The study of tree-rings is a common task in dendrology. Usually the rings deliver information about the age of the tree, historic climate conditions and forest densities. Many different techniques exist to perform the tree-ring detection, but they commonly are semi-automatic. The main idea of this work is to propose an automatic process for the tree-ring detection and compare it with a manual d...

Introduction Conclusions References Tables Figures

can be found at: The Holocene Additional services and information for http://hol.sagepub.com/cgi/alerts Email Alerts: http://hol.sagepub.com/subscriptions Subscriptions: http://www.sagepub.com/journalsReprints.nav Reprints: http://www.sagepub.com/journalsPermissions.nav Permissions: http://hol.sagepub.com/cgi/content/refs/14/4/502 SAGE Journals Online and HighWire Press platforms): (this arti...

Changes in mean earlywood vessel areas in mature Quercus macrocarpa were analyzed to determine possible sources of bias in paleoflood records derived from anatomical tree -ring signatures. Tree -ring cores were collected at intervals along the vertical axis of four Q. macrocarpa in a flood -prone stand near the Red River in Manitoba. The WinCELL PRO image analysis system was used to measure mea...

500 years of ancient Near Eastern history from the earlier second millennium BCE, including such pivotal figures as Hammurabi of Babylon, Šamši-Adad I (who conquered Aššur) and Zimrilim of Mari, has long floated in calendar time subject to rival chronological schemes up to 150+ years apart. Texts preserved on clay tablets provide much information, including some astronomical references, but des...

Quercus rotundifolia Lam., known as holm oak or evergreen oak, occurs naturally in the western Mediterranean region, mainly part of agroforestry agrosilvopastoral systems Portugal (“montado”) and Spain (“dehesa”), is economically important for acorn production. Less attention has been given to Q. wood, its density variability not known, namely related tree growth. The wood 20 trees was measured...

Recent climatic changes significantly affected forest ecosystems in northern Eurasia. Trees growing Siberia are very sensitive to climate change due strong temperature limitation of their growth. Our study covers high-latitude (northeastern Yakutia, eastern Taimyr, central Evenkia) and high-altitude (Russian Altai) zones Eurasia, where tree-ring parameters (tree-ring width, cell-wall thickness,...