Predicting the abatement rates of soil organic carbon sequestration management in Western European vineyards using random forest regression

Payen, Florian Thomas and Sykes, Alasdair and Aitkenhead, Matthew and Alexander, Peter and Moran, Dominic and MacLeod, Michael (2021) Predicting the abatement rates of soil organic carbon sequestration management in Western European vineyards using random forest regression. Cleaner Environmental Systems, 2.

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Abstract

The implementation of soil organic carbon sequestration (SCS) practices on agricultural land has the potential to help to mitigate climate change at the global level. However, our understanding of the extent to which viticultural soils can contribute to this global effort remains limited. In this study, we used a random forest regression to predict the change in soil organic carbon stocks in vineyards of Western Europe under five SCS practices: organic amendments (OA), cover cropping (CC), organic amendments and no-tillage (OA+NT), no-tillage and cover cropping (NT+CC), and a combination of organic amendments, no-tillage and cover cropping (OA+NT+CC). The abatement rate of each SCS practice was modelled and mapped for six countries in Western Europe: Spain, France, Italy, Portugal, Germany and Austria. Overall, the highest abatement rate was reached under OA+NT+CC (8.29 ​Mg CO2-eq. ha−1 yr−1), whereas the lowest was observed under CC (7.03 Mg CO2-eq. ha−1 yr−1). Results showed major differences in abatement rates at the regional and national level. Despite these differences, the adoption of SCS practices was associated with a high abatement potential in the six countries and should be encouraged in the viticulture sector as a way to offset greenhouse gas emissions via soil carbon sequestration.

Item Type:
Journal Article
Journal or Publication Title:
Cleaner Environmental Systems
Subjects:
ID Code:
154358
Deposited By:
Deposited On:
28 Apr 2021 13:45
Refereed?:
Yes
Published?:
Published
Last Modified:
29 Apr 2021 01:27