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Assessing the climate and eutrophication impacts of grass cultivation at five sites in Sweden

Nilsson, Johan and Tidåker, Pernilla and Sundberg, Cecilia and Henryson, Kajsa and Grant, Brian and Smith, Ward and Hansson, Per-Anders (2020). Assessing the climate and eutrophication impacts of grass cultivation at five sites in Sweden. Acta Agriculturae Scandinavica, Section B - Soil and Plant Science. 70 , 605-619
[Research article]

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Abstract

In this study, Life Cycle Assessment (LCA) methodology was combined with the agro-ecosystem model DNDC to assess the climate and eutrophication impacts of perennial grass cultivation at five different sites in Sweden. The system was evaluated for two fertilisation rates, 140 and 200 kg N ha(-1). The climate impact showed large variation between the investigated sites. The largest contribution to the climate impact was through soil N2O emissions and emissions associated with mineral fertiliser manufacturing. The highest climate impact was predicted for the site with the highest clay and initial organic carbon content, while lower impacts were predicted for the sandy loam soils, due to low N2O emissions, and for the silty clay loam, due to high carbon sequestration rate. The highest eutrophication potential was estimated for the sandy loam soils, while the sites with finer soil texture had lower eutrophication potential. According to the results, soil properties and weather conditions were more important than fertilisation rate for the climate impact of the system assessed. It was concluded that agro-ecosystem models can add a spatial and temporal dimension to environmental impact assessment in agricultural LCA studies. The results could be used to assist policymakers in optimising use of agricultural land.

Authors/Creators:Nilsson, Johan and Tidåker, Pernilla and Sundberg, Cecilia and Henryson, Kajsa and Grant, Brian and Smith, Ward and Hansson, Per-Anders
Title:Assessing the climate and eutrophication impacts of grass cultivation at five sites in Sweden
Series Name/Journal:Acta Agriculturae Scandinavica, Section B - Soil and Plant Science
Year of publishing :2020
Volume:70
Page range:605-619
Number of Pages:15
Publisher:TAYLOR & FRANCIS AS
ISSN:0906-4710
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 405 Other Agricultural Sciences > Environmental Sciences related to Agriculture and Land-use
Keywords:Carbon sequestration, DNDC model, greenhouse gas emissions, life cycle assessment (LCA), perennial cropping systems, soil N2O emissions
URN:NBN:urn:nbn:se:slu:epsilon-p-108118
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-108118
Additional ID:
Type of IDID
DOI10.1080/09064710.2020.1822436
Web of Science (WoS)000571299100001
ID Code:18740
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Energy and Technology
Deposited By: SLUpub Connector
Deposited On:25 Nov 2020 10:23
Metadata Last Modified:15 Jan 2021 19:44

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