Diatom succession related to land use during the last 6000 years: a study of a small eutrophic lake in southern Sweden
Identifieur interne : 000E50 ( Istex/Curation ); précédent : 000E49; suivant : 000E51Diatom succession related to land use during the last 6000 years: a study of a small eutrophic lake in southern Sweden
Auteurs : Hannelore H Kansson [Suède] ; Joachim Regnéll [Suède]Source :
- Journal of Paleolimnology [ 0921-2728 ] ; 1993-01-01.
Abstract
Abstract: Diatoms, pollen, physical and magnetic analyses of the sediments have been used to reconstruct the development over the last 6000 years of Lake Bussjösjön, a small lake in southern Sweden. Stratigraphic variations in a core of more than 15 m reveal changes in diatom assemblages, which correspond closely to changes in pollen, loss-on-ignition, and magnetic measurements that are related to land use and vegetation changes in the catchment. From ca 6000 BP to 2700 BP, a forest surrounded what was then a slightly eutrophic lake. The sudden appearance of Cyclostephanos dubius (Fricke) Round and several epiphytic/epipsammic diatoms at 2700 BP coincides with deforestation of the catchment (2700 BP to 2500 BP). A change in land use from predominantly pasture to arable land from 1300 BP to 1100 BP caused a high level of soil erosion with a decrease of C. dubius and the increase of Stephanodiscus species. An increase of epiphytic/epipsammic species coincides with increased arable farming and the change from a field-rotation to a crop-rotation system, and shows not only an increase in eutrophication but also changes in water depth. The influence of the catchment through time resulted in a smaller, shallower and eutrophic to hypertrophic lake.
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DOI: 10.1007/BF00210057
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<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Diatom succession related to land use during the last 6000 years: a study of a small eutrophic lake in southern Sweden</title><author><name sortKey="H Kansson, Hannelore" sort="H Kansson, Hannelore" uniqKey="H Kansson H" first="Hannelore" last="H Kansson">Hannelore H Kansson</name><affiliation wicri:level="1"><mods:affiliation>Department of Quaternary Geology, Lund University, Tornavägen 13, S-223 63, Lund, Sweden</mods:affiliation><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Quaternary Geology, Lund University, Tornavägen 13, S-223 63, Lund</wicri:regionArea></affiliation></author><author><name sortKey="Regnell, Joachim" sort="Regnell, Joachim" uniqKey="Regnell J" first="Joachim" last="Regnéll">Joachim Regnéll</name><affiliation wicri:level="1"><mods:affiliation>Department of Quaternary Geology, Lund University, Tornavägen 13, S-223 63, Lund, Sweden</mods:affiliation><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Quaternary Geology, Lund University, Tornavägen 13, S-223 63, Lund</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:D95DBC8BD192778FB1FF409C083ECCEF4152AF47</idno><date when="1993" year="1993">1993</date><idno type="doi">10.1007/BF00210057</idno><idno type="url">https://api.istex.fr/document/D95DBC8BD192778FB1FF409C083ECCEF4152AF47/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000E50</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000E50</idno><idno type="wicri:Area/Istex/Curation">000E50</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Diatom succession related to land use during the last 6000 years: a study of a small eutrophic lake in southern Sweden</title><author><name sortKey="H Kansson, Hannelore" sort="H Kansson, Hannelore" uniqKey="H Kansson H" first="Hannelore" last="H Kansson">Hannelore H Kansson</name><affiliation wicri:level="1"><mods:affiliation>Department of Quaternary Geology, Lund University, Tornavägen 13, S-223 63, Lund, Sweden</mods:affiliation><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Quaternary Geology, Lund University, Tornavägen 13, S-223 63, Lund</wicri:regionArea></affiliation></author><author><name sortKey="Regnell, Joachim" sort="Regnell, Joachim" uniqKey="Regnell J" first="Joachim" last="Regnéll">Joachim Regnéll</name><affiliation wicri:level="1"><mods:affiliation>Department of Quaternary Geology, Lund University, Tornavägen 13, S-223 63, Lund, Sweden</mods:affiliation><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Quaternary Geology, Lund University, Tornavägen 13, S-223 63, Lund</wicri:regionArea></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Paleolimnology</title><title level="j" type="abbrev">J Paleolimnol</title><idno type="ISSN">0921-2728</idno><idno type="eISSN">1573-0417</idno><imprint><publisher>Kluwer Academic Publishers</publisher><pubPlace>Dordrecht</pubPlace><date type="published" when="1993-01-01">1993-01-01</date><biblScope unit="volume">8</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="49">49</biblScope><biblScope unit="page" to="69">69</biblScope></imprint><idno type="ISSN">0921-2728</idno></series><idno type="istex">D95DBC8BD192778FB1FF409C083ECCEF4152AF47</idno><idno type="DOI">10.1007/BF00210057</idno><idno type="ArticleID">BF00210057</idno><idno type="ArticleID">Art5</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0921-2728</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Diatoms, pollen, physical and magnetic analyses of the sediments have been used to reconstruct the development over the last 6000 years of Lake Bussjösjön, a small lake in southern Sweden. Stratigraphic variations in a core of more than 15 m reveal changes in diatom assemblages, which correspond closely to changes in pollen, loss-on-ignition, and magnetic measurements that are related to land use and vegetation changes in the catchment. From ca 6000 BP to 2700 BP, a forest surrounded what was then a slightly eutrophic lake. The sudden appearance of Cyclostephanos dubius (Fricke) Round and several epiphytic/epipsammic diatoms at 2700 BP coincides with deforestation of the catchment (2700 BP to 2500 BP). A change in land use from predominantly pasture to arable land from 1300 BP to 1100 BP caused a high level of soil erosion with a decrease of C. dubius and the increase of Stephanodiscus species. An increase of epiphytic/epipsammic species coincides with increased arable farming and the change from a field-rotation to a crop-rotation system, and shows not only an increase in eutrophication but also changes in water depth. The influence of the catchment through time resulted in a smaller, shallower and eutrophic to hypertrophic lake.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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