Where is the water during a drought?

In low precipitation periods - where and how is the limited available water distributed and what possibilities are there for improving retention in the soil and the landscape? Researchers discovered that vegetation has a major influence on this. Using the example of the drought-sensitive Demnitzer Muehlenfliess in Brandenburg, they quantified visible and invisible water flows during and shortly after the drought of 2018.

source https://www.sciencedaily.com/releases/2020/07/200717120144.htm