单词	dendrochronology
释义	dendrochronology /ˌdɛndrəʊkrəˈnɒlədʒi / noun [mass noun] The science or technique of dating events, environmental change, and archaeological artefacts by using the characteristic patterns of annual growth rings in timber and tree trunks.At the tower's core is a massively strong timber frame, which dendrochronology has recently dated to between 1207 and 1216 with rebuilding using many of the old timbers in 1668-9.... Radiocarbon suggested construction between AD 900-1020, and dendrochronology dates the felling of three trees to AD 1080-1120. If the Stafford mill proves to be medieval following dendrochronology dating, it will be the first medieval double mill found in Britain made of timber. Derivatives dendrochronological /ˌdɛndrəʊkrɒnəˈlɒdʒɪk(ə)l/ adjective ... Few, however, have linked dendrochronological methods to the archaeological record to document native impacts on pre-European settlement vegetation. A 148-year dendrochronological sequence has been established from measuring tree rings, running from AD 425 to 573. Nonetheless, these stands and the dendrochronological record they represent should be identified and further studied so that the transitions from native American to Colonial European landscapes can be better understood. dendrochronologist noun ... By using tree rings to age all trees within a stand, dendrochronologists are able to identify periods of peak tree establishment and periods of limited or no establishment. Historically, dendrochronologists working in closed-canopy forests have focused on reconstructing disturbance regimes and stand dynamics, assuming the effects of climate were minimal in comparison to those of competition. Because trees put on different kinds of wood in early summer and in late summer, dendrochronologists can count annual rings to figure out how old a tree is.
随便看	Overijssel overinclusion overinclusive overindulge overindulgence over-indulgency overindulgent over-inflate overinflated overinflation over-influence over-inform over-informed over-inhibited over-inhibition overinsurance over-insure overinsured over-intellectual over-intellectualization over-intellectualize over-intellectualized overinvest overinvestment overissue

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。