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Stable S isotopes as indicators for Sulphur immission and turnover in ecosystems
Project
Project code: vTI-AK-02-26
Contract period: 01.01.1999
- 30.04.1999
Purpose of research: Applied research
The stable S isotope composition differs in sulphur (S) of different origin. S originating from fossil fuel as well as S from fertiliser has a S isotopic composition that clearly differs from naturally occurring S in soils of e.g. agricultural or forest stands. Hence, it is possible to trace S deriving from fertilisers added to agricultural stands as plant nutrient on its way through the agroecosystem. Airborne pollutants containing S - e.g. as SO2 produced during combustion of fossil fuels - might as well be traced by means of stable S isotope analysis in different compartments of an ecosystem under evaluation. Tree rings, built up one per year of tree growth, reflect the environmental situation in that particular year concerning nutrients, water supply, harmful substances etc.. Therefore, analysis of S isotopic composition in tree rings should allow a retrospective analysis of changes in pollution effects at a given location.
Section overview
Subjects
- Agroecology
- Climate Change
