小冰期气候的研究进展

小冰期是近2ka来的一个重要气候事件,又是目前全球变暖的背景事件,已成为古气候和古环境研究的热点。对此,科学工作者已经做了大量的研究。本文广泛综合前人研究的成果,介绍了小冰期的概况,认为1450-1890年是小冰期的时限,在此期间有三次冷期和两次暖期。冷期发生在1450-1510年、1560-1690年和1790-1890年,其中第二次冷期表现最甚;暖期发生在1510-1560年和1690-1790年。太阳活动和火山活动是小冰期气候变化的主要因素。并重点从冰芯、树轮、湖泊沉积、历史文献和沙漠地层等方面综述了近年来国内外对小冰期气候变化的研究现状。

Advances of Climate Research in the Little Ice Age

The Little Ice Age is a major climatic event during latest {2 000} years, and the prelude to global warming. It has become a hot topic of palaeoclimatic and palaeoenvironmental studies, so till now there have been many research achievements about it. Reviewing the achievements, this paper synthetically introduces the Little Ice Age that occurred during1450_1890 AD. Wherein, there were three cold periods:1450_1510 AD,1560_1690 AD and 1790_1890 AD, among which the second one is the coldest, and two warm periods: 1510_1560 AD and 1690 1790 AD. The solar activity and volcanic eruptions are the main factors of climatic changes during the Little Ice Age. The paper has given an overview on domestic and abroad research status of the climatic changes during The Little Ice Age, mainly depending on the different proxies such as ice cores, tree-ring, lake sediment, documentary and desert semimetal strata.