Climate and Environmental Change

Impact of climate change on the surface water of Kaidu River Basin

  • 1. Institute of Desert Meteorology, CMA, Urumqi 830002, China;

    2. Collage of Resources and Environment, CAU, Beijing 100094, China

Received date: 2004-10-09

  Revised date: 2004-11-27

  Online published: 2005-03-25

Supported by

China Desert Meteorological Science Research Fund, No.SQJ2004014; The Special Fund for Commonweal Project of the Ministry of Science and Technology: Research on the Monitoring and Prediction of Snow Storm Disasters in Northern China Rangelands


To reveal the changing trend and annual distribution of the surface water hydrology and the local climate in the Bayanbuluk alpine-cold wetlands in the past 50 years, we used temperature, precipitation, different rank precipitation days, evaporation, water vapor pressure, relative humidity, dust storm days and snow depth to analyze their temporal variations. We conclude that there were no distinct changes in annual mean temperature, and no obvious changes in the maximum or minimum temperatures. Precipitation in warm season was the main water source in the wetlands of the study area and accounted for 92.0% of the annual total. Precipitation dropped to the lowest in the mid-1980s in the past 50 years and then increased gradually. The runoff of the Kaidu River has increased since 1987 which has a good linear response to the annual precipitation and mean temperature in Bayanbuluk alpine-cold wetland. Climate change also affected ecosystems in this area due to its direct relations to the surface water environment.

Cite this article

YANG Qing, CUI Caixia, . Impact of climate change on the surface water of Kaidu River Basin[J]. Journal of Geographical Sciences, 2005 , 15(1) : 20 -28 . DOI: 10.1360/gs050103


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