Abstract
During the period from 1986 through 1992 the ``Postturm`` forest district Farchau/Ratzeburg has been the site of an interdisciplinary research programme. 13 research institutions have contributed to this programme. Three field stations were established for `in situ` determination of inorganic and organic pollutants as well as physiological stress measurements in the crown of spruce trees. Stress and its correlation with tree damage was examined by studying biological and chemical parameters of needles, wood and fine roots, including soil chemical characters. The investigations were extended to studies on changes in wood structure and quality of physiologically damaged trees. In addition, aspects related to tree population genetics were considered. The results show that the ``Postturm`` site had, at least for short periods of time, suffered severe damage from gaseous pollutants. In the 1980`s dry depositions, of lead particularly, had reached and elevated damage level. This element had accumulated in the upper soil and, above all, in the fine roots located in that soil layer. A decreasing availability of nutrients combined with an increasing aluminum antagonism in mineral soil may also contribute to stress in spruce. In the trees investigated this stress can be partly compensated during periods of sufficient water supply. However,
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Michaelis, W;
[1]
Bauch, J
[2]
- ed.; GKSS-Forschungszentrum Geesthacht GmbH, Geesthacht-Tesperhude (Germany). Inst. fuer Physik
- ed.; Hamburg Univ. (Germany). Ordinariat fuer Holzbiologie (OHb)
Citation Formats
Michaelis, W, and Bauch, J.
Air pollution and forest damages at the `Postturm` forest district Farchau/Ratzeburg; Luftverunreinigungen und Waldschaeden am Standort ``Postturm``, Forstamt Farchau/Ratzeburg.
Germany: N. p.,
1992.
Web.
Michaelis, W, & Bauch, J.
Air pollution and forest damages at the `Postturm` forest district Farchau/Ratzeburg; Luftverunreinigungen und Waldschaeden am Standort ``Postturm``, Forstamt Farchau/Ratzeburg.
Germany.
Michaelis, W, and Bauch, J.
1992.
"Air pollution and forest damages at the `Postturm` forest district Farchau/Ratzeburg; Luftverunreinigungen und Waldschaeden am Standort ``Postturm``, Forstamt Farchau/Ratzeburg."
Germany.
@misc{etde_10141613,
title = {Air pollution and forest damages at the `Postturm` forest district Farchau/Ratzeburg; Luftverunreinigungen und Waldschaeden am Standort ``Postturm``, Forstamt Farchau/Ratzeburg}
author = {Michaelis, W, and Bauch, J}
abstractNote = {During the period from 1986 through 1992 the ``Postturm`` forest district Farchau/Ratzeburg has been the site of an interdisciplinary research programme. 13 research institutions have contributed to this programme. Three field stations were established for `in situ` determination of inorganic and organic pollutants as well as physiological stress measurements in the crown of spruce trees. Stress and its correlation with tree damage was examined by studying biological and chemical parameters of needles, wood and fine roots, including soil chemical characters. The investigations were extended to studies on changes in wood structure and quality of physiologically damaged trees. In addition, aspects related to tree population genetics were considered. The results show that the ``Postturm`` site had, at least for short periods of time, suffered severe damage from gaseous pollutants. In the 1980`s dry depositions, of lead particularly, had reached and elevated damage level. This element had accumulated in the upper soil and, above all, in the fine roots located in that soil layer. A decreasing availability of nutrients combined with an increasing aluminum antagonism in mineral soil may also contribute to stress in spruce. In the trees investigated this stress can be partly compensated during periods of sufficient water supply. However, water deficiency as for instance during the dry year of 1992, led under the described stress constellation to chronic damage of the trees. The stress factors identified under field conditions on the site were verified by controlled labortory studies with model systems of that tree species. All activities of the project are now terminated. (orig./UWA). 246 figs., 57 tabs. [Deutsch] Am Standort ``Postturm`` wurde von 1986 bis 1992 ein interdisziplinares Forschungsprogramm ``Luftverunreinigungen und Waldschaeden`` gefoerdert. An drei Messstationen wurden die Belastung des Standortes durch anorganische und organische Schadstoffeintraege bestimmt und physiologische Versuche in den Baumkronen von Fichten und biologische und chemische Untersuchungen von Nadeln, Holz und Feinwurzeln sowie bodenchemische Analysen durchgefuehrt. Ausserden wurden Holzeigenschaften physiologisch geschaedigter Baeume ermittelt und populationsgenetische Aspekte eroertert. Es konnte gezeigt werden, dass die Fichten durch gasfoermige Schadstoffe zumindest kurzzeitigen Belastungen aus der Luft ausgesetzt sind. Zudem erreichten trockene Depositionen, insbesondere von Blei, in den 80er Jahren erhebliche Werte. Dieses Element ist im Oberboden und in den darin wachsenden Feinwurzeln angereichert. Eine verringerte Naehrelementverfuegbarkeit sowie ein verstaerkter Aluminium-Antagonismus im Mineralboden tragen ebenfalls zur Belastung der Fichten bei, die aber bei guter Wasserversorgung zum Teil kompensiert wird. Bei angespanntem Wasserhaushalt fuehrt eine derartige Belastungskonstellation jedoch zu chronischen Schaeden der Baeume. Die am Standort nachgewiesene Belastungskonstellation wurde unter Laborbedingungen an Modellsystemen mit Jungfichten nachgestellt. Die Befunde am Standort konnten damit weitgehend erklaert werden. Das Gesamtprojekt wurde abgeschlossen. (orig./UWA)}
place = {Germany}
year = {1992}
month = {Dec}
}
title = {Air pollution and forest damages at the `Postturm` forest district Farchau/Ratzeburg; Luftverunreinigungen und Waldschaeden am Standort ``Postturm``, Forstamt Farchau/Ratzeburg}
author = {Michaelis, W, and Bauch, J}
abstractNote = {During the period from 1986 through 1992 the ``Postturm`` forest district Farchau/Ratzeburg has been the site of an interdisciplinary research programme. 13 research institutions have contributed to this programme. Three field stations were established for `in situ` determination of inorganic and organic pollutants as well as physiological stress measurements in the crown of spruce trees. Stress and its correlation with tree damage was examined by studying biological and chemical parameters of needles, wood and fine roots, including soil chemical characters. The investigations were extended to studies on changes in wood structure and quality of physiologically damaged trees. In addition, aspects related to tree population genetics were considered. The results show that the ``Postturm`` site had, at least for short periods of time, suffered severe damage from gaseous pollutants. In the 1980`s dry depositions, of lead particularly, had reached and elevated damage level. This element had accumulated in the upper soil and, above all, in the fine roots located in that soil layer. A decreasing availability of nutrients combined with an increasing aluminum antagonism in mineral soil may also contribute to stress in spruce. In the trees investigated this stress can be partly compensated during periods of sufficient water supply. However, water deficiency as for instance during the dry year of 1992, led under the described stress constellation to chronic damage of the trees. The stress factors identified under field conditions on the site were verified by controlled labortory studies with model systems of that tree species. All activities of the project are now terminated. (orig./UWA). 246 figs., 57 tabs. [Deutsch] Am Standort ``Postturm`` wurde von 1986 bis 1992 ein interdisziplinares Forschungsprogramm ``Luftverunreinigungen und Waldschaeden`` gefoerdert. An drei Messstationen wurden die Belastung des Standortes durch anorganische und organische Schadstoffeintraege bestimmt und physiologische Versuche in den Baumkronen von Fichten und biologische und chemische Untersuchungen von Nadeln, Holz und Feinwurzeln sowie bodenchemische Analysen durchgefuehrt. Ausserden wurden Holzeigenschaften physiologisch geschaedigter Baeume ermittelt und populationsgenetische Aspekte eroertert. Es konnte gezeigt werden, dass die Fichten durch gasfoermige Schadstoffe zumindest kurzzeitigen Belastungen aus der Luft ausgesetzt sind. Zudem erreichten trockene Depositionen, insbesondere von Blei, in den 80er Jahren erhebliche Werte. Dieses Element ist im Oberboden und in den darin wachsenden Feinwurzeln angereichert. Eine verringerte Naehrelementverfuegbarkeit sowie ein verstaerkter Aluminium-Antagonismus im Mineralboden tragen ebenfalls zur Belastung der Fichten bei, die aber bei guter Wasserversorgung zum Teil kompensiert wird. Bei angespanntem Wasserhaushalt fuehrt eine derartige Belastungskonstellation jedoch zu chronischen Schaeden der Baeume. Die am Standort nachgewiesene Belastungskonstellation wurde unter Laborbedingungen an Modellsystemen mit Jungfichten nachgestellt. Die Befunde am Standort konnten damit weitgehend erklaert werden. Das Gesamtprojekt wurde abgeschlossen. (orig./UWA)}
place = {Germany}
year = {1992}
month = {Dec}
}