AUTHOR=Wang Xinrui , Wang Zhaopeng , Zhang Dongyou , Yu Shulong , Zhang Tongwen , Luo Taoran , Li Xiangyou , Du Bingyun , Cheng Xiyao TITLE=Response of Pinus sylvestris var. mongholica tree-ring density to climatic factors in Northeast China under climate warming background JOURNAL=Frontiers in Forests and Global Change VOLUME=8 YEAR=2025 URL=https://www.frontiersin.org/journals/forests-and-global-change/articles/10.3389/ffgc.2025.1531983 DOI=10.3389/ffgc.2025.1531983 ISSN=2624-893X