Sediment provenance in the Shudu Lake basin, northwest Yunnan Province, China, as revealed by composite fingerprinting

Auteur(s) et Affiliation(s)

YAO, Y.

East China Mineral Exploration and Development Bureau, Nanjing, Chine

ZHANG, E.

State Key Laboratory of Lacustrine Science and Environment, Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, Chine

KUHN, N.

Dept. of Environmental Sciences, Univ., Basel, Suisse

JONES, R.

Dept. of Geography, Univ., Exeter, Royaume-Uni

LANGDON, P.

School of Geography, Univ., Southampton, Royaume-Uni

SHEN, J.

State Key Laboratory of Lacustrine Science and Environment, Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, Chine

GREENWOOD, P.

Dept. of Environmental Sciences, Univ., Basel, Suisse

Description :
This article examines the sediment provenance in the Shudu Lake basin, northwest Yunnan Province, China, as revealed by composite fingerprinting. Based on this technique, variations in the geochemical signature as¬sociated with lacustrine sediment deposits indicate that almost half of the total catchment sediment yield over an approximate 50-year period originated from channel banks. Conversely, the relative contributions of eroded sediment from both woodland and shrubland have generally remained stable over the period investigated, whereas the contribution of material from pasture has increased over recent decades.

Type de document :
Article de périodique

Source :
Erde, issn : 0013-9998, 2013, vol. 144, n°. 1, p. 17-29, nombre de pages : 13, Références bibliographiques : 2 p.

Date :
2013

Editeur :
Pays édition : Allemagne, Berlin, de Gruyter

Langue :
Anglais