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Hans Henrik Pedersen

An environmental Life Cycle Assessment of Controlled Traffic Farming

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Controlled Traffic Farming (CTF) is an in-field traffic management strategy to minimise soil compaction. The aim of this study was to perform a Life Cycle Assessment (LCA) based on a modelling approach to estimate environmental impacts of producing wheat in Denmark using CTF compared to the conventional practice of Random Traffic Farming (RTF). Compared to the RTF system, CTF reduced environmental impacts on a grain-weight basis in all impact categories analysed: aquatic eutrophication (8-16%), human toxicity (3-15%), terrestrial eutrophication (29%), climate change (50%), acidification (33%), eco-toxicity (11-138%), and land use (7%). Reductions in environmental impacts in the CTF system analysed are caused mainly by higher grain yields, less soil compaction, which decreases P-compound runoff and in-field soil NO and NH emissions, and the use of auto-guidance, which induces less overlap during application of fertilisers and pesticides. The results, moreover, show that these environmental improvements are potentially relevant at a global scale.
OriginalsprogEngelsk
TidsskriftJournal of Cleaner Production
Vol/bind73
Sider (fra-til)175–182
Antal sider8
ISSN0959-6526
DOI
StatusUdgivet - 2014

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