Dendrochronological analysis of the canopy history of two Ohio old-growth forests
Identifieur interne : 000036 ( Istex/Curation ); précédent : 000035; suivant : 000037Dendrochronological analysis of the canopy history of two Ohio old-growth forests
Auteurs : Do-Soon Cho [États-Unis] ; R. E. J. Boerner [États-Unis]Source :
- Vegetatio [ 0042-3106 ] ; 1995-10-01.
Abstract
Abstract: This study examined the temporal patterns of establishment, suppression, and release of major tree species in two old-growth Ohio forest remnants as a means to determine the past disturbance history of these forests. Increment cores were taken from a total of 154 trees from two well-drained, upland plots and two poorly-drained, bottomland plots in each of the two forested areas. Acer saccharum and Fagus grandifolia exhibited multiple episodes of suppression and release prior to becoming canopy trees, and could tolerate suppressions as long as 84 years. In contrast, Quercus macrocarpa, Q. muehlenbergii, Prunus serotina, and Acer saccharinum rerely exhibited any tolerance to suppression and appeared to have entered the canopy after single disturbances had opened large areas of canopy. There was clear synchrony in the temporal pattern of establishment and final release from suppression among trees from bottomland plots scattered throughout the stands, indicating that relatively large disturbances were important in these poorly-drained areas. In contrast, there was little synchrony among trees from well-drained upland plots, except in a single instance where selective cutting of Quercus trees opened the canopy. Thus, the canopy of upland site was likely subjected only to small disturbances resulting from the death of one or a few trees. At the whole of forest level, there was evidence of episodic recruitment of canopy trees in both forests. Establishment of Fraxinus spp. and Quercus spp. were particularly episodic, and few Fraxinus or Quercus trees alive today established during the last century. These data suggest that large disturbances have affected canopy dynamics of both upland and bottomland areas prior to 1900 and in bottomland forests through this century. In contrast, disturbances in upland areas during this century have been restricted to small, treefall-generated canopy gaps.
Url:
DOI: 10.1007/BF00034346
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<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Dendrochronological analysis of the canopy history of two Ohio old-growth forests</title><author><name sortKey="Cho, Do Soon" sort="Cho, Do Soon" uniqKey="Cho D" first="Do-Soon" last="Cho">Do-Soon Cho</name><affiliation wicri:level="1"><mods:affiliation>Department of Plant Biology, Ohio State University, 1735 Neil Avenue, 43210, Columbus, Ohio, USA</mods:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Plant Biology, Ohio State University, 1735 Neil Avenue, 43210, Columbus, Ohio</wicri:regionArea></affiliation></author><author><name sortKey="Boerner, R E J" sort="Boerner, R E J" uniqKey="Boerner R" first="R. E. J." last="Boerner">R. E. J. 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E. J." last="Boerner">R. E. J. Boerner</name><affiliation wicri:level="1"><mods:affiliation>Department of Plant Biology, Ohio State University, 1735 Neil Avenue, 43210, Columbus, Ohio, USA</mods:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Plant Biology, Ohio State University, 1735 Neil Avenue, 43210, Columbus, Ohio</wicri:regionArea></affiliation></author></analytic><monogr></monogr><series><title level="j">Vegetatio</title><title level="j" type="abbrev">Vegetatio</title><idno type="ISSN">0042-3106</idno><idno type="eISSN">1573-5052</idno><imprint><publisher>Kluwer Academic Publishers; gopher://gopher.wkap.nl/</publisher><pubPlace>Dordrecht</pubPlace><date type="published" when="1995-10-01">1995-10-01</date><biblScope unit="volume">120</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="173">173</biblScope><biblScope unit="page" to="183">183</biblScope></imprint><idno type="ISSN">0042-3106</idno></series><idno type="istex">93D43DCF36C1DBB6D7A2CB0135A70DF7932A0B67</idno><idno type="DOI">10.1007/BF00034346</idno><idno type="ArticleID">BF00034346</idno><idno type="ArticleID">Art6</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0042-3106</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: This study examined the temporal patterns of establishment, suppression, and release of major tree species in two old-growth Ohio forest remnants as a means to determine the past disturbance history of these forests. Increment cores were taken from a total of 154 trees from two well-drained, upland plots and two poorly-drained, bottomland plots in each of the two forested areas. Acer saccharum and Fagus grandifolia exhibited multiple episodes of suppression and release prior to becoming canopy trees, and could tolerate suppressions as long as 84 years. In contrast, Quercus macrocarpa, Q. muehlenbergii, Prunus serotina, and Acer saccharinum rerely exhibited any tolerance to suppression and appeared to have entered the canopy after single disturbances had opened large areas of canopy. There was clear synchrony in the temporal pattern of establishment and final release from suppression among trees from bottomland plots scattered throughout the stands, indicating that relatively large disturbances were important in these poorly-drained areas. In contrast, there was little synchrony among trees from well-drained upland plots, except in a single instance where selective cutting of Quercus trees opened the canopy. Thus, the canopy of upland site was likely subjected only to small disturbances resulting from the death of one or a few trees. At the whole of forest level, there was evidence of episodic recruitment of canopy trees in both forests. Establishment of Fraxinus spp. and Quercus spp. were particularly episodic, and few Fraxinus or Quercus trees alive today established during the last century. These data suggest that large disturbances have affected canopy dynamics of both upland and bottomland areas prior to 1900 and in bottomland forests through this century. In contrast, disturbances in upland areas during this century have been restricted to small, treefall-generated canopy gaps.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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