Field observations
Long-term plots reveal how mortality changes through time and across species.
A connected evidence base
Research & data
We connect measurements, mechanisms, remote sensing and models to make forest mortality visible and predictable.
One question, many ways of seeing
No single method can explain why trees die across the world’s forests. Our network helps scientists connect four complementary perspectives:
Mechanisms
Experiments and physiology help explain how heat, drought and disturbance lead to tree death.
Earth observation
Satellite, airborne and drone data extend local evidence across landscapes.
Models
Models integrate evidence and test how forests may respond to future conditions.
Our integrated approach
Forest inventories, remote sensing, process studies and models observe different parts of tree mortality at different scales. ITMN connects these lines of evidence so that they can be compared, used to identify mortality hotspots and translated into better forecasts. Read how the approach fits together.
Global Tree Mortality Database
The network’s open database makes published mortality observations easier to discover, compare and reuse while respecting contributor credit and data governance. Search, map and download observations in the Global Tree Mortality Database.
Contribute data
Have a forest inventory, experimental dataset or remote-sensing product to share? Visit the database portal to review its metadata and submission guidance.