Indoor soil organic carbon mineralization culture monitoring device

The invention discloses an indoor soil organic carbon mineralization culture monitoring device which comprises a constant-temperature trough, a temperature acquisition component, a culture bottle, a sucking bottle and a guide tube, wherein one end of the guide tube penetrates through a first inner rubber plug and extends into the culture bottle; and the other end of the guide tube penetrates through a second inner rubber plug and extends to a part below a sodium hydroxide liquid level. According to the device disclosed by the invention, a culture temperature can be controlled by the constant-temperature trough controlled by a temperature control tank, and then specific temperature conditions can be provided for soil organic carbon mineralization; the culture bottle and the sucking bottle are separated and are connected through the guide tube, and then the soil organic carbon mineralization velocity and the accumulated mineralization amount can be continuously tested; a soil sample culture device, used for con