How do positive and negative feedback mechanisms operate in the water cycle?

Positive feedback mechanisms amplify initial changes, making a system more unstable. For instance, higher temperatures cause increased evaporation rates, which can lead to cloud formation and potentially more precipitation. Negative feedback mechanisms counteract initial changes to restore balance. An example would be how increased precipitation can lead to higher vegetation growth, which then uses more water for transpiration, thus reducing the amount of runoff and stabilising the system.