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dc.contributor.authorMalik, Ireneusz-
dc.contributor.authorTie, Yongbo-
dc.contributor.authorOwczarek, Piotr-
dc.contributor.authorWistuba, Małgorzata-
dc.contributor.authorPilorz, Wojciech-
dc.contributor.authorWoskowicz-Ślęzak, Beata-
dc.identifier.citationGeochronometria, Vol. 40, iss. 3 (2013), s. 208-216pl_PL
dc.description.abstractLarge debris flows have destroyed the infrastructure and caused the death of people living in the Moxi Basin (Sichuan Province, Southwestern China). Inhabitants of the Moxi Basin live on the flat surfaces of debris-flow fans, which are also attractive for farming. During the monsoon season debris flows are being formed above the fans. Debris flows can destroy the houses of any people liv-ing within the fan surfaces. In order to prevent the adverse effects of flows, people plant alder trees (Alnus nepalensis) at the mouths of debris flow gullies running above debris flow fans. Alders are able to capture the debris transported during flow events. Trees are well adapted to surviving in con-ditions of environmental stress connected with abrupt transport and deposition of sediment from de-bris flows. Numerous wounds, tilting and bending of alder trees caused by debris flows only very rarely cause the death of trees. By dating scars and dating the time of alder tilting (through the analy-sis of annual rings), we have determined the frequency of debris flows occurring at the mouth of the Daozhao valley. In 1980-2012 within the studied debris-flow fan and the Daozhao gully, 2 large de-bris flow events occurred (1996, 2005) and some smaller events were probably recorded every 2-3 years.pl_PL
dc.rightsUznanie autorstwa-Użycie niekomercyjne-Bez utworów zależnych 3.0 Polska*
dc.subjectdebris flowpl_PL
dc.subjecttree wound datingpl_PL
dc.subjecteccentric growth of trees datingpl_PL
dc.subjectSouth-Western Chinapl_PL
dc.titleHuman-planted alder trees as a protection against debris flows (a dendrochronological study from the Moxi Basin, Southwestern China)pl_PL
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