Ecosystem analysis of Baikal Siberia using Palaeolithic faunal assemblages to reconstruct MIS 3 - MIS 2 environments and climate
Ecosystem analysis of Baikal Siberia using Palaeolithic faunal assemblages to reconstruct MIS 3 - MIS 2 environments and climate
复制标题
利用旧石器时代动物群对贝加尔湖西伯利亚生态系统进行分析，重建 MIS 3 - MIS 2 环境和气候
DOI：
10.1016/j.quaint.2016.06.026
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发表时间：
2016
影响因子：
2.2
通讯作者：
DN.
中科院分区：
文献类型：
--
作者：
Khenzykhenova;FI.;Shchetnikov;AA.;Sato;T.;Erbajeva;MA.;Semenei;EY.;Lipnina;EA.;Yoshida;K.;Kato;H.;Filinov;II.;Tumurov;EG.;Alexeeva;N.;Lokhov;DN.
对旧石器时代遗址的地质背景和动物群的综合研究使重建MIS 3 - MIS 2期间贝加尔湖西伯利亚的气候和环境成为可能。动物群的主要组成部分是小型哺乳动物，它们是过去景观和气候的可靠生物指标。在前贝加尔湖地区，从考古遗址中恢复的动物群呈现出混合的生态指标，其组成部分目前居住在不同的自然地带。在Bol'shoi Naryn和Gerasimov的地点研究的沉积物（可追溯到MIS 3）发现了大量苔原物种的动物；它的组成表明，在人类居住的时期，苔原-森林-草甸-草原的马赛克景观和寒冷潮湿的气候。马耳他遗址（MIS 2）的动物群表明，在萨尔坦冰期开始时，那里是苔原草原和恶劣气候。更新世末期和冰期后的证据表明，气候变暖变湿润。外贝加尔湖MIS 3站点中没有苔原动物。根据动物区系证据，在萨尔坦早期（MIS 2）存在干燥的草原和干旱气候，在更新世末期出现并增加了针叶林动物物种的重要性，此时森林分布广泛。贝加尔湖西南地区（近贝加尔湖地区）MIS 3站点的区系与外贝加尔湖相似，缺乏冻土带物种，以干草原和干旱气候指标为主。贝加尔湖西南部与前贝加尔湖地区更为相似，两者的森林物种比例都高于外贝加尔湖组合。动物群分布呈带状分布，河流沿岸的森林草原和草甸草原，山麓南侧的干草原和半荒漠。气候比外贝加尔湖地区温和，比前贝加尔湖地区温暖。不幸的是，我们很少有关于MIS 2的动物群的数据。
Integrated studies of the geological context and fauna of Palaeolithic sites made it possible to reconstruct climate and environments of Baikal Siberia during MIS 3 - MIS 2. The main constituents of the faunal assemblages are small mammals which are a reliable bioindicator of landscapes and climates of the past. In the Fore-Baikal area, fauna recovered from archaeological sites presents a mixture of ecological indicators, its components presently inhabiting different natural zones. The sediments studied at the Bol'shoi Naryn and Gerasimov's sites and dated to MIS 3 yielded fauna with a large proportion of tundra species; its composition suggests mosaic landscapes of tundra-forest-meadow-steppes and a cold humid climate at the time of human habitation. Fauna from the Malta site (MIS 2) is indicative of tundra-steppe and harsh climate at the beginning of the Sartan glaciation. Evidence from the end of the Pleistocene and postglacial, indicates the climate becoming warmer and wetter. Tundra animals are absent from MIS 3 sites of Transbaikalia. According to faunal evidence, dry steppe and arid climates existed at the early Sartan (MIS 2), and taiga animal species appeared and increased in importance towards the end of Pleistocene, when the forests had wide distribution. Fauna from MIS 3 sites in the southwestern Baikal area (Near-Baikal area) is similar to Transbaikalia, lacking tundra species and dominated by indicators of dry steppe and arid climates. The southwestern Baikal is more similar to Fore-Baikal area, both having a higher proportion of forest species than in Transbaikalian assemblages. The fauna distribution displays features of mosaic landscapes with distinctly identified zones: forest- and meadow-steppe along rivers, and dry steppe and semi-desert on south-facing slopes of mountains. The climate was milder than in the Transbaikal and warmer than in the Fore-Baikal area. Unfortunately, we have little data on the fauna of MIS 2.