中国全新世大暖期盛期气候带区的划分

Division of climatic zones during the peak of the holocene warm period in China

全新世大暖期是全新世期间一次较为明显的暖期,主要特征有:降水量增加,气温上升,植被带北移西迁.这个时段时限较宽,包括了一些冷波动和在水分热量搭配上的气候不良波动,当时中国的气候和环境发生明显的变化.本文在搜集和整理各种文献资料、气候图集的基础上对全新世气候区划进行划分,结果表明中国全新世大暖期气候区划与现代气候区划相比,除青藏高原外,各气候带的划分整体上比现在界线偏北,且没有寒温带的存在;中国全新世大暖期东部气候带显著北移,湿润区的北界也在秦岭-淮河一线以北;新疆地区干旱区的范围和现代相比有明显的收缩;内蒙古地区气候总体变化不大,局部有一定变化,但总体上仍为中温带控制;其余南方地区的变化和现代变化总体上不大.目前全球变暖是最大的气候事件,中国全新世气候变化的研究也是古气候研究中重要的一部分,研究全新世大暖期气候变化,尤其是当时气候带的空间分布对于理解当今全球变暖背景下的环境变化将大有裨益.

The holocene warm period is a relatively obvious warm period during the holocene,the main characteristics are:increased precipitation,increased temperature,and the vegetation belt moved north and West.This period has a wide time limit,including some cold fluctuations and adverse climate fluctuations in the combination of water and heat.The great warm period was used to replace the previously widely used but narrow high-temperature period and climate optimum period,when China's climate and environment changed significantly.This paper divides Holocene climate divisions on the basis of collecting and collating various literature data and climate atlases.The results show that China’s Holocene climate divisions during the Great Warm Period are compared with modern climate divisions.The division is generally norther than the current boundary,and there is no cold temperate zone;the eastern climate zone of China during the holocene great warm moved significantly north,and the northern boundary of the humid zone is also north of the Qinling-Huaihe line;the arid zone in Xinjiang compared with modern times,there is a significant contraction;the overall climate in Inner Mongolia has not changed much,with some changes in some parts,but it is still controlled by the middle temperate zone on the whole;the changes and modern changes in the remaining southern areas are generally not large.At present,global warming is the largest climate event.Studying climate changes during the holocene great warm period,especially the spatial distribution of climate zones at that time,will be of great benefit to understanding environmental changes in the context of today's global warming.