Groundwater buried depth abductive technique of desert plant seedling root system growth

A technology of seedlings and technology, applied in the research field of diving depth and plant root ecology, can solve the problems of the ecological characteristics of camel thorn root system and other problems

Inactive Publication Date: 2009-03-18
XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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  • Application Information

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Problems solved by technology

However, it is very difficult to study the ecological characteristics of camel thorn root system under natural environmental conditions, because the underground part of ...

Method used

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  • Groundwater buried depth abductive technique of desert plant seedling root system growth
  • Groundwater buried depth abductive technique of desert plant seedling root system growth
  • Groundwater buried depth abductive technique of desert plant seedling root system growth

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Embodiment

[0030] Divide the 120-square-meter test field into two groups of test areas; build a brick-concrete test pool with a thickness of 30 cm in the pool wall 1; set up pier 2 on the bottom to ensure the flow of groundwater. The above laying aperture is the high-quality steel wire mesh 3 of 1 centimeter; Laying diameter is the pebble of 2 centimeters on the top of steel mesh 3, and thickness is 3 centimeters; 2 cm. To ensure that stones will not fall into the water; on the one hand, this layer must ensure that groundwater can be absorbed by the soil and slowly enter the soil, on the other hand, it must ensure that soil particles will not fall into the water, so as to simulate the phreatic level in the natural environment as much as possible ; Fill in the required test soil layer by layer above the stones, that is, every 20 centimeters of soil filled in should be compacted with a mechanical device until the soil is filled to the same level as the upper surface of the community. In t...

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Abstract

The present invention provides a buried depth of phreatic water level inducement technical method for the root system growth of the young seedling of desert plants. A constructed netting testing tank consists of tank wall, column piers, a steel wire netting and a water injection pipe and is filled with stones and earthwork, wherein, the tank wall is ensured to be watertight; the bottom of the tank is distributed with the column piers to ensure that the ground water can flow; the upside of the column piers is laid with the steel wire netting; the upside of the steel wire netting is laid with the stones firstly and then is filled with the earthwork layer by layer; a ground water table control testing area which has the thicknesses of earth layers of 100cm, 150cm, 200cm, 250cm and 300cm respectively is arranged to ensure that the ground water table is always kept at 45 to 55cm. The technical method testifies the relation between the working depth of the vertical root of the young seedling and the growth speed of the vertical root under the condition of different buried depths of phreatic water level, testifies the changing characteristic of the root system state of the young seedling along with the change of the ground water level and the water content of soil, testifies the distribution rule of the quality and the surface area of the root system of the young seedling in soil space and testifies the biomass allocation trend of the young seedling under the condition of different buried depths of phreatic water level. The technical method has reasonable design and strong operability. The testing tank can be molded by casting concrete or be made by laying with waterproof material in a concrete-brick structure.

Description

technical field [0001] The invention relates to the research on the ecology of plant roots, in particular to the technique of diving depth, and in particular to a technique of induction of diving depth suitable for the growth of roots of desert plant seedlings. Background technique [0002] With the deepening of ecological exploration and research, ecologists have increasingly realized that in the study of ecosystem structure, function and process, the uncertain element is the root system. Expansion of ecosystem theory and practice research. As we all know, the root system is an important functional organ for plants to absorb water and nutrients. An important feature of plants in arid areas during the process of adapting to the environment is to have a huge root system. Since the root system grows underground, it is difficult to study. Therefore, the root system of most plants Research is still blank. At present, there are patent No. 2006101340701 for the evaluation method...

Claims

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Application Information

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IPC IPC(8): A01G7/06A01G9/02A01G1/00
Inventor 曾凡江郭海峰刘波曾杰雷加强邢文娟李向义李利张希明
Owner XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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