长白山地泥炭分布、沉积速率与全新世气候变化  

Distribution,Accumulation Rate of Peat in the Changbaishan Mountains and Climate Change in Holocene

作　　者：赵红艳[1] 冷雪天[1] 王升忠[1] 

机构地区：[1]东北师范大学泥炭沼泽研究所,吉林长春130024

出　　处：《山地学报》2002年第5期513-518,共6页Mountain Research

基　　金：国家自然科学基金 (项目编号 :4973 3 10 );东北师大青年基金 (项目号 :1113 74)资助

摘　　要：本文阐述了长白山地泥炭分布规律 ,计算了泥炭厚度累积速率和碳累积速率。早全新世泥炭仅在南部局地沉积 ,速率较小 ,中全新世沉积普遍 ,速率最大 ,晚全新世继续沉积 ,速率较大 ;相应地 ,气候上早全新世开始转暖 ,偏凉 ,中全新世温暖湿润 ,晚全新世偏冷、偏湿。这一结论与孢粉分析。Big peat resources, concentrating distribution, successive deposit, big accumulation rate and various types in Changbaishan Mountains make the Peat in the area become a good information carrier of paleo environment. The distributional rules and deposit peat rate are significant for studying carbon cycle and climate change in Holocene. The samples from the cores or profiles in the typical peatlands are dated by conventional 14 C datings as calibrated.Thickness accumulation rate and carbon accumulation are studied in the light of peat stratigraphical data. The results are showed as the following:bog peat formed in about 2 500 a B.P.is distributed in the high altitude east and south of this area while fen peat is distributed widely.Old peat or covered peat is distributed in the south while new peat and buried peat is distributed under 600 meter ,bog peat is between 1 000～1 800 meter,the mixed type of peat is between 600～1 000 meter. Peat deposit only in the some area of south in the early Holocene epoch while widely deposit in the mid Holocene and successive deposit in the late Holocene. The thickness accumulation rate and carbon accumulation rate of peat in this area are higher than that in the other area in China and some area in europe.The two kinds of rate of peat from the same plot in the different period or the different plot in the same period show the same results, that is the rate is small in the early Holocene while highest rate in the mid Holocene and middle high rate in the late Holocene. Accordingly, the climate begins to become warm, on the cool and humid side in the late Holocene in the early Holocene epoch while on the warm and humid side in the mid Holocene and on the cold and humid side in the late Holocene in the area.

关 键 词：分布 沉积速率 全新世 泥炭 气候变化 长白山 地层分析 孢粉分析 同位素 

分 类 号：P512.2[天文地球—地质学] P467