Application of rectangular glass container in screening plants adapting to karst landform and screening method of plants

Abstract

The invention discloses application of a rectangular glass container in screening plants adapting to karst landform and a screening method of the plants. The side face of the rectangular glass container for transplanting plant seedlings is wrapped with opaque heat-insulating film, the rectangular glass container is made of transparent organic glass and is in a cuboid shape, and the bottom of the rectangular glass container is provided with water-permeable holes; when the bottom surface is rectangular, the rectangular glass container serves as a shallow basin for transplanting the plants, and when the bottom surface is square, the rectangular glass container serves as a deep basin for transplanting the plants. In the test process, the side faces of the shallow basin and the deep basin are wrapped with opaque heat-insulating film. The device can simultaneously compare and analyze response characteristics of plant root growth to vertical and horizontal space limitations, is suitable for judging plant species suitably growing in karst areas where soil layer distribution is extremely discontinuous and soil thicknesses are different, and provides a technical means for vegetation restoration of a degraded ecosystem of the areas, in particular to the selection of afforestation tree species according to the principle of adaptation to local conditions.

Description

technical field [0001] The invention belongs to the field of plant root growth characteristics, and more specifically relates to the application of a rectangular glass container in screening plants adapted to karst landforms, and also relates to a screening method for screening plants adapted to karst landforms, which is suitable for studying plants suitable for karst landforms. Select transplanted plants suitable for karst landforms for environmental protection and garden departments. Background technique [0002] In the karst area, which accounts for about 1 / 3 of my country's land area, the soil layer is shallow and discontinuous, and the underlying weathered bedrock is rich in cracks and pipelines. The plant growth environment is obviously different from that in non-karst areas. Early studies believed that karst plants generally need to obtain water and nutrients from the weathered bedrock layer through deep penetration of the root system, so as to alleviate the limitatio...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of rectangular glass container in the application of screening and adapting to the plant of karst topography, utilize this test device to be able to under the condition that fully characterizes the characteristic of karst typical habitat, study the vertical and horizontal space limitation of plant root extension It solves the problem of low effectiveness of existing methods in studying the root growth characteristics of different karst plants, and can provide an effective means for effectively screening plants adapted to karst landforms

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