@article{oai:nipr.repo.nii.ac.jp:00010220, author = {Yoshitake, Shinpei and Uchida, Masaki and Ohtsuka, Toshiyuki and Kanda, Hiroshi and Koizumi, Hiroshi and Nakatsubo, Takayuki and Yoshitake, Shinpei and Uchida, Masaki and Ohtsuka, Toshiyuki and Kanda, Hiroshi and Koizumi, Hiroshi and Nakatsubo, Takayuki}, issue = {3}, journal = {Polar science, Polar science}, month = {Sep}, note = {The distribution of organic carbon and its relationship to vegetation development were examined on a glacier foreland near Ny-Alesund, Svalbard (79°N). In a 0.72-km2 area, we established 43 study plots on three line transects along primary succession from recently deglaciated area to old well-vegetated area. At each plot, we measured the type and percent coverage of vegetation types. The organic carbon content of vegetation, organic soil, and mineral soil samples was determined based on their organic carbon concentration and bulk density. Cluster analysis based on vegetation coverage revealed five types of ground surfaces representing variations in the amounts and allocation patterns of organic carbon. In the later stages of succession, 7%-24% and 31%-40% of organic carbon was contained in the organic and deeper soil layers, respectively. Organic carbon storage in the later stages of succession ranged from 1.1 - 7.9 kg C m^<-2>. A larger amount of organic carbon, including ancient carbon in a raised beach deposit, was expected to be contained in much deeper soil layers. These results suggest that both vegetation development and geological history affect ecosystem carbon storage and that a non-negligible amount of organic carbon is distributed in this High Arctic glacier foreland., 高緯度北極の氷河後退域における広域での炭素蓄積量の分布およびその植生との関係性を明らかにするため、高緯度北極ニーオルスンの氷河後退域において、植生調査および有機炭素蓄積量の算出を行った。植生被度に基づくクラスター解析では本調査地の植生は5グループに分類され、炭素蓄積量やその分配パターンはグループ間で異なっていた。また、鉱質土層20 cmまでの炭素蓄積量は遷移後期エリアでは1.1−7.9 kg C m-2であったが、本調査地のより深層には隆起海岸堆積物に由来する炭素が多く含まれていることが考えられた。以上のことより、高緯度北極の氷河後退域では植生や地質学的履歴が炭素蓄積量に影響すること、そして無視できない量の炭素が蓄積されていることが示された。}, pages = {391--397}, title = {Vegetation development and carbon storage on a glacier foreland in the High Arctic, Ny-Alesund, Svalbard}, volume = {5}, year = {2011} }