Impact of forest fire on radial growth of tree rings and their element concentrations of Pinus sylvestris and Larix gmelinii in northern China

Frontiers in Forests and Global Change

Forests and Global Change

Wenxia Zheng¹  Mao Wei¹  Xinbin Guo¹  Yuanfan Ma¹  Futao Guo¹  Mengxia Liu²  Mulualem Tigabu³ 

[1]College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, China

[2]College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, China

[3]Department of Forest Sciences, University of Helsinki, Helsinki, Finland

[4]Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, Lomma, Sweden

关键词: conifer;    fire history;    forest fire;    ring width;    tree ring;    wood cores;   

DOI  :  10.3389/ffgc.2023.1136039

 received in 2023-01-02, accepted in 2023-02-24,  发布年份 2023

来源: Frontiers

【 摘 要 】

AimsThrough analyzing the responses of the radial growth and element concentrations (B, Mg, Al, K, Ca, Mn, Fe, Zn, Na, P, Ni, and Cu) of tree rings of two dominant tree species to forest fires, we aimed to investigate the relationship between tree rings and the fires.MethodsWe sampled wood cores of Pinus sylvestris and Larix gmelinii in the northern forest region of China, where forest fires happened in 1990 and 2008. The ring-width growth of P. sylvestris and L. gmelinii from 1986 to 1995 and 2004 to 2013 in two sites of Tahe County were measured. Element concentrations in tree rings were determined using inductively coupled plasma mass spectrometry (ICP-MS).ResultsOur results showed that tree-ring radial growth was largely reduced after the fire, together with the increase in concentrations of B, Al, Mn, and Fe but the decrease in some samples in K. Strong correlations were observed between tree-ring growth and concentrations of Mg and Mn of P. sylvestris and Znof L. gmelinii.DiscussionThe results provide evidence that variations in tree-ring growth and element concentrations, particularly concentrations of B, Al, Mn, and Fe, are potentially useful to monitor forest fires, which add new insights into the study of forest fire history.

【 授权许可】

Unknown   
Copyright © 2023 Wei, Guo, Ma, Tigabu, Zheng, Liu and Guo.