Simulation on-site culture system for detecting marine primary productivity through C-14 tracer technique

Abstract

The invention relates to a simulation on-site culture system for detecting marine primary productivity through a C-14 tracer technique. The system comprises a culture unit, a temperature and water flow simulation control unit and an illumination simulation control unit. The culture unit comprises multiple culture bottles. The temperature and water flow simulation control unit comprises a water bath cover, a circulation water bath kettle and a culture bottle rotation support; the water bath cover is cylinder-shaped; a central rotating shaft is arranged along the central axis of the cylinder; the culture bottle rotation support is arranged on the periphery of the central rotating shaft; the culture bottles are fixed to the culture bottle rotation support; the water bath cover is provided with a water inlet and a water outlet; and the water inlet and the water outlet are connected to the circulation water bath kettle. The illumination simulation control unit comprises a light panel and fluorescent tubes; the fluorescent tubes are arranged on the light panel and are connected to a power supply; and the illumination simulation control unit is arranged on one side of the bottom surface of the cylinder-shaped water bath cover. The system can accurately control water temperature and illumination intensity, can simulate the marine dynamic environment, and can prevent the leakage of C-14.

Description

technical field [0001] The invention relates to a cultivation system of phytoplankton, in particular to a simulated on-site cultivation system for measuring marine primary productivity by using C-14 tracing technology. Background technique [0002] Marine primary productivity refers to the ability or rate of primary producers (mainly phytoplankton) in the ocean to produce organic matter through photosynthesis or chemosynthesis, which is the basis for the survival of other heterotrophic organisms in the marine ecosystem and fundamentally affects the global Biogeochemical cycles and climate change. Therefore, accurate testing of ocean primary productivity has become an important hub for countries to study the carbon cycle between living organisms and inorganic carbon pools, ocean carbon sequestration capacity, and climate change. The C-14 isotope tracer method is by far the most classic and commonly used primary productivity standard testing technique. It was proposed by the ...

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Problems solved by technology

[0009] The present invention aims to provide a "simulated" on-site culture system to solve the problems of the existing culture system, such as difficult operation, long time consumption, high operation requirements, and easy radioactive pollution; at the same time, it can make full use of the high Accuracy characteristics, perfectly solve the problem of measuring marine primary productivity and carrying out related scientific experiments on scientific research ships, and provide technical support for marine scientific investigation and research

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