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The use of antibiotics is not permitted in Switzerland; moreover, no other medication exists to combat European foul brood. Hives with symptoms must therefore be destroyed in order to limit the outbreak, and the contaminated material must be sanitised. Since prevention is the best cure, early detection is desirable. Numerous studies have been undertaken and documents have been created at the Swiss Bee Research Centre and elsewhere to draw the attention of beekeepers to these problems and inform them about the causes and the control measures to be implemented.

Merkblatt zur erkennung von Bienenbrutkrankheiten (German (PDF, 357 kB, 18.10.2017) and French (PDF, 226 kB, 02.02.2017))
M. Tschumi (2011)

Intact and managed peatland soils as a source and sink of GHGs from 1850 to 2100.

Institutional Repository Agroscope

Leifeld J., Wüst C., Page S.

Intact and managed peatland soils as a source and sink of GHGs from 1850 to 2100.

Nature Climate Change, 9, 2019, 945-949.

Link: https://www.nature.com/articles/s41558-019-0615-5?draft=marketing

Riassunto:

Land-use change disturbs the function of peatland as a natural carbon sink and triggers high GHG emissions1. Nevertheless, historical trends and future trajectories of GHG budgets from soil do not explicitly include peatlands2,3. Here, we provide an estimate of the past and future role of global peatlands as either a source or sink of GHGs based on scenario timelines of land conversion. Between 1850 and 2015, temperate and boreal regions lost 26.7 million ha, and tropical regions 24.7 million ha, of natural peatland. By 2100, peatland conversion in tropical regions might increase to 36.3 million ha. Cumulative emissions from drained sites reached 80 ± 20 PgCO2e in 2015 and will add up to 249 ± 38 Pg by 2100. At the same time, the number of intact sites accumulating peat will decline. In 1960 the global peatland biome turned from a net sink into a net source of soil-derived GHGs. Annual backconversion of most of the drained area would render peatlands GHG neutral, whereas emissions from peatland may comprise 12–41% of the GHG emission budget for keeping global warming below +1.5 to +2 °C without rehabilitation.

ISSN Print: 1758-678X
ISSN Online: 1758-6798
Digital Object Identifier (DOI): https://doi.org/10.1038/s41558-019-0615-5
ID pubblicazione (Codice web): 43069 Inviare via e-mail

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Intact and managed peatland soils as a source and sink of GHGs from 1850 to 2100.