@article{oai:nipr.repo.nii.ac.jp:00006266,
 author = {Adachi, Minaco and Ohtsuka, Toshiyuki and Nakatsubo, Takayuki and Koizumi, Hiroshi},
 journal = {Polar bioscience},
 month = {Dec},
 note = {P(論文), In order to examine the relationship between the methane (CH_4) flux and soil factors and vegetation in High Arctic tundra, we investigated the CH_4 flux along topographical gradients on a glacier foreland in Ny-Alesund, Svalbard (79°N, 12°E). The CH4 flux rates varied widely among sites even within the same vegetation type, ranging from positive (emission) to negative (absorption) values. High CH_4 emission rates were detected on ridges and in sites with a low soil water content, but there was no significant relationship between CH_4 flux rates and soil factors including soil moisture, pH, soil carbon and nitrogen content. Mean values of CH_4 emission and CH_4 absorption were 0.30±0.33 mg m^(-2) h^(-1) (n=12) and 0.11±0.06 mg m^(-2) h^(-1) (n=11), respectively. These findings suggest that the study area is a small source of CH_4 with a mean flux of 0.11 mg CH_4 m^(-2) h^(-1) (0.083 mg C m^(-2) h^(-1)). It was concluded that carbon flux derived from CH_4 accounts for an extremely small proportion of the total carbon flux from soil in this area.},
 pages = {131--139},
 title = {The methane flux along topographical gradients on a glacier foreland in the High Arctic, Ny-Alesund, Svalbard},
 volume = {20},
 year = {2006}
}