tailieunhanh - Báo cáo lâm nghiệp: "Growth trends reveal the forest structure during Roman and Medieval times in Western Europe: a comparison between archaeological and actual oak ring series (Quercus robur and Quercus petraea)"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: "Growth trends reveal the forest structure during Roman and Medieval times in Western Europe: a comparison between archaeological and actual oak ring series (Quercus robur and Quercus petraea)" | Ann. For. Sci. 62 2005 797-805 INRA EDP Sciences 2005 DOI forest 2005085 797 Original article Growth trends reveal the forest structure during Roman and Medieval times in Western Europe a comparison between archaeological and actual oak ring series Quercus robur and Quercus petraea Kristof HANECAa Joris Van ACKERa Hans BEECKMANb a Ghent University Department of Forest and Water Management Laboratory of Wood Technology Coupure Links 653 9000 Gent Belgium b Royal Museum for Central Africa Laboratory of Wood Biology and Xylarium Leuvensesteenweg 13 3080 Tervuren Belgium Received 13 December 2004 accepted 23 May 2005 Abstract - At some point in time man has influenced nearly all forests in Western Europe. Most of the original forest cover has been converted to arable land and pastures or has been cut for the supply of firewood and construction timber. In order to secure a sustainable source of firewood the structure of the remaining forests was often altered. Especially coppice of European oak became increasingly popular during the Roman era and the Middle Ages. Ring-width series of oak trees from Roman times and Medieval settlements were recorded. In order to extract more detailed information regarding past forest structure and management those series were compared to growth patterns of contemporary oak. The modern oaks were selected on forests sites in Flanders northern Belgium with well-known structure and management. Some remarkable similarities in growth patterns were observed. These findings yield tentative assumptions regarding past forest structure and management. dendrochronology growth trends Quercus spp. forest structure coppice Résumé - Les tendances de croissance révèlent la structure des forets en Europe Occidentale aux époques Romaines et Médiévales comparaison entre séries d accroissements annuels archéologiques et contemporains Quercus robur et Q. petraea . Au cours de l histoire l homme a influencé quasiment toutes les forêts en Europe. De .