Device for root-leave undamaged separation culture of ocean-land submerged plants and method

Abstract

The invention discloses a device for root-leave undamaged separation culture of ocean-land submerged plants, comprising an upper cavity for culturing plant leaves and terrestrial stems and a lower cavity which is arranged below the upper cavity and used for culturing underground stems and roots. The upper cavity and the lower cavity are separated through a bottom plate on which a plurality of separation holes for the penetration of plants are arranged; the upper cavity is in an upward opening structure; and the lower cavity is in a closed structure. The device can realize that water layers ofthe upper cavity and the lower cavity are not leaked under the condition of maintaining the healthy survival of submerged plants, and has good simulation effect, convenient use, simple and easy dismounting and repeated use. The invention further provides a culture method of the device for root-leave undamaged separation culture of ocean-land submerged plants.

Description

technical field [0001] The invention relates to a device and method for realizing the separation of the aboveground parts (leaf and aboveground stem) and the underground part (underground stem and root) of submerged plants. (such as C, N, P, Si and other biogenic elements) or toxic and harmful substances (such as heavy metals and other pollutants) uptake and material transfer laws. Background technique [0002] The submerged plants referred to in the present invention include higher underwater angiosperms with rhizome-leaf differentiation and large herbaceous plants with root-leaf differentiation in freshwater and seawater. [0003] Unlike other primary producers in the water body, such as planktonic algae and epiphyte algae, algae mainly absorb nutrients in seawater, while submerged plants can absorb nutrients in the water column through aboveground leaves and sediments through underground roots. Nutrients in interstitial water. Therefore, the study of the process of nutr...

AI Technical Summary

Problems solved by technology

The process and contribution of submerged plant leaves and roots to nutrient uptake under different water column and sediment nutrient environments have not been resolved.

[0004] At present, there is no patent for the separation of roots and leaves of submerged plants. Faraday (1979) used silicone plugs to wrap the erect stems of the seaweed Zostera marina, and then sealed them with silicone sealing adhesive RTV162; Fabris (1982) Using silicone grease (Silicone Grease), Lyngby (1982) and Brix (1985) using low-melting point paraffin, Stapel (1996) using silica gel and low-melting point paraffin as materials for filling the separation holes, but none of them solved the upper chamber water column well Difficulties with leakage into the lower chamber

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