Maurizio mencuccini @en

The future of the Amazon rainforest, in the hands of the smallest trees

A new study, led by the University of Exeter with the participation of Maurizio Mencuccini, ICREA research professor in CREAF, suggests small trees adapt better to droughts and could grow into a new generation to help the rainforest survive.

Amazons Climate change Drought Ecophysiology Exester @en Functional ecology Functional traits Hydraulics Jungle Maurizio mencuccini @en Plant physiology Water stress

CREAF researchers challenge the notion that nitrification occurs only in soil

Human-induced increase in nitrogen deposition profoundly alters nitrogen (N) cycling globally. Yet, the ultimate fate of nitrogen deposition on forest ecosystems isn’t fully understood. Rossella Guerrieri, a Marie Skłodowska-Curie fellow in CREAF sheds light on the overlooked leaf microbial transformations of nitrogen deposition and its contribution to N cycling.

Biogeochemical cycles Cycle nutrients Forests Maurizio mencuccini @en Microbial ecology Nitirification Nitrogen @en Nutrients @en Rossela guerrieri @en Soils

Do drought-affected trees die of thirst or hunger?

A new study has concluded that, universally, trees that have died from drought are unable to transport water to their leaves. The findings also highlight trees that have drained their carbon reserves since they are not able to carry out photosynthesis. The results of the study will permit the creation of more precise models for predicting the effects of climatic changes on vegetation.

Climate change Co2 @en Die-off Drim @en Drought Forests Fun2fun @en Hunger Hydraulics Jordi martínez vilalta @en Maurizio mencuccini @en Mortality Nature ecology & evolution @en Photosynthesis Thirst Trees Water

The tallest trees in tropical forests die from dehydration after extreme droughts

According to a study co-led by CREAF staff published this week in the journal Nature, droughts caused by climate change could result in the death of the tallest tress in tropical forests. For the first time, the scientists have shown that after prolonged water deficit tall trees suffer embolisms in their circulatory systems and die of dehydration. 

Climate change Drought Hydraulics Icrea @en Maurizio mencuccini @en Plant physiology