We present a new chironomid record from sediments of former Lake Švarcenberk in South Bohemia (412 m asl, Czech Republic), located in the oceanic-to-continental macroclimatic transitional zone of eastern Central Europe. We provide estimates of Weichselian Late Glacial and Early Holocene (ca. 15–8 ka BP) mean July air temperatures on the basis of changes in the fossil assemblage using a joint Norwegian-Swiss transfer function. In our study, the climate was found to be relatively cold during the Late Pleniglacial, with July temperatures ranging between 11.2 and 12.3 °C. With the exception of the youngest section of this interval, temperatures during the Bølling-Allerød interstadial were relatively stable and warm, with values around 13.3–14.5 °C. During the Younger Dryas (YD), July temperatures varied between 12.7 and 16 °C, and these particular results are in agreement with other climatic reconstructions from the central to the eastern part of the European continent showing no or moderate summer temperature decrease during the YD, or even a slightly warming trend. A relatively warm and climatically stable early YD phase was followed by a variable and overall cooler younger phase. At the beginning of the Early Holocene, our reconstructed July temperatures increased to 17.7 °C. We demonstrate that general patterns of temperature changes inferred from chironomids during the Last Glacial Termination are similar to various multi-proxy reconstructions in Europe but we observe two unusually strong and abrupt cooling events: one that may be linked with the Gerzensee oscillation at the end of the Bølling-Allerød Interstadial and another that probably corresponds to the Preboreal Oscillation, although the temperature decreases in these intervals were much more pronounced than observed in other chironomid records from Europe, suggesting that local climatic factors and ecosystem responses may have overamplified these cold events in the temperature reconstruction. However, other proxies (geochemistry, pollen) support the interpretation of climatically driven palaeoenvironmental changes such as the development of vegetation cover, changes in lake productivity, pedogenesis and erosion.

我们提供了来自南波希米亚（捷克共和国412 m asl）的前Švarcenberk湖沉积物的新记录，该沉积物位于中欧东部从海洋到大陆的宏观气候过渡带。我们使用挪威-瑞士联合传递函数，根据化石组合的变化，提供了魏氏的晚冰川期和全新世早期（约15-8 ka BP）的平均气温估算值。在我们的研究中，发现该地区的晚冰期气候相对寒冷，7月的温度介于11.2和12.3°C之间。除该间隔的最年轻部分外，Bølling-Allerød中间层的温度相对稳定且温暖，温度约为13.3–14.5°C。在青年树（YD）期间，7月的温度在12.7至16°C之间变化，这些特殊的结果与欧洲大陆中部到东部的其他气候重建结果一致，表明在YD期间夏季温度没有或没有适度下降，甚至略有变暖趋势。YD早期相对温暖和气候稳定，其后是变化多端且总体较凉的年轻阶段。在全新世初期，我们重建的7月温度升至17.7°C。我们证明了从最后一次冰河终结时期的天文学家推断出的温度变化的一般模式与欧洲的各种多代理重建相似，但我们观察到两个异常强烈且突然的降温事件：一个可能与Bølling-AllerødInterstadial结束时的Gerzensee振荡有关，另一个可能与原波涛涛震荡有关，尽管在这些时间间隔内温度的下降比欧洲其他Chironomid记录所观察到的要明显得多。当地的气候因素和生态系统的响应可能在温度重建过程中放大了这些寒冷事件。但是，其他代理人（地球化学，花粉）也支持对气候驱动的古环境变化的解释，例如植被覆盖的发展，湖泊生产力的变化，成岩作用和侵蚀。这表明当地的气候因素和生态系统的响应可能在温度重建中过度放大了这些寒冷事件。但是，其他代理人（地球化学，花粉）也支持对气候驱动的古环境变化的解释，例如植被覆盖的发展，湖泊生产力的变化，成岩作用和侵蚀。这表明当地的气候因素和生态系统的响应可能在温度重建中过度放大了这些寒冷事件。但是，其他代理人（地球化学，花粉）也支持对气候驱动的古环境变化的解释，例如植被覆盖的发展，湖泊生产力的变化，成岩作用和侵蚀。