The authors studied variations in evapotranspiration from precipitation and streamflow data for 461 German catchments from 1964–2019, by considering also changes in water storage and precipitation uncertainty. Evapotranspiration increased over 1970s–2000s, while it stabilized or even tended to decrease afterwards, and these variations were related with those in precipitation and solar radiation.

The study explored changes in community stability of free-living (FL) and particle-attached (PA) bacteria in a shallow urban reservoir in subtropical China for 3 years. Salinity was the strongest environmental factor determining FL and PA bacteria communities whereby salinity increased the compositional stability, but decreased α-diversity. 

The authors conducted innovative in-situ monitoring of stable water isotopes in plant xylem water over an entire growing period including a major drought to assess how urban trees react to changing water supply. They also detected fractionation in plant water. Urban trees rely on deep water supply and internal storage during drought.