Snow algal communities on glaciers in the Suntar-Khayata Mountain Range in eastern Siberia, Russia
Snow algal communities on glaciers in the Suntar-Khayata Mountain Range in eastern Siberia, Russia
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俄罗斯东西伯利亚Suntar-Khayata山脉冰川上的雪藻群落
DOI：
10.1016/j.polar.2016.03.004
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发表时间：
2016
期刊：
影响因子：
1.8
通讯作者：
P.
中科院分区：
文献类型：
--
作者：
Tanaka;S.;Takeuchi;N.;Miyairi;M.;Fujisawa;Y.;Kadota;T.;Shirakawa;T. Kusaka;R.;Takahashi;S.;Enomoto;H.;Ohata,Yabuki;H.;Konya;K.;Fedorov;A.;Konstantinov;P.
在2012年至2014年的三个融化季节，对俄罗斯东西伯利亚Suntar-Khayata山脉的四个冰川进行了冰雪藻类群落调查。在冰川上观察到两个分类群的绿色藻类和五个分类群的蓝藻。藻类群落以绿色藻类为主，在低裸冰区为诺氏钩丝藻，在低裸冰区为绿单胞菌。在雪地上。总藻类生物量随海拔高度变化，范围为0.03至4.0 mL m−2，在冰川中部最大。藻类群落的海拔变化在所有研究的冰川上都是相似的，这表明它们在该地区是典型的。三年来的观察表明，群落结构没有显著变化，但总生物量发生了显著变化。由于2012年夏季平均气温明显较高，藻类生物量较大，因此各年藻类生物量的差异可能是由于表面融化的持续时间。所研究的冰川上的群落结构与北极和亚北极地区的冰川上的群落结构相似。
Snow and ice algal communities were investigated on four glaciers in the Suntar-Khayata Mountain Range in eastern Siberia in Russia over three melting seasons from 2012 to 2014. Two taxa of green algae and five taxa of cyanobacteria were observed on the glaciers. The algal community was dominated by green algae:Ancylonema nordenskioldiiin the lower bare ice area andChloromonassp. in the upper snow area. The total algal bio-volume showed altitudinal variation, ranging from 0.03 to 4.0 mL m−2, and was greatest in the middle of the glaciers. The altitudinal variations in the algal community were similar on all studied glaciers, suggesting that they are typical in this region. Observations over the three years revealed that there was no significant change in the community structure, but a significant change in the total biomass. Since the mean summer air temperature was significantly higher in 2012 when algal biomass was greater, the difference in algal biomass among the years is probably due to the duration of surface melting. The community structure on the studied glaciers is similar to those on glaciers in Arctic and sub-Arctic regions.