Water surface greenhouse gas discharge measuring flotation tank

A water surface greenhouse gas discharge measuring flotation tank comprises a measuring tank body. A flotation gear is arranged on the outer side of the measuring tank body, a fixing rope is connected with the measuring tank body, two gas sample holes are disposed on the measuring tank body, a tinfoil reflecting material layer covers the outer surface of the measuring tank body, and a measuring pipeline is communicated with the measuring tank body through the gas sample holes and provided with a three-way valve. Meters connected with each other via the measuring pipeline are disposed between the two gas sample holes. The water surface greenhouse gas discharge measuring flotation tank can effectively increase measurement precision and operational convenience of greenhouse gas discharge monitoring of water surfaces of reservoirs, rivers and lakes, can effectively shorten every monitoring time, and avoids possible uncontrollable measurement precision due to sudden change of hydrological and meteorological factor