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The MYR Project (2018-21): Climate smart management practices on Norwegian organic soils

Poster
Authors Xiao Huang
Mats Höglind
Knut Bjørkelo
Torben Christensen
Kjetil Fadnes
Teresa Bárcena
Åsa Kasimir
Leif Klemedtsson
Bjørn Kløve
Anders Lyngstad
Mikhail Mastepanov
Hannu Marttila
Marcel van Oijen
Peter Petros
Jagadeesh Yeluripati
Hanna Silvennoinen
Published in Geophysical Research Abstracts Vol. 21, EGU2019-7918, 2019
Publication year 2019
Published at Department of Earth Sciences
Language en
Links https://meetingorganizer.copernicus...
Subject categories Earth and Related Environmental Sciences

Abstract

Cultivated organic soils account for∼7% of Norway’s agricultural land area, and they are estimated to be a significant source of greenhouse gas (GHG) emissions. The project ‘Climate smart management practices on Norwegian organic soils’ (MYR), commissioned by the Research Council of Norway (decision no. 281109), aims to evaluate GHG (e.g. carbon dioxide, methane and nitrous oxide) emissions and impacts on biomass productivity from three land use types (cultivated, abandoned and restored) on organic soils. At the cultivated sites, impacts of drainage depth and management intensity will be measured. We established experimental sites in Norway covering a broad range of climate and management regimes, which will produce observational data in high spatio-temporal resolution during 2019-2021. Using state-of-the-art modelling techniques, MYR aims to predict the potential GHG mitigation under different scenarios. Four models (BASGRA, DNDC, Coup and ECOSSE) will be further developed according to the soil properties, and then used independently in simulating biogeochemical processes and biomass dynamics in the different land uses. Robust parameterization schemes for each model will be based in the observational data from the project for both soil and crop combinations. Eventually, a multi-model ensemble prediction will be carried out to provide scenario analyses by 2030 and 2050. By integrating experimental results and modelling, the project aims at generating useful information for recommendations on environment-friendly use of Norwegian peatlands.

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