Mots-clés
Bassin-versant ; Bilan sédimentaire ; Changement climatique ; Chine ; Datation C 14 ; Erosion des sols ; Hebei ; Holocène ; Huanghe ; Répartition de la population ; Utilisation agricole du solAgricultural land use ; C 14 dating ; China ; Climatic change ; Hebei ; Holocene ; Huang He ; Population distribution ; Sediment budget ; Soil erosion ; WatershedAprovechamiento agrícola del suelo ; Balance sedimentario ; Cambio climático ; China ; Cuenca hidrográfica ; DataciónCarbono 14 ; Distribución de la población ; Erosión de los suelos ; HolocenoSediment load and storage in the lower Yellow River during the late Holocene
Auteur(s) et Affiliation(s)
SHI, C.
Key Lab. of Water Cycle and Related Land Surface Processes, Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing, Chine
ZHANG, L.
Key Lab. of Water Cycle and Related Land Surface Processes, Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing, Chine
XU, H.
Key Lab. of Water Cycle and Related Land Surface Processes, Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing, Chine
Graduate Univ. of Chinese Academy of Sciences, Beijing, Chine
GUO, L.
Key Lab. of Water Cycle and Related Land Surface Processes, Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing, Chine
Graduate Univ. of Chinese Academy of Sciences, Beijing, Chine
Description :
This study determined sediment storage on the floodplains of the lower Yellow River in 5 historical periods after the year 602 BC mainly based on data of boreholes, radiocarbon dates in the Huang-Huai-Hai Plain and maps of historical changes of the lower Yellow River channel. Furthermore, the mean annual sediment outputs from the upper and middle reaches of the Yellow River were calculated in the 5 periods through investigating the sediment delivery ratio of the lower Yellow River under different conditions of artificial levees. The Loess Plateau is the principal sediment source of the Yellow River. The comparison of historical changes in sediment load of the lower Yellow River with those in the natural conditions and in human activities on the plateau reveals that the changes in sediment yield from the plateau could be attributed mainly to the variations of population, cultivating area, and climate changes on the plateau.
Type de document :
Article de périodique
Source :
Geografiska annaler. Series A. Physical geography, issn : 0435-3676, 2010, vol. 92, n°. 3, p. 297-309, nombre de pages : 13, Références bibliographiques : 33 ref.
Date :
2010
Editeur :
Pays édition : Suede, Stockholm, Svenska sällskapet för antropologi och geografi
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)