Modelling the role of livestock grazing in C and N cycling in grasslands with LPJmL5.0-grazing

Heinke, Jens; Rolinski, Susanne; Müller, Christoph

doi:https://doi.org/10.5194/gmd-16-2455-2023

Articles | Volume 16, issue 9

https://doi.org/10.5194/gmd-16-2455-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-16-2455-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 9

Model description paper

|

09 May 2023

Model description paper |

| 09 May 2023

Modelling the role of livestock grazing in C and N cycling in grasslands with LPJmL5.0-grazing

Jens Heinke, Susanne Rolinski, and Christoph Müller

Supplement

https://doi.org/10.5194/gmd-16-2455-2023-supplement

Data sets

ISIMIP3a atmospheric climate input data (v1.0) Stefan Lange, Matthias Mengel, Simon Treu, and Matthias Büchner https://doi.org/10.48364/ISIMIP.982724

ISIMIP3a atmospheric composition input data (v1.2) Matthias Büchner and Christopher Reyer https://doi.org/10.48364/ISIMIP.664235.2

ISIMIP3b N-deposition input data (v1.0) Jia Yang and Hanqin Tian https://doi.org/10.48364/ISIMIP.600567

Model code and software

LPJmL5.0-grazing Model Code Jens Heinke, Susanne Rolinski, and Christoph Müller https://doi.org/10.5281/zenodo.6806652

Short summary

We develop a livestock module for the global vegetation model LPJmL5.0 to simulate the impact of grazing dairy cattle on carbon and nitrogen cycles in grasslands. A novelty of the approach is that it accounts for the effect of feed quality on feed uptake and feed utilization by animals. The portioning of dietary nitrogen into milk, feces, and urine shows very good agreement with estimates obtained from animal trials.