Mots-clés
Action anthropique Agriculture Amérique du Nord Bassin-versant California Canada Colonisation Erosion des sols Etats-Unis Européens Géoarchéologie Pratique culturale Préhistoire Relation société-environnement Sédimentation Utilisation du sol Agricultural practice Agriculture California Canada Colonization Europeans Geoarchaeology Human impact Land use North America Prehistory Sedimentation Society-environment relationship Soil erosion United States of America Watershed Acción antrópica Agricultura América del Norte Aprovechamiento del suelo California Canada Colonización Cuenca hidrográfica Erosión de los suelos Estados Unidos Europeos Geoarqueología Prehistoria Práctica de cultivo Relación sociedad-medio ambiente SedimentaciónContrasting geomorphic impacts of pre- and post-Columbian land-use changes in Anglo America
Physical geography of medium-sized rivers, focusing on the Southeastern and South-Central United States. Part I
Auteur(s) et Affiliation(s)
JAMES, L.A.
Dep. of Geography, Univ. of South Carolina, Columbia, Etats-Unis
MOSSA, J.
Dep. of Geography, Univ. of Florida, Gainesville, Etats-Unis
HEITMULLER, F.T.
Dep. of Geography and Geology, Univ. of Southern Mississippi, Hattiesburg, Etats-Unis
Description :
This review paper evaluates assumptions of pristine landscapes and European disruption from a geomorphic perspective, i.e., with regard to fluvial erosion and sedimentation rates. Geoarcheologic and sedimentologic evidence indicates that the potential for geomorphic change with land-use practices utilized by European settlers was potentially very effective in producing erosion and sedimentation in Anglo America (United States and Canada). A general lack of evidence of rapid sedimentation prior to the time of European contact implies that pre-Columbian agriculture was not highly disruptive geomorphically. Examples from northern California and the southeastern Piedmont support this interpretation by documenting geomorphically stable conditions followed by episodic fluvial sedimentation after colonization.
Type de document :
Congrès
Source :
Meeting of the Southeastern Division of the Association of American Geographers (SEDAAG), Birmingham, Etats-Unis, 2010-11, Physical geography, issn : 0272-3646, 2011, vol. 32, n°. 5, p. 399-422, nombre de pages : 24, Références bibliographiques : 6 p.
Date :
2011
Editeur :
Pays édition : Royaume-Uni, Abingdon, Taylor and Francis
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)