globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2015.02.016
论文题名:
Tracking long-term human impacts on landscape, vegetal biodiversity and water quality in the Lake Aydat catchment (Auvergne, France) using pollen, non-pollen palynomorphs and diatom assemblages
作者: Miras Y.; Beauger A.; Lavrieux M.; Berthon V.; Serieyssol K.; Andrieu-Ponel V.; Ledger P.M.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2015
卷: 424
起始页码: 76
结束页码: 90
语种: 英语
英文关键词: Anabaena ; Diatom-inferred trophic level ; Eutrophication ; Human impact ; Lake water quality ; Pollen ; Rotifer resting eggs
英文摘要: Palaeoenvironmental studies allow the assessment of long-term human-climate-environmental interactions, and furnish valuable tools for the sustainable management of lacustrine ecosystems. A good example is the multi-proxy study of Lake Aydat's 19. m sedimentary core. Previous research revealed the role of climate and human activities on lake sedimentation, and identified two sedimentary units (6700. ±. 200 to 3180. ±. 90 and 1770. ±. 60. cal. yr BP to present) separated by an erosive mass-wasting deposit (Lavrieux et al., 2013a). Pollen, non-pollen palynomorphs (e.g. fungal and algal spores, rotifer resting eggs), and diatom-based trophic reconstructions have been used to track the impacts of past land use on landscape evolution, vegetal biodiversity and water quality. Palaeoenvironmental data were also compared with local archaeo-historical datasets which allowed refined landscape reconstructions, especially for late Antiquity. The results obtained demonstrate that even Neolithic and Bronze Age human activities (between ca. 4600 and 4300. cal. yr BP and between ca. 3900 and 3500. cal. yr BP) had a discernible influence on catchment vegetation and lacustrine trophic dynamics of Lake Aydat, underlining the vulnerability of the ecosystem. Recurrent and complex models of past vegetation changes, phases of water nutrient over-enrichment and lake resilience were identified and related to grazing activities, but also to land use practises, which have been overlooked in Auvergne, such as mountain agriculture and hemp retting. © 2014 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68986
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作者单位: CNRS, UMR 6042, GEOLAB, 4 rue Ledru, Clermont-Ferrand cedex 1, France; Université Clermont Auvergne, Université Blaise Pascal, GEOLAB, BP 10448, Clermont-Ferrand, France; Institut des Sciences de la Terre (ISTO), UMR 6113 CNRS, Université d'Orléans, BRGM, 1A rue de la Férollerie, Orléans Cedex 2, France; Eawag (Swiss Federal Institute of Aquatic Science and Technology), ETH Zürich, Überlandstrasse 133, Dübendorf, Switzerland; Laboratoire EVS-ISTHME, UMR 5600 - CNRS, Université de Lyon, 6 rue Basse des Rives, Saint-Etienne cedex 2, France; IMBE UMR 7263 CNRS and IRD 237, Aix-Marseille Université, EuropÔle Méditerranéen de l'Arbois, BP 80, Aix-en-Provence cedex 4, France; CNRS, USR 3550, Maison des Sciences de l'Homme, 4 rue Ledru, Clermont-Ferrand cedex 1, France

Recommended Citation:
Miras Y.,Beauger A.,Lavrieux M.,et al. Tracking long-term human impacts on landscape, vegetal biodiversity and water quality in the Lake Aydat catchment (Auvergne, France) using pollen, non-pollen palynomorphs and diatom assemblages[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2015-01-01,424
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