Fir tree-ring reconstruction of March-Julyprecipitation in southern Moravia(Czech Republic), 1376-1996

Climate Research

Josef Kyncl¹  Rudolf Brázdil¹  Pavla Stepánková¹  Tomás Kyncl¹ 

关键词: Fir ring-width chronology;    Precipitation reconstruction;    Extreme tree-rings;    Documentary evidence;    Southern Moravia;   

DOI  :  10.3354/cr020223

来源: Inter-Research Science Publishing

【 摘 要 】

ABSTRACT: A ring-width chronology for fir Abies alba Mill. in southern Moravia (Czech Republic), compiled from historical wood and living trees, was used for the dendroclimatological reconstruction of March-July precipitation for the period1376-1996. Based on a response function model, the precipitation series explains 38% of tree-ring width variability. In the years with thinner tree-rings, drier spring and summer seasons prevailed, whereas years with wider tree-rings indicate wetterconditions. The highest precipitation in the reconstructed series was found in the 1670s, 1710s and 1980s; the lowest in the 1380s, 1700s and, particularly, in the 1970s. Reconstruction after the 1950s is less reliable due to a weaker relationship betweenprecipitation and fir growth. The 18th century was the driest and the 19th century the wettest in the last 600 yr. The comparison of the reconstructed March-July precipitation of southern Moravia with the Brno series (instrumental period) and with thePrague-Klementinum series (compiled from the quantitative interpretation of documentary evidence and instrumental measurements) shows a high degree of agreement, reflecting the similarities between these series over the instrumental period. During the16th, 17th and 18th centuries the2 proxy data sources‹documentaries and tree-rings‹are in satisfactory agreement with respect to those years with extremely thin or wide rings.

【 授权许可】

Unknown