Variability of Water Resource in the Yellow River Basin of Past 50 Years, China
2009 (English)In: Water resources management, ISSN 0920-4741, E-ISSN 1573-1650, Vol. 23, no 6, 1157-1170 p.Article in journal (Refereed) Published
We use Mann-Kendall trend test and Lepage method to study spatial and temporal variations of the streamflow series over the past 50 years based on daily hydrologic data from six gauging stations in the Yellow River basin. Research results indicate that: (1) The streamflow of the Yellow River basin is decreasing and water resource deficit tends to be more serious from the upper to the lower Yellow River basin; (2) Zero-flow days are observed after 1970 and overwhelmingly prevail during 1990-2000. Moreover, zero-flow events are observed mainly during spring and summer; (3) Low flow events are more sensitive to climatic changes and human activities when compared to the high flow events, which is mainly reflected by larger fluctuation of timing of change points. Furthermore, the timing of change point of hydrologic events tends to be earlier from the upper to the lower Yellow River basin, indicating more intensive impacts of human activities on water resource in the lower Yellow River basin. The current research will be greatly helpful for sound and effective water resource management in the Yellow River basin, being characterized by serious water deficit.
Place, publisher, year, edition, pages
2009. Vol. 23, no 6, 1157-1170 p.
Mann-Kendall trend, Lepage test, Water resource, Yellow River basin
Earth and Related Environmental Sciences
IdentifiersURN: urn:nbn:se:uu:diva-120801DOI: 10.1007/s11269-008-9320-2ISI: 000264546700009OAI: oai:DiVA.org:uu-120801DiVA: diva2:304337
Chongyu Xu har adress Department of Geosciences, University of Oslo på artikeln2010-03-172010-03-162010-08-03Bibliographically approved