Abstract Paleopalynological records of 1.1 m deep lacustrine sediment profile from the central Indian Core Monsoon Zone (CMZ) have provided a prolonged warming trend over the last ca. 11,700 years. Palynological evidence suggests that between ca. 11,700 and 8500 cal yr BP, a mixed tropical deciduous forest occurred in the region under a warm and humid climate with good monsoon precipitation. The forest expanded into a dense mixed tropical deciduous forest since ca. 8500 cal yr BP to the present, under warm and relatively more humid climatic conditions with further increase in monsoon precipitation. This warm climatic phase represents the Holocene Climate Optimum (HCO) or Holocene Thermal Maximum (HTM). Prior to the initiation of the long warm period, an open vegetation occurred in the region between ca.14,100 and 11,700 cal yr BP, under a cool and dry climate, probably indicating reduced monsoon precipitation, and partially matching with the Older Dryas stadial. The present study provides insights into the vegetation dynamics and associated climatic changes in response to the Indian Summer Monsoon (ISM) variability over the last ~ 14.1 ka from a poorly understood area of the tropics in South Asia, where rainfall is essentially controlled by the ISM. In addition, an account of the asynchronous warming during the Holocene from the central Indian CMZ, as well as other tropical regions of the Indian sub-continent, has been presented here. Global contextualization of the Holocene warming has also been summarized in this communication.

中文翻译：

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在过去的ca中长时间变暖。距印度中部核心季风区 11,700 卡年：花粉证据和天气概览

摘要 来自印度中部核心季风区 (CMZ) 的 1.1 m 深湖相沉积物剖面的古孢粉学记录提供了过去大约 10 年的长期变暖趋势。11,700 年。孢粉学证据表明，在大约之间。11,700 和 8500 cal yr BP，该地区在温暖潮湿的气候下出现了混合热带落叶林，季风降水良好。自大约 20 年以来，森林扩展为茂密的混合热带落叶林。8500 cal yr BP 到现在，在温暖和相对更潮湿的气候条件下，季风降水进一步增加。这个温暖的气候阶段代表全新世气候最优 (HCO) 或全新世热最大值 (HTM)。在漫长的暖期开始之前，在大约 14,100 到 11,700 cal BP 之间的地区出现了开放的植被，在凉爽干燥的气候下，可能表明季风降水减少，部分与旧仙女木场相匹配。本研究提供了对过去约 14.1 ka 来自南亚热带地区知之甚少的印度夏季风 (ISM) 变化响应的植被动态和相关气候变化的见解，那里的降雨基本上由 ISM 控制. 此外，本文还介绍了印度中部 CMZ 以及印度次大陆其他热带地区在全新世期间异步变暖的情况。本通讯还总结了全新世变暖的全球背景。本研究提供了对过去约 14.1 ka 来自南亚热带地区知之甚少的印度夏季风 (ISM) 变化响应的植被动态和相关气候变化的见解，那里的降雨基本上由 ISM 控制. 此外，本文还介绍了印度中部 CMZ 以及印度次大陆其他热带地区在全新世期间异步变暖的情况。本通讯还总结了全新世变暖的全球背景。本研究提供了对过去约 14.1 ka 来自南亚热带地区知之甚少的印度夏季风 (ISM) 变化响应的植被动态和相关气候变化的见解，那里的降雨基本上由 ISM 控制. 此外，本文还介绍了印度中部 CMZ 以及印度次大陆其他热带地区在全新世期间异步变暖的情况。本通讯还总结了全新世变暖的全球背景。此处介绍了印度中部 CMZ 以及印度次大陆其他热带地区在全新世期间非同步变暖的情况。本通讯还总结了全新世变暖的全球背景。此处介绍了印度中部 CMZ 以及印度次大陆其他热带地区在全新世期间异步变暖的情况。本通讯还总结了全新世变暖的全球背景。