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Combining long-term atmospheric CO2 records with satellite observations of vegetation activities across the Northern Hemisphere, the authors identify a weakening trend of the link between spring and summer productivity over the past 40 years.
Remote sensing of vegetation productivity in mangroves and nearby terrestrial evergreen forests shows that mangrove productivity has increased more but also shown more variability in the last two decades compared to nearby terrestrial forests, suggesting they are more vulnerable to coastal water deficits.
The authors compare how grasslands, shrublands and forests differ in their capacity to recover from fires, and how this recovery depends on deviations in water balance caused by drought; they show that the compound effects of fire and drought are less impactful in forests than in non-forests, owing to deeper rooting structures that can maintain access to water.
