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Buchmann, Nina ; Oren, Ram ; Gebauer, Gerhard ; Schulze, Ernst-Detlef:
The use of stable isotopes in ecosystem research : first results of a field study with ¹⁵N.
In: Isotopes in Environmental and Health Studies.
Bd. 28
(1992)
Heft 1
.
- S. 51-59.
ISSN 1477-2639
DOI: https://doi.org/10.1080/00211919208050821
Abstract
Terrestrial ecosystems, e.g. forest ecosystems, are characterized by a complex and sensitive network of biotic and abiotic factors and their interactions. By using stable isotopes (e.g. labelled nitrogen compounds), very small addition rates of highly enriched compounds can be applied, which do not change or disturb the investigated system, but provide information about single processes, their interactions and especially about their dynamics.First results of a field study in the Fichtelgebirge, Northeast-Bavaria, Germany, are presented. The distribution of labelled nitrogen (as 15N-NH4+ and 15N-NO3-) within a spruce ecosystem (Picea abies (L.) Karst. in competition with understory vegetation of Vaccinium myrtillus, Calluna vulgaris and Deschampsia flexuosa) showed maximum 15N concentrations in tissues of the understory vegetation. During the first six weeks after the 15N application, the nitrogen uptake of all investigated species was higher after the 15N-NO3- treatment than after the 15N-NH4+ treatment.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | BAYCEER7320 |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Lehrstuhl Pflanzenökologie Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie Forschungseinrichtungen Forschungseinrichtungen > Forschungszentren |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik |
| Eingestellt am: | 12 Nov 2015 07:44 |
| Letzte Änderung: | 12 Nov 2015 07:44 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/22485 |