Impacts of enhanced weathering on biomass production for negative emission technologies and soil hydrology

de Oliveira Garcia, Wagner; Amann, Thorben; Hartmann, Jens; Karstens, Kristine; Popp, Alexander; Boysen, Lena R.; Smith, Pete; Goll, Daniel

doi:https://doi.org/10.5194/bg-17-2107-2020

Articles | Volume 17, issue 7

https://doi.org/10.5194/bg-17-2107-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-17-2107-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 7

Research article

|

17 Apr 2020

Research article |

| 17 Apr 2020

Impacts of enhanced weathering on biomass production for negative emission technologies and soil hydrology

Wagner de Oliveira Garcia, Thorben Amann, Jens Hartmann, Kristine Karstens, Alexander Popp, Lena R. Boysen, Pete Smith, and Daniel Goll

Supplement

https://doi.org/10.5194/bg-17-2107-2020-supplement

Data sets

Tree chemistry database (version 1.0) L. H. Pardo, M. Robin-Abbott, N. Duarte, and E. K. Miller https://www.fs.usda.gov/treesearch/pubs/9464

A Global Database of Carbon and Nutrient Concentrations of Green and Senesced Leaves L. Vergutz, S. Manzoni, A. Porporato, R. F. Novais, and R. B. Jackson https://daac.ornl.gov/VEGETATION/guides/Leaf_carbon_nutrients.html

Global Gridded Soil Phosphorus Distribution Maps at 0.5-degree Resolution X. Yang, W. M. Post, P. E Thornton, and A. K. Jain http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1223

ISRIC-WISE global data set of derived soil properties on a 0.5 by 0.5 degree grid (version 3.0) N. Batjes https://data.isric.org/geonetwork/srv/api/records/d9eca770-29a4-4d95-bf93-f32e1ab419c3

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Short summary

Biomass-based terrestrial negative emission technologies (tNETS) have high potential to sequester CO₂. Many CO₂ uptake estimates do not include the effect of nutrient deficiencies in soils on biomass production. We show that nutrients can be partly resupplied by enhanced weathering (EW) rock powder application, increasing the effectiveness of tNETs. Depending on the deployed amounts of rock powder, EW could also improve soil hydrology, adding a new dimension to the coupling of tNETs with EW.