Spatial and temporal variability of water discharge in the Yellow River Basin over the past 60 years

Auteur(s) et Affiliation(s)

LIU, F.

State Key Lab. of Estuarine and Coastal Research, East China Normal Univ., Shangai, Chine

CHEN, S.

State Key Lab. of Estuarine and Coastal Research, East China Normal Univ., Shangai, Chine

DONG, P.

Division of Civil Engineering, School of Engineeering, Physics and Mathematics, College of Art Science and Engineering, Univ., Dundee, Royaume-Uni

PENG, J.

State Key Lab. of Estuarine and Coastal Research, East China Normal Univ., Shangai, Chine

Description :
Water discharge data of the Yellow River over the past 60 years was analyzed using the continuous wavelet transform (CWT) and Mann-Kendall (MK) test methods to identify spatial and temporal variation patterns. Potential connections between water discharge in the Yellow River Basin and El Niño/Southern Oscillation (ENSO) were also examined by the cross wavelet and wavelet coherence methods. The changes in water discharge were found to be influenced by both climate changes and human activities. Before 1970 the change in water discharge was positively related to precipitation variations in the river basin, but after 1970 the decrease in water discharge has been largely caused by various human activities including constructions of reservoirs, water abstraction and water-soil conservation with water abstraction being the main cause.

Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2012, vol. 22, n°. 6, p. 1013-1033, nombre de pages : 21, Références bibliographiques : 58 ref.

Date :
2012

Editeur :
Pays édition : Chine

Langue :
Anglais