Journal cover Journal topic
Biogeosciences An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

IF value: 3.480
IF3.480
IF 5-year value: 4.194
IF 5-year
4.194
CiteScore value: 6.7
CiteScore
6.7
SNIP value: 1.143
SNIP1.143
IPP value: 3.65
IPP3.65
SJR value: 1.761
SJR1.761
Scimago H <br class='widget-line-break'>index value: 118
Scimago H
index
118
h5-index value: 60
h5-index60
Preprints
https://doi.org/10.5194/bg-2020-298
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-2020-298
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  11 Aug 2020

11 Aug 2020

Review status
A revised version of this preprint is currently under review for the journal BG.

Soil properties override climate controls on global soil organic carbon stocks

Zhongkui Luo1 and Raphael Viscarra-Rossel2 Zhongkui Luo and Raphael Viscarra-Rossel
  • 1College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
  • 2School of Molecular & Life Sciences, Curtin University, Perth, WA 6845, Australia

Abstract. Soil organic carbon (SOC) accounts for two-thirds of terrestrial carbon. Yet, the role of soil physiochemical properties in regulating SOC stocks is unclear, inhibiting reliable SOC predictions under land use and climatic changes. Using legacy observations from 141,584 soil profiles worldwide, we disentangle the effects of biotic, climatic and edaphic factors (a total of 30 variables) on the global spatial distribution of SOC stocks in four sequential soil layers down to 2 m. The results indicate that the 30 variables can explain 70–80 % of the global variance of SOC in the four layers, to which edaphic properties contribute ~ 60 %. Soil lower limit is the most important individual soil properties, positively associated with SOC in all layers, while climatic variables are secondary. This dominant effect of soil properties challenges current climate-driven framework of SOC dynamics, and need to be considered to reliably project SOC changes for effective carbon management and climate change mitigation.

Zhongkui Luo and Raphael Viscarra-Rossel

Interactive discussion

Status: final response (author comments only)
Status: final response (author comments only)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

Zhongkui Luo and Raphael Viscarra-Rossel

Zhongkui Luo and Raphael Viscarra-Rossel

Viewed

Total article views: 472 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
336 130 6 472 25 9 16
  • HTML: 336
  • PDF: 130
  • XML: 6
  • Total: 472
  • Supplement: 25
  • BibTeX: 9
  • EndNote: 16
Views and downloads (calculated since 11 Aug 2020)
Cumulative views and downloads (calculated since 11 Aug 2020)

Viewed (geographical distribution)

Total article views: 366 (including HTML, PDF, and XML) Thereof 361 with geography defined and 5 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Saved

No saved metrics found.

Discussed

No discussed metrics found.
Latest update: 26 Nov 2020
Publications Copernicus
Download
Short summary
We disentangled the relative importance of biotic, climatic and edaphic variables in controlling global SOC stocks. The results suggested that soil physiochemical properties are more important than climatic variables for controlling global SOC stocks, challenging current climate-driven framework of SOC dynamics.
We disentangled the relative importance of biotic, climatic and edaphic variables in controlling...
Citation
Altmetrics