Key message

Long Bosnian pine chronologies from different mountains are shaped by different climatic parameters and can help identify past drought events and reconstruct landscape histories.

Abstract

We developed a 735-year-long Pinus heldreichii chronology from the southern distribution limit of the species, expanding the available database of long Bosnian pine chronologies. Tree-ring growth was mainly positively correlated with growing degree days (GDD: r_1950–2018 = 0.476) while higher temperatures during both winter and growing season also enhanced growth (T_WT: r_1950–2018 = 0.361 and T_GS: 0.289, respectively). Annual precipitation, during both calendar and water years, had a negative but weaker impact on annual tree growth. The newly developed chronology correlates well with chronologies developed from the neighboring mountains. The years with ring width index (RWI) lower than the average were found to correspond to cool years with dry summers. Still, the newly developed chronology was able to capture severe drought events, such as those in 1660, 1687, and 1725. Several old living trees had internal scars presumably caused by fires. Therefore, old mature trees could be used for fire history reconstruction in addition to climate reconstruction. Although the presence of lightning scars indicates an important natural agent of fire ignition, human activities associated with animal grazing could also be an underlying reason for fires in the region.

中文翻译：

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使用波斯尼亚松树的年轮探索 Pindus 山脉（希腊）的 Mavrovouni 森林的过去

关键信息

来自不同山脉的长波斯尼亚松树年代学受不同气候参数的影响，可以帮助识别过去的干旱事件并重建景观历史。

抽象的

我们制定了735年之久的松heldreichii从物种的分布南部极限年表，扩大长波斯尼亚松年表可用的数据库。年轮生长主要与生长度日（GDD：r _1950-2018  = 0.476）呈正相关，而冬季和生长季节的高温也促进了生长（T _WT：r _1950-2018  = 0.361 和T _GS：分别为 0.289）。历年和水年的年降水量对树木年生长有负面但较弱的影响。新开发的年表与从邻近山脉开发的年表相关联。发现环宽指数（RWI）低于平均值的年份对应于夏季干燥的凉爽年份。尽管如此，新开发的年表仍然能够捕捉到严重的干旱事件，例如 1660 年、1687 年和 1725 年的那些事件。一些古老的活树有可能是由火灾引起的内部伤痕。因此，除了气候重建外，还可以利用老树进行火灾历史重建。虽然闪电疤痕的存在表明着火的重要自然因素，