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Carbon and nitrogen isotope composition of vegetation on King George Island, maritime Antarctica

Cited 23 time in wos
Cited 35 time in scopus
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dc.contributor.authorLee, Yong Il-
dc.contributor.authorYoon, Ho Il-
dc.contributor.authorLim, Hyoun Soo-
dc.description.abstractWe report abundance of 13C and 15N contents in terrestrial plants (mosses, lichens, liverworts, algae and grasses) from the area of Barton Peninsula (King George Island, maritime Antarctic). The investigated plants show a wide range of d13C and d15N values between -29.0 and -20.0% and between -15.3 and 22.8%, respectively. The King George Island terrestrial plants show species specificity of both carbon and nitrogen isotope compositions, probably due to differences in plant physiology and biochemistry, related to their sources and in part to water availability. Carbon isotope compositions of Antarctic terrestrial plants are typical of the C3 photosynthetic pathway. Lichens are characterized by the widest carbon isotope range, from -29.0 to -20.0%. However, the average d13C value of lichens is the highest (-23.6 ± 2.8%) among King George Island plants, followed by grasses (-25.6 ± 1.7%), mosses (-25.9 ± 1.6%), liverworts (-26.3 ± 0.5%) and algae (-26.3 ± 1.2%), partly related to habitats controlled by water availability. The d15N values of moss samples range widest (-9.0 to 22.8%, with an average of 4.6 ± 6.6%). Lichens are on the average most depleted in 15N (mean = -7.4 ± 6.4%), whereas algae are most enriched in 15N (10.0 ± 3.3%). The broad range of nitrogen isotope compositions suggest that the N source for these Antarctic terrestrial plants is spatially much variable, with the local presence of seabird colonies being particularly significant.-
dc.subjectBiodiversity & Conservation-
dc.subjectEnvironmental Sciences & Ecology-
dc.titleCarbon and nitrogen isotope composition of vegetation on King George Island, maritime Antarctica-
dc.title.alternative남극 킹죠지섬 식생의 탄소 및 질소 동위원소 조성 연구-
dc.identifier.bibliographicCitationLee, Yong Il, Yoon, Ho Il, Lim, Hyoun Soo. 2009. "Carbon and nitrogen isotope composition of vegetation on King George Island, maritime Antarctica". <em>POLAR BIOLOGY</em>, 32(11): 1607-1615.-
dc.citation.titlePOLAR BIOLOGY-
dc.description.jcrRateJCR 2007:44.827586206896555-
dc.subject.keywordMaritime Antarctic-
dc.subject.keywordNitrogen sources-
dc.subject.keywordStable isotopes-
Appears in Collections  
2009-2010, Reconstruction of paleoclimate and paleoceanography of polar regions to understand the response of future global warming (09-10) / Lee, Jae Il
2007-2010, Studies on the soil geochemistry and patterned ground in the polar regions: implications for paleoclimatic and paleoenvironmental changes during the late Quaternary (07-10) / Yoon, Ho Il
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