Fire history and its drivers based on peatland charcoal analysis in the Changbai Mountains, north-east China, during the last 13 000 years
Meng Meng D , Dongmei Jie
A B C D F , Dehui Li D F , Nannan Li D , Baojian Liu E , Guizai Gao A B C D , Jiangyong Wang D , Honghao Niu D , Ying Liu D and Guihua Zhang D
+ Author Affiliations
- Author Affiliations
A Key Laboratory of Geographical Processes and Ecological Security in Changbai Mountains, Ministry of Education, Changchun 130024, China.
B Institute for Peat and Mire Research, State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Northeast Normal University, Renmin 5268, Changchun 130024, China.
C Key Laboratory of Vegetation Ecology, Ministry of Education, Changchun 130024, China.
D School of Geographical Sciences, Northeast Normal University, Renmin 5268, Changchun 130024, China.
E School of Life Science, Jilin Normal University, Siping 136000, China.
F Corresponding authors. Email: jiedongmei@nenu.edu.cn; lidh357@nenu.edu.cn
International Journal of Wildland Fire 29(9) 841-854 https://doi.org/10.1071/WF19168
Submitted: 11 October 2019 Accepted: 28 April 2020 Published: 29 May 2020
Abstract
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 13 000 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.
Additional keywords: forests, Holocene, late glacial period, palaeoenvironment.
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