Organic carbon stocks and sequestration rates of forest soils in Germany.
Bottom Line: We identified the organic layer C pool as stable although C was significantly sequestered under coniferous forest at lowland sites.The applied uncertainty analyses in this study link the variability of strata with measurement errors.In accordance to other studies for Central Europe, the results showed that the applied method enabled a reliable nationwide quantification of the soil C pool development for a certain period.
Affiliation: Johann Heinrich von Thünen Institute, Institute of Forest Ecosystems, Alfred-Möller-Straße 1, 16225, Eberswalde, Germany.Show MeSH
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Mentions: The NFSI I was conducted between 1987 and 1993 on a systematic 8 × 8 km grid. The soil inventory was repeated between 2006 and 2008 primarily at the same plots. Here, we used data from 1865 NFSI I plots and 1813 NFSI II plots. The resampling at the same plots indicates a paired sampling schema (Fig.1). In reference to the NFSI II, 624 plots were not resampled at the original NFSI I plots. On the new federal state-specific inventory grid, 577 new plots were established for sampling. The grid plots of NFSI I that were not resampled and the new established plots of the NFSI II were considered as an unpaired sampling schema. The standard method for soil sampling at the NFSI grid plots are comprised of eight satellite samples with a centralized soil profile (Fig.2). Satellites are located 10 m from the plot center (soil profile) in cardinal and intercardinal directions. Soil sampling plots of the NFSI II were shifted 10 Gon from NFSI I satellites.
Affiliation: Johann Heinrich von Thünen Institute, Institute of Forest Ecosystems, Alfred-Möller-Straße 1, 16225, Eberswalde, Germany.