Testing apparatus and testing method for researching root system to deal with vertical obstacles

Abstract

The invention relates to a testing apparatus for researching a root system to deal with vertical obstacles. The apparatus comprises a transparent cylindrical container for plant nursery stock growth, a plurality of transparent partition layers are arranged in the cylindrical container in the vertical direction to separate the interior of the cylindrical container into a plurality of layered regions for being filled with culture substrates, through holes for enabling every two vertically-adjacent layered regions to be communicated are formed in each partition layer, and testing holes are formed in the position, corresponding to each layered region, of the side wall of the cylindrical container. Meanwhile, the invention further provides a testing method for researching the root system to deal with the vertical obstacles. The testing device for researching the root system to deal with the vertical obstacles is simple in overall structure and low in manufacturing cost, material taking and manufacturing are convenient, the natural environment is simulated, through the device, how the root system starts the morphological physiological response strategy so as to deal with the growth adversity is researched, especially, the capability of the test plant root system for dealing with the solid obstacles in the vertical direction is researched, and the afforestation success rate under the difficult site conditions is improved.

Description

Technical field [0001] The invention relates to a test device and a test method for studying root response to vertical obstacles, and belongs to the research field of afforestation technology under difficult site conditions. Background technique [0002] In recent years, my country’s forest coverage rate has increased substantially, and some areas where afforestation is easier have basically completed afforestation tasks. However, with the rapid development of society and economy, the destruction of forest land by humans is still very serious, forming large areas of difficult stone sites such as abandoned mines, bare mountains, quarries, and construction waste landfills. How to improve the success rate of afforestation on these difficult sites and increase the green area is an urgent problem for forestry workers. Take mine abandoned land as an example. Humanity’s demand for mineral resources is increasing. The exploitation of mineral resources will inevitably cause damage to veg...

AI Technical Summary

Problems solved by technology

Abandoned mine land not only brings a series of environmental problems such as heavy metal pollution, soil erosion, and aggravated hidden dangers of geological disasters, but also leads to a low survival rate and preservation rate of afforestation, mainly because the root system often encounters soil solids such as rocks during the growth process Obstacles, causing the nutrients and water absorbed by the roots cannot meet the growth needs of the aboveground parts, resulting in slow growth of the forest stand, poor stability, low quality of the stand, and unable to exert higher benefits

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