Characteristics of samples obtained during Pokhodsk 2012-2013 campaigns in the joint Russian-German POLYGON Project@en

Polygonal tundra, thermokarst basins and pingos are common and characteristic periglacial features of arctic lowlands underlain by permafrost in Northeast Siberia. Modern polygonal mires are in the focus of biogeochemical, biological, pedological, and cryolithological research with special attention to their carbon stocks and greenhouse-gas fluxes, their biodiversity and their dynamics and functioning under past, present and future climate scenarios. Within the frame of the joint German-Russian DFG-RFBR project Polygons in tundra wetlands: state and dynamics under climate variability in Polar Regions (POLYGON) field studies of recent and of late Quaternary environmental dynamics were carried out in the Indigirka lowland and in the Kolyma River Delta in summer 2012 and summer 2013. […]多边形苔原 (polygonal tundra)、热喀斯特盆地 (thermokarst basins) 与冰核丘 (pingos) 是西伯利亚东北部下伏多年冻土 (permafrost) 的北极低地常见且典型的冰缘地貌 (periglacial features)。现代多边形沼泽湿地已成为生物地球化学、生物学、土壤学与冻土学研究的焦点，相关研究尤为关注其碳储量、温室气体通量、生物多样性，以及其在过去、当前与未来气候情景下的动态过程与功能机制。在德俄联合DFG-RFBR项目"苔原湿地中的多边形体：极地气候变异下的状态与动态"(POLYGON) 框架内，研究团队于2012年夏季与2013年夏季在因迪吉尔卡低地及科雷马河三角洲开展了近代与晚第四纪环境动态的野外实地调查。[…]