alpine sandy area, large-scale excavation methods are used to obtain samples, which will cause irreversible damage to the plants and consume a lot of manpower, material and financial resources.

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  • Integrated root sampling method for high-cold desert area
  • Integrated root sampling method for high-cold desert area
  • Integrated root sampling method for high-cold desert area

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specific Embodiment approach

[0016] The root comprehensive sampling method in alpine sandy region of the present invention, its preferred embodiment is:

[0017] Optimization of sampling methods for sampling points of typical sand-fixing plants in areas similar to high sea sand areas, including:

[0018] Reduce the surface sampling area of ​​the soil column sampling method to 200 to 100cm×100cm;

[0019] Determine the horizontal sampling radius of the shrub original soil root system sampling method as 20cm to 30cm;

[0020] The horizontal sampling radius of the arbor undisturbed soil root sampling method is determined to be 100cm to 150cm.

[0021] For the typical sand-fixing vegetation in the inter-dune lowlands, the typical sand-fixing vegetation willow willow, willow salix, willow tamarix and poplar small leaves, the surface sampling area of ​​the soil column sampling method is 200 cm from east to west × 100 cm from north to south, and the sampling depth is 0-20, 20-40, 40-60 and 60-80cm, the ground ...

specific Embodiment

[0029] Such as figure 1 As shown, a soil column root sampling method suitable for high-cold sandy areas is selected from the artificial forests of Wuliu plantation 1, Salix salix plantation 2, small spike willow plantation 3 and small-leaf poplar plantation The average plant height and the uniform crown width of willow, salix, willow and small leaf poplar plants are used as standard plants, and the obvious branches of the plants are the center of the circle, and the radius is 20cm to determine the central area of ​​the aboveground part of the soil column sampling method (this area is not Take soil samples), use a tape measure and start from the center to the east and west directions 100cm each as the east-west boundary, use a tape measure to start from the center to the south and north directions 50cm each as the north-south boundary, and finally get the surface centered on the plant Length × width = 200 × 100cm sampling area, divide the sampling area into 20 × 20cm sampling u...

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Abstract

The invention discloses an integrated root sampling method for a high-cold desert area. Sampling mode optimization of sampling points is carried out on typical sand-fixing plants in an area similar toa high-altitude desert area, and the method specifically comprises the steps of reducing the surface sampling area of a soil column sampling method to (200-100)cm*100cm; determining a horizontal sampling radius of a shrub undisturbed soil root sampling method to be 20-30cm; and determining the horizontal sampling radius of an arbor undisturbed soil root sampling method to be 100-150cm. A root profile soil column excavation method is combined with the undisturbed soil root sampling methods, so that the integrated root sampling method is an integrated sampling method for different horizontal sampling radiuses of roots and different vertical sampling depths of the roots. The root sampling experimental research can be smoothly carried out through small sample sampling, furthermore, massive destruction of vegetation of an existing vulnerable ecological environment is reduced and the vegetation of a protection forest can be quickly restored.

Description

technical field [0001] The invention relates to a root system sampling technique, in particular to a root system comprehensive sampling method in an alpine sandy region. Background technique [0002] During the root sampling process, the ecological environment around the vegetation will be damaged and disturbed to varying degrees, especially in some environmentally fragile and sensitive areas, the damage caused to soil and vegetation by conventional methods is almost irreversible. For example, the altitude of Qinghai is between 2800 and 3400m. Compared with other desertification areas, its biggest characteristics are high altitude, low temperature, less accumulated temperature, and short frost-free period. The ecosystem is very fragile and sensitive, and the vegetation types are single. Artificial afforestation is one of the sandy areas with the harshest natural environmental conditions. Therefore, if traditional methods are used for root sampling in such areas, and no corr...

Claims

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Application Information

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IPC IPC(8): G01N1/08
CPCG01N1/08
Inventor 贾志清何凌仙子包岩峰张友焱李清雪冯莉莉石坤刘涛乌日娜杨凯悦戴捷陈娟杨德福赵雪彬
Owner CHINESE ACAD OF FORESTRY
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