火情
木炭
泥炭
温带雨林
自然地理学
北方的
地理
火灾历史
生态系统
东亚季风
环境科学
植被(病理学)
全新世
泥炭藓
气候变化
泰加语
生态学
孢粉学
降水
考古
林业
气象学
病理
冶金
材料科学
医学
生物
作者
Meng Meng,Dongmei Jie,Dehui Li,Nannan Li,Baojian Liu,Guizai Gao,Jiangyong Wang,Honghao Niu,Ying Liu,Guihua Zhang
出处
期刊:International Journal of Wildland Fire
[CSIRO Publishing]
日期:2020-05-29
卷期号:29 (9): 841-841
被引量:2
摘要
The Changbai Mountains forest ecosystem is one of the best-preserved temperate mountain forest ecosystems in Asia. Since the establishment of the reserve in 1960, extensive forest fires have been excluded as a result of strict regulation and suppression efforts and thus fuels have accumulated for several decades. Due to the lack of historical fire records in the area, the risk of fire occurrence cannot be properly estimated. In this study, we used charcoal records to reconstruct the palaeo-fire frequency in the Changbai Mountains during the last 13000 years. The results indicate that fires were frequent during 13.0–11.0, 7.0–6.0, and 2.5–2.0 calender (cal) kyr before present (BP) and from 1.0 cal kyr BP to the present. The fire frequencies are largely consistent with other palaeoenvironmental records from the study area and we conclude that since 13.0 cal kyr BP fires were more frequent at the regional scale during intervals of a weak summer monsoon, caused by a cold and dry climate and the abundance of flammable trees. Archaeological data from the study area since 3.0 cal kyr BP indicate increasing human activity, which dominated the occurrence of local fires. In addition, intermittent volcanic activity influenced the occurrence of fires during the past millennium.
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