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Investigations on the nitrogen metabolism of forest trees by mathematical modelling of natural isotope ratios

Title data

Winkler, E. ; Gebauer, Gerhard:
Investigations on the nitrogen metabolism of forest trees by mathematical modelling of natural isotope ratios.
In: Isotopes in Environmental and Health Studies. Vol. 29 (1993) Issue 3 . - pp. 199-214.
ISSN 1477-2639
DOI: https://doi.org/10.1080/00211919308046687

Abstract in another language

Based on an experimental investigation of nitrogen concentrations and delta15N-values in different parts of Picea abies (L.) Karst. trees and soil samples and of their dependence on the age of plant parts and on damaging stress, mathematical models which represent main features of nitrogen turnover in the forest tree - soil system and associated isotope variations are developed. These models consider parts of 3 cycles of nitrogen: (1) transport of soluble nitrogen within trees, (2) turnover of protein nitrogen in different plant parts, and (3) the exchange of N between tree and soil via litter and the uptake of mineralized soil N by plant roots. Isotope effects of protein synthesis and mineralization of organic soil N are included. The models give a qualitative explanation of the data and lead to a better understanding of isotopic variations as indicators of forest damage.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER25899
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Plant Ecology
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 12 Nov 2015 07:44
Last Modified: 12 Nov 2015 07:44
URI: https://eref.uni-bayreuth.de/id/eprint/22478