Podrobnosti záznamu

Název
    Major changes in forest carbon and nitrogen cycling caused by declining sulphur deposition
Autor
    Cudlín, Pavel
    Evans, Christopher
    Hofmeister, Jeňýk
    Hruška, Jakub
    Krejčí, Radovan
    Oulehle, Filip
    Persson, Tryggve
    Tahovská, Karolína
Jazyk
    anglicky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Global Change Biology
Svazek/č.
    Roč. 17, č. 10
Strany
    16
Rok
    2011
Výraz tezauru
    sulphur, nitrogen, carbon, DOC, deposition, leaching, forest floor, soil, acidification, nitrogen saturation
Klíčové slovo
    Carbon
    Caused
    Changes
    Cycling
    Declining
    Deposition
    Forest
    Major
    Nitrogen
    Sulphur
Abstrakt (anglicky)
   Sulphur (S) and nitrogen (N) deposition are important drivers of the terrestrial carbon (C) and N cycling. We analyzed changes in C and N pools in soil and tree biomass at a highly acidified spruce site in the Czech Republic during a 15-year period. Total S deposition decreased from 5 to 1.1 g m-2 yr-1 between 1995 and 2009, while bulk N deposition did not change. Over the same period, C and N pools in the Oa horizon declined by 116 g C and 4.2 g N m-2 yr-1, a total decrease of 47% and 42%, respectively. This loss of C and N probably originated from organic matter (OM) that had accumulated during the period of high acid deposition when litter decomposition was suppressed. Our results demonstrate that reducing S deposition has had a profound impact on forest organic matter cycling, leading to a reversal of historic ecosystem N enrichment, cessation of nitrate leaching, and a major loss of accumulated organic soil C and N stocks.
Přispěvatel
    Česká geologická služba
Kód přispěvatele
    ČGS (RIV)
Zdrojový formát
    R
Datum importu
    15. 10. 2014