The income of Wuhan Metro Company in the first-level land development stage. The first-level development of subway resources refers to a series of treatments, such as expropriation, demolition, infrastructure construction, water supply and power supply, for the designated undeveloped state-owned land or rural collective land, entrusted by the Ministry of Land and Resources, so that it can reach the construction land in Gai Lou. The income from the first-level development of Wuhan Metro resources refers to the income obtained by Wuhan Metro Company in the first-level land development stage, which is mainly used for infrastructure construction, such as the construction and improvement of roads, water supply, power supply and drainage systems.