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Sökning: onr:"swepub:oai:gup.ub.gu.se/196816" > Temporal evolution ...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003531naa a2200433 4500
001oai:gup.ub.gu.se/196816
003SwePub
008240528s2015 | |||||||||||000 ||eng|
024a https://gup.ub.gu.se/publication/1968162 URI
024a https://doi.org/10.1111/gcbb.121562 DOI
040 a (SwePub)gu
041 a eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Nelissen, Victoria4 aut
2451 0a Temporal evolution of biochar’s impact on soil nitrogen processes - a 15N tracing study
264 c 2014-06-19
264 1b Wiley,c 2015
520 a Biochar addition to soils has been proposed as a means to increase soil fertility and carbon sequestration. However, its effect on soil nitrogen (N) cycling and N availability is poorly understood. To gain better insight into the temporal variability of the impact of biochar on gross soil N dynamics, two 15N tracing experiments, in combination with numerical data analysis, were conducted with soil from a biochar field trial, 1 day and 1 year after application of a woody biochar type. The results showed accelerated soil N cycling immediately following biochar addition, with increased gross N mineralization (+34%), nitrification (+13%) and ammonium (NH4+) and nitrate (NO3−) immobilization rates (+4500% and +511%, respectively). One year after biochar application, the biochar acted as an inert substance with respect to N cycling. In the short term, biochar's labile C fraction and a pH increase can explain stimulated microbial activity, while in the longer term, when the labile C fraction has been mineralized and the pH effect has faded, the accelerating effect of biochar on N cycling ceases. In conclusion, biochar accelerates soil N transformations in the short-term through stimulating soil microbial activity, thereby increasing N bio-availability. This effect is, however, temporary.
650 7a LANTBRUKSVETENSKAPERx Annan lantbruksvetenskapx Förnyelsebar bioenergi0 (SwePub)405012 hsv//swe
650 7a AGRICULTURAL SCIENCESx Other Agricultural Sciencesx Renewable Bioenergy Research0 (SwePub)405012 hsv//eng
650 7a LANTBRUKSVETENSKAPERx Lantbruksvetenskap, skogsbruk och fiskex Markvetenskap0 (SwePub)401062 hsv//swe
650 7a AGRICULTURAL SCIENCESx Agriculture, Forestry and Fisheriesx Soil Science0 (SwePub)401062 hsv//eng
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Annan geovetenskap och miljövetenskap0 (SwePub)105992 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Other Earth and Related Environmental Sciences0 (SwePub)105992 hsv//eng
653 a nitrogen cycle
653 a biochar
653 a stable isotopes
653 a 15N;Biochar;field trial;gross transformation;immobilization;mineralization;nitrogen;tracing model
700a Rütting, Tobias,d 1977u Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences4 aut0 (Swepub:gu)xrutto
700a Huygens, Dries4 aut
700a Ruysschaert, G4 aut
700a Boeckx, Pascal4 aut
710a Göteborgs universitetb Institutionen för geovetenskaper4 org
773t Global Change Biology Bioenergyd : Wileyg 7:4, s. 635-645q 7:4<635-645x 1757-1693x 1757-1707
856u https://onlinelibrary.wiley.com/doi/pdfdirect/10.1111/gcbb.12156
8564 8u https://gup.ub.gu.se/publication/196816
8564 8u https://doi.org/10.1111/gcbb.12156

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