DOI: 10.1016/j.quascirev.2017.11.007
Scopus记录号: 2-s2.0-85034766087
论文题名: Long-term fire activity under the East Asian monsoon responding to spring insolation, vegetation type, global climate, and human impact inferred from charcoal records in Lake Biwa sediments in central Japan
作者: Inoue J. ; Okuyama C. ; Takemura K.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2018
卷: 179 起始页码: 59
结束页码: 68
语种: 英语
英文关键词: Charcoal particle
; East Asian monsoon
; Fire history
; Local effect
; Orbital forcing
; Spring insolation
Scopus关键词: Atmospheric thermodynamics
; Charcoal
; Fires
; Incident solar radiation
; Lakes
; Sediments
; Solar radiation
; Vegetation
; Aquatic environments
; Concentration analysis
; East Asian monsoon
; Fire history
; Global climate changes
; Local effects
; Marine isotope stages
; Orbital forcing
; Climate change
; anthropogenic effect
; aquatic environment
; charcoal
; climate change
; climate conditions
; fire history
; global climate
; grassland
; inflow
; lacustrine deposit
; marine isotope stage
; monsoon
; orbital forcing
; sedimentation rate
; spring (season)
; United Nations Framework Convention on Climate Change
; vegetation type
; Biwa Lake
; Far East
; Honshu
; Japan
; Japan
; Kinki
; Shiga
英文摘要: Records of sedimentary charcoal provide fire histories for assessing the relationship between fires and climate conditions, vegetation, human impact, and other factors. We analyzed charcoal particles in sediments from Lake Biwa in central Japan, dating back to 150,000 years ago. The sediments are well dated, homogenous, and had a constant sedimentation rate, making them ideal for assessing the long-term fire history through charcoal concentration analysis. Low charcoal concentrations in the glacial periods of Marine Isotope Stage (MIS) 2 and 6 indicate that few fires occurred in the periods under the cold climatic conditions. Variations in the microcharcoal concentration between 40,000 and 130,000 years ago, with a periodicity of 21,000–23,000 years, correspond to variations in the spring insolation in central Japan, vegetation type, and global climate, suggesting that the long-term fire activity in central Japan was determined mainly by spring insolation and vegetation type under the influence of global climate change. This finding suggests that insolation changes induced by precession cycles could influence a long-term phenomenon in an area as a direct local effect. Between 16,000 and 3000 years ago, sediments were characterized by an extraordinarily high concentration of large charcoal particles (>50 μm) and the predominance of elongated charcoal particles, suggesting that grassland fires (presumably anthropogenic) occurred frequently in the lakeside area. The frequent fire occurrence presumably contributed to the inflow of a large amount of organic materials, resulting in changes in the aquatic environment of Lake Biwa and/or its adjacent area. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112339
Appears in Collections: 气候减缓与适应
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作者单位: Department of Geosciences, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan; Institute for Geothermal Science, Graduate School of Science, Kyoto University, Noguchibaru, Beppu, Ohita 874-0903, Japan
Recommended Citation:
Inoue J.,Okuyama C.,Takemura K.. Long-term fire activity under the East Asian monsoon responding to spring insolation, vegetation type, global climate, and human impact inferred from charcoal records in Lake Biwa sediments in central Japan[J]. Quaternary Science Reviews,2018-01-01,179