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  • Gärdenäs, AnnemiekeSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment (author)

Knowledge gaps in soil carbon and nitrogen interactions - From molecular to global scale

  • Article/chapterEnglish2011

Publisher, publication year, extent ...

  • Elsevier BV,2011

Numbers

  • LIBRIS-ID:oai:slubar.slu.se:37527
  • ISBN:9789461731685
  • https://res.slu.se/id/publ/37527URI
  • https://doi.org/10.1016/j.soilbio.2010.04.006DOI
  • https://res.slu.se/id/publ/37528URI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • The objective of this review was to identify, address and rank knowledge gaps in our understanding of five major soil C and N interactions across a range of scales – from molecular to global. The studied five soil C and N interactions are: i) N controls on the soil emissions of greenhouse gases, ii) plant utilisation of organic N, iii) impact of rhizosphere priming on C and N cycling, iv) impact of black N on the stabilisation of soil organic matter (SOM) and v) representation of fractions of SOM in simulation models. We ranked the identified knowledge gaps according to the importance we attached to them for functional descriptions of soil–climate interactions at the global scale, for instance in general circulation models (GCMs). Both the direct and indirect influences on soil–climate interactions were included. We found that the level of understanding declined as the scale increased from molecular to global for four of the five topics. By contrast, the knowledge level for SOM simulation models appeared to be highest when considered at the ecosystem scale. The largest discrepancy between knowledge level and importance was found at the global modelling scale. We concluded that a reliable quantification of greenhouse gas emissions at the ecosystem scale is of utmost importance for improving soil–climate representation in GCMs. We see as key questions the identification of the role of different N species for the temperature sensitivity of SOM decomposition rates and its consequences for plant available N

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  • Ågren, GöranSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology(Swepub:slu)50870 (author)
  • Clarholm, MarianneSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig mykologi och patologi,Department of Forest Mycology and Pathology(Swepub:slu)46668 (author)
  • Hallin, SaraSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mikrobiologi,Department of Microbiology(Swepub:slu)48245 (author)
  • Kätterer, ThomasSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment(Swepub:slu)48437 (author)
  • Nilsson, IngvarSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment(Swepub:slu)47210 (author)
  • Näsholm, TorgnySwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management(Swepub:slu)48242 (author)
  • Persson, TryggveSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology(Swepub:slu)50814 (author)
  • Stendahl, JohanSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment(Swepub:slu)50289 (author)
  • Sveriges lantbruksuniversitetInstitutionen för mark och miljö (creator_code:org_t)
  • Sveriges lantbruksuniversitet

Related titles

  • In:Soil Biology and Biochemistry: Elsevier BV43, s. 702-7170038-07171879-3428

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