The biogeochemical cycle that involves transpiration is the water cycle, also known as the hydrological cycle.
Transpiration is a process where water is absorbed by plant roots from the soil, moves through plants, and is released as water vapor through pores in leaves known as stomata. This process plays a crucial role in the water cycle by contributing to the movement of water from the ground into the atmosphere.
In the water cycle, transpiration works alongside other processes such as evaporation, condensation, precipitation, and infiltration. Together, these processes maintain the balance of water within ecosystems and help regulate climate.