Climate and environment in southwest Sweden 15.5–11.3 cal. ka BP
Climate and environment in southwest Sweden 15.5–11.3 cal. ka BP
复制标题
瑞典西南部的气候和环境 15.5–11.3 ka BP
DOI：
10.1111/bor.12310
复制
发表时间：
2018
期刊：
影响因子：
2.2
通讯作者：
R. Smittenberg
中科院分区：
文献类型：
--
作者：
B. Wohlfarth;T. Luoto;F. Muschitiello;M. Väliranta;S. Björck;S. Davies;M. Kylander;K. Ljung;P. Reimer;R. Smittenberg
北欧很少有湖泊沉积记录，可以记录在最后一次终止的早期阶段不同的气候和环境变化。因此，对瑞典西南部Atteköpsmosse沉积物的多代理研究填补了一个重要空白，并提供了有关过去水文气候条件和当地环境对气候变化反应的详细信息。约15.5卡路里的湖水开始填塞。Ka BP，但水生生产力低，夏季湖水温度低，流域不稳定，草本植物和灌木植被稀少，直到14.7-14.5卡。Ka BP。较暖气团的流入和较高的7月气温有利于水生生产力和湖水夏季温度的上升，并建立了多样化的草本植物、灌木和矮灌木植被，其中还包括14.5卡的白桦树。Ka BP。清新水分源区约13.7-13.6卡。Ka BP似乎对古湖及其集水区没有太大影响，因为湖泊水生生产力进一步提高，湖水夏季温度和7月最低平均气温保持在12-14℃左右。Ka BP引发了湖泊生产力的下降，条件更加干燥，夏季湖水温度下降。13-12.8卡的白桦和樟子松的宏观发现。Ka BP证明了这些树在湖的集水区的存在。过渡到全新世(11.6-11.5卡。Ka BP)的特征是摇摆虫组合的变化，以及湖水夏季温度和水生生产力的上升。在这些变化之后，在11.4卡处重建了多样化的水生和陆地植被，包括树桦和樟子松。Ka BP。
Lake sedimentary records that allow documentation of the distinct climatic and environmental shifts during the early part of the Last Termination are scarce for northern Europe. This multi‐proxy study of the sediments of Atteköpsmosse, southwest Sweden, therefore fills an important gap and provides detailed information regarding past hydroclimatic conditions and local environmental responses to climatic shifts. Lake infilling started c. 15.5 cal. ka BP, but low aquatic productivity, cold summer lake water temperatures, unstable catchments, and scarce herb and shrub vegetation prevailed until c. 14.7–14.5 cal. ka BP. Inflow of warmer air masses and higher July air temperatures favoured a rise in aquatic productivity and lake water summer temperatures, and the establishment of a diverse herb, shrub and dwarf shrub vegetation, which also included tree birch c. 14.5 cal. ka BP. Freshening of the moisture source region c. 13.7–13.6 cal. ka BP does not seem to have had a large impact on the ancient lake and its catchment, as lake aquatic productivity increased further and lake water summer temperatures and minimum mean July air temperatures remained around 12–14 °C. In contrast, further freshening of the moisture source region c. 13 cal. ka BP triggered a decrease in lake productivity, drier conditions and lower lake water summer temperatures. Macroscopic finds of tree Betula and Pinus sylvestris at 13–12.8 cal. ka BP demonstrate the presence of these trees in the lake's catchment. The transition into the Holocene (11.6–11.5 cal. ka BP) is marked by a change in chironomid assemblages and by a rise in lake water summer temperatures and aquatic productivity. These changes were followed by the re‐establishment of a diverse aquatic and terrestrial vegetation, including tree birch and Pinus sylvestris at 11.4 cal. ka BP.
影响因子：
5
作者：
D. Sachse;J. Radke;G. Gleixner
通讯作者：
D. Sachse;J. Radke;G. Gleixner
影响因子：
3
作者：
Aichner, Bernhard;Herzschuh, Ulrike;Boehner, Juergen
通讯作者：
Boehner, Juergen