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| Gattinger, Andreas; Müller, Adrian; Haeni, Matthias; Skinner, Collin; Fliessbach, Andreas; Buchmann, Nina; Mäder, Paul; Stolze, Matthias; Smith, Pete; El-Hage Scialabba, Nadia; Niggli, Urs. |
| It has been suggested that conversion to organic farming contributes to soil carbon sequestration, but until now a comprehensive quantitative assessment has been lacking. Therefore, datasets from 74 studies from pairwise comparisons of organic vs. nonorganic farming systems were subjected to metaanalysis to identify differences in soil organic carbon (SOC). We found significant differences and higher values for organically farmed soils of 0.18±0.06% points (mean ± 95% confidence interval) for SOC concentrations, 3.50 ± 1.08 Mg C ha−1 for stocks, and 0.45 ± 0.21 Mg C ha−1 y−1 for sequestration rates compared with nonorganic management. Metaregression did not deliver clear results on drivers, but differences in external C inputs and crop rotations seemed... |
| Tipo: Journal paper |
Palavras-chave: Soil; Environmental aspects. |
| Ano: 2012 |
URL: http://orgprints.org/21735/1/Gattinger-etal-2012-PNAS-vol109-44.pdf |
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| Schader, Christian; Müller, Adrian; El-Hage Scialabba, Nadia; Hecht, Judith; Isensee, Anne; Erb, Karl-Heinz; Smith, Pete; Makkar, Harinder P.S.; Klocke, Peter; Leiber, Florian; Schwegler, Patrizia; Stolze, Matthias; Niggli, Urs. |
| Increasing efficiency in livestock production and reducing the share of animal products in human consumption are two strategies to curb the adverse environmental impacts of the livestock sector. Here,we explore the roomfor sustainable livestock production by modelling the impacts and constraints of a third strategy in which livestock feed components that compete with direct human food crop production are reduced. Thus, in the outmost scenario, animals are fed only from grassland and by-products from food production. We show that this strategy could provide sufficient food (equal amounts of human-digestible energy and a similar protein/calorie ratio as in the reference scenario for 2050) and reduce environmental impacts comparedwith the reference scenario... |
| Tipo: Journal paper |
Palavras-chave: Feeding and growth Recycling; Balancing and resource management. |
| Ano: 2015 |
URL: http://orgprints.org/29549/1/Schader-etal-2015-Food-Competing-Feedstuffs-JRS-p1-12.pdf |
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| Eyhorn, Frank; Müller, Adrian; Reganold, John P.; Frison, Emile; Herren, Hans R.; Luttikholt, Louise; Mueller, Alexander; Sanders, Jürn; El-Hage Scialabba, Nadia; Seufert, Verena; Smith, Pete. |
| Agricultural practices need to change to meet the United Nations Sustainable Development Goals by 2030. How to achieve the SDGs is heavily contested. Here we propose a policy framework that triggers the required transition. Organic agriculture, although not a silver bullet, is a useful component in such strategy. |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general. |
| Ano: 2019 |
URL: http://orgprints.org/35590/1/Eyhorn-etal-2019NatureSust-Vol2-p253-255.pdf |
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