The Arctic in the Twenty-First Century: Changing Biogeochemical Linkages across a Paraglacial Landscape of Greenland.
The Arctic in the Twenty-First Century: Changing Biogeochemical Linkages across a Paraglacial Landscape of Greenland.
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DOI：
10.1093/biosci/biw158
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发表时间：
2017-02-01
期刊：
影响因子：
10.1
通讯作者：
Yde JC
中科院分区：
文献类型：
--
作者：
Anderson NJ;Saros JE;Bullard JE;Cahoon SMP;McGowan S;Bagshaw EA;Barry CD;Bindler R;Burpee BT;Carrivick JL;Fowler RA;Fox AD;Fritz SC;Giles ME;Hamerlik L;Ingeman-Nielsen T;Law AC;Mernild SH;Northington RM;Osburn CL;Pla-Rabès S;Post E;Telling J;Stroud DA;Whiteford EJ;Yallop ML;Yde JC
格陵兰岛西南部的Kangerlussuaq地区包括不同的生态，地貌和气候梯度，在一系列的空间和时间尺度上发挥作用。生态系统的范围从冰盖上的微生物群落和水分胁迫的陆地植被（及其相关的食草动物）到淡水湖和低盐湖泊。这些生态系统由动态的冰川-河流-风成地貌系统联系在一起，该系统将水、地质物质、有机碳和营养物质从冰川表面输送到邻近的陆地和水生系统。由于自2000年以来区域迅速变暖，这一副冰系现在正发生重大变化。在这里，我们描述了生态和地貌系统在一系列的时间尺度的变化，并探讨未来的快速变化的链接，整合这些系统。我们强调了跨系统补贴在景观尺度上的重要性，更重要的是，随着北极预计将继续变暖，这些补贴在不久的将来可能会发生变化。
The Kangerlussuaq area of southwest Greenland encompasses diverse ecological, geomorphic, and climate gradients that function over a range of spatial and temporal scales. Ecosystems range from the microbial communities on the ice sheet and moisture-stressed terrestrial vegetation (and their associated herbivores) to freshwater and oligosaline lakes. These ecosystems are linked by a dynamic glacio-fluvial-aeolian geomorphic system that transports water, geological material, organic carbon and nutrients from the glacier surface to adjacent terrestrial and aquatic systems. This paraglacial system is now subject to substantial change because of rapid regional warming since 2000. Here, we describe changes in the eco- and geomorphic systems at a range of timescales and explore rapid future change in the links that integrate these systems. We highlight the importance of cross-system subsidies at the landscape scale and, importantly, how these might change in the near future as the Arctic is expected to continue to warm.