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(Article of periodic en Anglais - 2009)

Document title

Sediment accumulation of Dianchi Lake determined by Cs 137 dating

Authors(s) and Affiliation(s)

ZHANG Y. (1 2) ; GAO X. (1) ; ZHONG Z. (1) ; CHEN J. (2) ; PENG B. (1) ;
(1) School of Geographic and Oceanic Sciences, Univ., Nanjing, CHINE
(2) State Key Lab. of Soil Sustainable Agriculture, Inst. of Soil Sciences, CAS, Nanjing, CHINE

Abstract

To identify the internal pollution load of Dianchi Lake it is necessary to evaluate its sediment accumulation. Sedimentation rates of Dianchi Lake are determined by Cs 137 dating. However, Cs 137 vertical distribution in sediment cores of Dianchi Lake has special characteristics because Dianchi Lake is located on the southeast of the Qinghai-Tibet Plateau. Meanwhile Dianchi Lake is divided into 7 sections based on the water depth, basin topography, hydrological features and supplies of silt and the lakebed area of each section is calculated. It is necessary to evaluate the gross sediment accumulation of the lake in order to identify evolutionary stages of the lake and load of its internal pollution sources. Therefore, this study evaluates gross sediment accumulation of Dianchi Lake by using the Cs 137 dating method and the technique of Geographical Information Systems (GIS)

Source

Article of periodic

published at : Journal of geographical sciences. Acta geographica sinica / ISSN 1009-637X

Editor : CHINE

Millesime : 2009, vol. 19, no2 [pp. 225-238]

Bibliographic references : 1,5 p.

Collation : 4 fig., 4 tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1007/s11442-009-0225-7

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2009
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