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Sammanfattning

Significant areas of temperate forests in Central Europe, NE America and E Asia receive high amounts of N deposition. According to the few studies available, suspension of the N load leads to reductions in both inorganic soil N and leaching of N within a few years. We report that, surprisingly, N is still mineralized at high rates 14 yr after suspension of a previous N-load of > 100 kg N/ha yr for 20 yr. In this treatment, gross N mineralization rates exceeded those in control plots by a factor 3, but equaled those in still on-going (34 yr of) treatments with 30 and 60 kg N/ha yr, in which levels of extractable NH4+ were up to 10 times higher. (c) 2006 Elsevier Ltd. All rights reserved

Publicerad i

Soil Biology and Biochemistry
2006, volym: 38, nummer: 7, sidor: 2001-2003
Utgivare: PERGAMON-ELSEVIER SCIENCE LTD

SLU författare

  • Chen, Yu

    • Institutionen för skogsekologi, Sveriges lantbruksuniversitet

  • Högberg, Peter

    • Institutionen för skogsekologi, Sveriges lantbruksuniversitet

UKÄ forskningsämne

Miljö- och naturvårdsvetenskap

Publikationens identifierare

  • DOI: https://doi.org/10.1016/j.soilbio.2005.11.026

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/8922