期刊
NATURE GEOSCIENCE
卷 12, 期 11, 页码 922-+出版社
NATURE PORTFOLIO
DOI: 10.1038/s41561-019-0462-z
关键词
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资金
- Academy of Finland [296423]
- Department for Employment and Learning (Northern Ireland)
- European Commission (Fifth Framework)
- INTERACT (European Community's Seventh Framework Programme)
- Irish Discovery Programme
- Leverhulme Trust
- Natural Environment Research Council (UK)
- Natural Sciences and Engineering Research Council of Canada
- Netherlands Organization for Scientific Research
- Polish National Science Centre [2015/17/B/ST10/01656]
- Quaternary Research Association
- Russian Science Foundation [19-14-00102]
- Swiss Contribution to the enlarged European Union
- Swiss Federal Office for Education and Science
- Swiss National Science Foundation
- World University Network
- National Science Centre (Poland)
- Wuthrich Fund (University of Neuchatel)
- Yorkshire Water
- Leeds-York Natural Environment Research Council (NERC) Doctoral Training Partnership [NE/L002574/1]
- NERC [NE/G52398X/1]
- Dutch Foundation for the Conservation of Irish Bogs
- US National Science Foundation
- Swiss Academy of Sciences
- NERC [NE/I012915/1] Funding Source: UKRI
- Russian Science Foundation [19-14-00102] Funding Source: Russian Science Foundation
Climate warming and human impacts are thought to be causing peatlands to dry, potentially converting them from sinks to sources of carbon. However, it is unclear whether the hydrological status of peatlands has moved beyond their natural envelope. Here we show that European peatlands have undergone substantial, widespread drying during the last similar to 300 years. We analyse testate amoeba-derived hydrological reconstructions from 31 peatlands across Britain, Ireland, Scandinavia and Continental Europe to examine changes in peatland surface wetness during the last 2,000 years. We find that 60% of our study sites were drier during the period 1800-2000 (CE) than they have been for the last 600 years, 40% of sites were drier than they have been for 1,000 years and 24% of sites were drier than they have been for 2,000 years. This marked recent transition in the hydrology of European peatlands is concurrent with compound pressures including climatic drying, warming and direct human impacts on peatlands, although these factors vary among regions and individual sites. Our results suggest that the wetness of many European peatlands may now be moving away from natural baselines. Our findings highlight the need for effective management and restoration of European peatlands.
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