A dendroarchaeological tree-ring dataset of Abies alba from historic buildings in the French Pyrenees (BENDYS project ANR-19-CE03-0010)

We carried out an archaeological census in the northern slopes of the Pyrenees which led to the acquisition of 393 tree-ring series from fir (Abies alba Mill.), deciduous oak (deciduous Quercus), beech (Fagus sylvatica L.), pine (Pinus sp.) and poplar (Populus). We successfully cross-dated 57 series from fir trees and 67 short series (less than 50 rings). The other 269 series remain undated. The tree-ring series were extracted from building timbers used in barns located in the immediate vicinity of current old-growth beech-fir forests. The wooden pieces also comes from houses and churches close to the forests, where the timbers are also preserved in the frameworks, ceilings and joineries. The samples were taken by coring and sectioning. Two chronologies for fir (Abies alba Mill.) were dated for two periods: 1446-1655 and 1679-1952 AD. The ring series measurements were performed with a LINTAB measurement table combined with TSAP-Win program for recording measured values. The series were cross-dated with the DendronIV program. Our study provides the first dated tree ring series for fir in the French Pyrenees. This research was funded by the ANR-BENDYS project ANR-19-CE03-0010 led by Vanessa Py-Saragaglia and the GEODE CNRS UMR 5602 laboratory. We would like to thank Sylvie Ladet (INRAE Dynafor UMR 1201, Auzeville-Tolosane, France) and Emilie Lerigoleur for their contribution.

本研究在比利牛斯山脉北坡开展考古普查，共采集得到393份树轮序列（tree-ring series），其树种涵盖欧洲冷杉（Abies alba Mill.）、落叶栎（deciduous Quercus）、欧洲山毛榉（Fagus sylvatica L.）、松属（Pinus sp.）以及杨属（Populus）。本研究成功对57份冷杉树轮序列与67份短序列（年轮数少于50）完成交叉定年，剩余269份序列尚未完成定年。本次采集的树轮序列源自现存成熟山毛榉-冷杉林紧邻区域内谷仓的建筑用材，此类木构件亦取自林区周边的民居与教堂，其用材被妥善保存于建筑构架、天花板及细木作之中。样本通过钻取木芯与切片的方式获取。本研究针对欧洲冷杉（Abies alba Mill.）构建了两条树轮年表，对应的定年时段为公元1446-1655年与1679-1952年。树轮序列的测量采用LINTAB测量台（LINTAB measurement table）结合TSAP-Win软件（TSAP-Win program）完成数据记录，序列的交叉定年则通过DendronIV软件（DendronIV program）完成。本研究为法国比利牛斯山脉地区的冷杉树轮提供了首批完成定年的序列。本研究由Vanessa Py-Saragaglia主持的ANR-BENDYS项目（项目编号ANR-19-CE03-0010）以及法国国家科研中心GEODE实验室（GEODE CNRS UMR 5602 laboratory）资助。谨向法国奥泽维尔-托洛桑INRAE Dynafor UMR 1201的Sylvie Ladet与Emilie Lerigoleur为本研究作出的贡献致以诚挚谢意。