2016
DOI: 10.1080/10256016.2016.1206093
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Spatial variations in larch needle and soil δ15N at a forest–grassland boundary in northern Mongolia

Abstract: The spatial patterns of plant and soil δN and associated processes in the N cycle were investigated at a forest-grassland boundary in northern Mongolia. Needles of Larix sibirica Ledeb. and soils collected from two study areas were analysed to calculate the differences in δN between needle and soil (ΔδN). ΔδN showed a clear variation, ranging from -8 ‰ in the forest to -2 ‰ in the grassland boundary, and corresponded to the accumulation of organic layer. In the forest, the separation of available N produced in… Show more

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Cited by 9 publications
(7 citation statements)
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“…In N limited environments such as tundra, terrestrial plants may receive relatively more N from inorganic sources. Boreal forests like those of the late Glacial Midwest, however, exhibit relatively greater biological productivity, so plant shoots are more likely to take in volatized ammonia (low δ 15 N) from organic sources such as urea (Fujiyoshi et al 2017). These results suggest a similar scale to landscape use strategies employed by late Quaternary mammoths in the Midwest as those suggested by Hoppe (Hoppe et al 1999;Hoppe 2004) for mammoths in the Great Plains and Florida.…”
Section: Discussionmentioning
confidence: 60%
“…In N limited environments such as tundra, terrestrial plants may receive relatively more N from inorganic sources. Boreal forests like those of the late Glacial Midwest, however, exhibit relatively greater biological productivity, so plant shoots are more likely to take in volatized ammonia (low δ 15 N) from organic sources such as urea (Fujiyoshi et al 2017). These results suggest a similar scale to landscape use strategies employed by late Quaternary mammoths in the Midwest as those suggested by Hoppe (Hoppe et al 1999;Hoppe 2004) for mammoths in the Great Plains and Florida.…”
Section: Discussionmentioning
confidence: 60%
“…In N-limited environments such as tundra, terrestrial plants may receive relatively more N from inorganic sources. Boreal forests like those of the Midwest during the Bølling and Allerød, however, exhibit relatively greater biological productivity, so plant shoots are more likely to take in volatized ammonia (low δ 15 N) from organic sources such as urea (Fujiyoshi et al, 2017).…”
Section: Discussionmentioning
confidence: 99%
“…The observation period was from June to August, 2004August, -2012 in Mongolia, whereas the sites in Hokkaido was observed from June to September, 2011-2013 (Table S1). To compare Mongolia with Hokkaido, we compiled new and published data (Fujiyoshi et al 2017) for Mongolia. Among observation areas in Mongolia, needle and soil δ N in Terelj (TR) and Mongonmorit (MM) areas have been reported in Fujiyoshi et al (2017).…”
Section: Site Descriptionmentioning
confidence: 99%
“…(1) difference in plant N source (Averill and Finzi 2011;Brearley 2013;Brenner et al 2001;Callesen et al 2013;Hobbie et al 1999); (2) nitrification progression (Kang et al 2011;Schuur and Matson 2001); and (3) N immobilization by soil microorganisms (Callesen et al 2013;Fujiyoshi et al 2017). In one example of the first cause, Δδ 15 N ranged from -3 to 0‰ with increasing elevation in the White Mountains, USA (Averill and Finzi 2011).…”
Section: Introductionmentioning
confidence: 99%
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