Method for testing influence of different carbon dioxide concentrations on growth of submerged plants

Abstract

The invention discloses a method for testing the influence of different carbon dioxide concentrations on growth of submerged plants, which is an ecological test method and belongs to the field of ecological test methods. A research station is established beside a natural lake, which collects water and bottom sediment in the lake as test raw materials and performs test research on the influence ofmultiple groups of different carbon dioxide concentrations on the growth of submerged plants in the condition of ensuring the same growth factors of the submerged plants. In the test, the submerged plants are cultivated with a specialized incubator. The increment of biomass is calculated finally, and the materials are convenient and quick to obtain; the influence of a genetic factor is avoided; the actual growing environment of the submerged plants can be really and reasonably stimulated; and the illumination and temperature conditions of the incubator can be full-manually controlled, thus being favorable for differential control on multiple environmental factors.

Description

technical field [0001] The invention relates to an ecological test method, in particular to a test method for analyzing the influence of different carbon dioxide concentrations on the growth of submerged plants, and belongs to the field of ecological test methods. Background technique [0002] Carbon dioxide is the substrate of plant photosynthesis and an important environmental factor that constitutes the plant habitat. With the development of modern industry and agriculture and the intensification of human activities, the concentration of carbon dioxide in the atmosphere has and will continue to increase. This trend will have an important impact on plant growth and development, and will eventually affect the human living environment. Submerged plants are an important part of the aquatic ecosystem. They have the functions of purifying water quality, increasing dissolved oxygen in water, and inhibiting the growth of algae. They play an important role in regulating the mater...

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Problems solved by technology

At present, studies on the effects of elevated carbon dioxide concentrations on plant growth are mainly focused on terrestrial plants, while research on the effects on submerged plants is rarely involved. Sporadic related reports are also carried out in laboratories. The same light conditions were used to simulate the growth environment of submerged plants (Xie Yonghong et al., CO 2 The impact of elevated concentration on the phenotype and physiological and biochemical characteristics of the submerged plant Paleopsis spp., Acta Plant Ecology, 2003), there is a certain gap between the artificially created submerged plant habitat conditions in the laboratory and the actual situation, so the conclusions obtained cannot be It is debatable to accurately and truly reflect the impact of elevated carbon dioxide concentration on the growth of aquatic plants, especially submerged plants

Therefore, there is still a lack of more convincing research methods for the effects of different carbon dioxide concentrations on the growth of submerged plants.

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