Multi-species approach strengthens the reliability of dendroclimatic reconstructions in monsoonal Northeast China

Liangjun Zhu, Shuguang Liu, Haifeng Zhu, David J. Cooper, Danyang Yuan, Yu Zhu, Zongshan Li, Yuandong Zhang, Hanxue Liang, Xu Zhang, Wenqi Song and Xiaochun Wang ()
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Liangjun Zhu: Central South University of Forestry and Technology
Shuguang Liu: Central South University of Forestry and Technology
Haifeng Zhu: Chinese Academy of Sciences
David J. Cooper: Colorado State University
Danyang Yuan: Northeast Forestry University
Yu Zhu: Central South University of Forestry and Technology
Zongshan Li: Chinese Academy of Sciences
Yuandong Zhang: Chinese Academy of Forestry
Hanxue Liang: Shanxi University
Xu Zhang: Northwest A&F University
Wenqi Song: Northeast Forestry University
Xiaochun Wang: Northeast Forestry University

Climatic Change, 2022, vol. 171, issue 1, No 7, 22 pages

Abstract: Abstract The unstable sensitivity of growth-climate relationships greatly restricts tree-ring-based paleoclimate reconstructions, especially in areas with frequent “divergence” problems, such as the monsoonal zone of Northeast China. Here, we test the proposition that the tree species mixing method can improve the stability and reliability of reconstruction models in monsoonal areas, taking the tree-ring-based growing-season minimum temperature reconstruction for the northern Changbai Mountains in Northeast China as an example. Compared with previous temperature reconstruction models, ours is more stable and reliable and explains up to 70.4% of the variance. Our reconstruction is also highly consistent with historical records and tree-ring-based temperature reconstructions from the nearby Laobai and Zhangguangcai Mountains and across the Northern Hemisphere. Our reconstruction uses two different tree species and is more accurate than temperature reconstructions developed from a single species. Six significant warm and four cold periods are identified over the past 247 years (AD 1769–2015). The reconstruction indicates rapid warming since the 1980s, which is consistent with other instrumental and reconstructed records. The Atlantic Multidecadal Oscillation and volcano eruptions play a crucial role in driving the growing-season minimum temperature in the northern Changbai Mountains.

Keywords: Temperature reconstruction; Multi-species approach; Divergence problem; Tree rings; Atlantic Multidecadal Oscillation; Changbai Mountains (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s10584-022-03328-9

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