Page 34 - Green knowledge 2024

Photo: Siri Svendgård-Stokke
Climate measures for drained organic soils
A new report from NIBIO presents possible measures to reduce greenhouse gas emissions
from drained organic agricultural soils in Norway, focusing on both restoration and
continued agricultural activity.
Although drained organic soils make up only six per-
cent of Norway’s agricultural land, they are responsi-
ble for emitting 2.4 million tonnes of CO2-equiva-
lents annually, equivalent to one-third of the
country’s total agricultural emissions. As of 2020, a
ban on cultivating new peatlands has been the only
measure to limit emissions from cultivated organic
soils in Norway.
NIBIO researchers have evaluated the effectiveness
of additional measures based on both national and
international studies. The report explores options
such as the restoration of drained soils, methods to
reduce emissions while keeping the land in agricul-
tural use, and the impacts, duration, and barriers
associated with these measures.
“When combined, these measures can have a signifi-
cant impact on emissions. However, results will vary
depending on local climate, topography, and the type
of peatlands.”
He emphasizes the need for further research, Norwe-
gian-specific data, and technological adaptations for
implementation.
“Method development and field validation are essen-
tial to address climate, agricultural, and economic
challenges. Without precise measurement methods
and proper documentation, it will be challenging to
ensure that emissions reductions from these meas-
ures are accurately recorded and approved in the
national greenhouse gas inventory.”
Dr Simon Weldon highlights promising approaches
such as peatland restoration, paludiculture (cultiva-
tion of crops on wet peatlands), and covering peat
soil with mineral materials.
Purpose: To provide an overview of the knowledge base for possible measures to reduce greenhouse gas
emissions from drained organic agricultural soils in Norway, both through restoration and
continued agricultural use.
Funding: Norwegian Environment Agency
Contact: Research Scientist Simon Weldon, Division of Environment and Natural Resources.
Email: simon.weldon@nibio.no | Phone: +47 407 69 197
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