LPJmL grew from the Lund–Potsdam–Jena dynamic global vegetation model to a managed-land framework that couples carbon, nitrogen, and water cycles for natural and agricultural systems. It links vegetation dynamics with terrestrial hydrology, land use, and river routing to assess food production, ecosystem services, and climate impacts.

What LPJmL offers#

• Joint simulation of carbon, water, and energy fluxes for natural and managed vegetation.
• Crop, irrigation, bioenergy, and river routing modules for agriculture and water availability studies.
• Daily/monthly inputs (climate, land use, soils, routing) over global 0.5° grids; outputs by PFT, land-use class, and grid cell.
• Scenario analysis for climate impacts, land-use change, mitigation, and adaptation pathways.

Explore the site#

• Applications — agriculture, water, carbon cycle, and risk use cases.
• Publications — key papers, GMD special issue, and citation links.
• Documentation — setup notes and version history.
• Benchmarks — ILAMB evaluation results via stable links.
• History — how LPJ evolved into LPJmL.

ILAMB benchmarks#

ILAMB benchmark outputs are hosted for reproducibility:

• ILAMB landing page — browse available runs (e.g., LPJmL5.10) via stable links.

Model schematic#

LPJmL grid cell structure (CC-BY).

Open and collaborative#

• Source code: GitHub AGPLv3 and archived releases on Zenodo.
• Maintained across PIK research departments (ecosystems, terrestrial safe operating space, land biosphere dynamics) and used in POEM/PIAM frameworks and IMAGE.
• Contributions welcome: open issues/PRs with configuration details and validation notes.