Abstract Increases in the annual minimum temperature (Tmin) has been more obvious than the increase in the annual mean temperature in the southeastern Tibetan Plateau (TP) over the past few decades; however, annual Tmin variability over the long-term in the southeastern TP has received scant attention. Here, we present a 413-year long tree-ring width chronology (TRW), which is composed of 22 site chronologies at high altitudes at the Hengduan Mountains on the southeastern TP. Climate–tree growth relationship analysis revealed that annual Tmin was the climatic factor that influenced radial tree growth in the area the most (R = 0.74, P

中文翻译：

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基于树木年轮的青藏高原东南部最低气温重建

摘要 近几十年来，青藏高原东南部（TP）年最低气温（Tmin）的升高比年平均气温的升高更为明显；然而，青藏高原东南部长期的年度 Tmin 变化很少受到关注。在这里，我们提出了一个长达 413 年的树轮宽度年表（TRW），它由青藏高原东南部横断山脉高海拔的 22 个站点年表组成。气候-树木生长关系分析表明，年 Tmin 是对该地区辐射树生长影响最大的气候因子（R = 0.74，P