کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4683461 | 1349311 | 2008 | 5 صفحه PDF | دانلود رایگان |

We measured and compared the δ13C values and nitrogen concentrations within the photosynthetic parts (Np) of phototrophs growing in different successional stages and different soil conditions at Ny-Ålesund, Svalbard, Norway. At all study sites, the Np value of vascular plants ranged from 1.0 to 2.2%. The Np value for most moss species was less than 1.0%; values for lichens were about 0.5%. No significant correlation was detected between Np and δ13C; however, different plant species occupied distinct fields on a δ13C–Np plot, with minimal overlap between species. The Np value of Saxifraga oppositifolia, which grew at all of the study sites, ranged from 1.1 to 1.5%. Differences in growth form had no effect on Np. The Np and δ13C values obtained for S. oppositifolia were confined to within a narrow range regardless of site conditions.
Journal: Polar Science - Volume 2, Issue 2, 25 June 2008, Pages 143–147