Soil Acidification in German Forest Soils

Autor: Nils König, Henning Meesenburg, Amalie Lauer, Winfried Riek, Nadine Eickenscheidt, Bernd Ahrends, Claus-Georg Schimming, Hans-Dieter Nagel, Heike Fortmann, Jan Evers, Karl Josef Meiwes, Nicole Wellbrock, Erik Grüneberg
Rok vydání: 2019
Předmět:
Zdroj: Ecological Studies ISBN: 9783030157326
Popis: Many forest soils are sensitive to acidification due to input of acids from the atmosphere. As acidic deposition was strongly reduced during the last decades, the question arises, if indications of recovery from soil acidification are detectable in German forest soils. The comparison of the National Forest Soil Inventory II (NFSI II) with the NFSI I showed a recovery of the organic layers and mineral topsoils, but further acidification of deeper soil layers at acid-sensitive substrates. Changes of the acid-base status of forest soils are indicated by pH value and base saturation. Where increases of pH were detected, these are higher for pH(H2O) as compared to pH(KCl). Limed soils experienced a stronger recovery from acidification than unlimed soils, especially if they are stocked with deciduous trees. In parts of northeastern Germany, extensive deposition of basic dust prior to NFSI I was leached from the soils between NFSI II and NFSI I resulting in strong acidification. The comparison with long-term studies of soil acidification suggests that acidification ceased in the period between the two inventories.
Databáze: OpenAIRE