Impact Analysis of Climate Change on the Upper Reaches of Yellow River Runoff
Due to climate change and human activities in recent years ,the grim situation of insufficient surface water re-sources at the upstream of Yellow River is worsening ,which seriously affects the sustainable development of regional e-conomy in north China .To study the effects of climate change on the runoff ,month by month precipitation ,temperature and evaporation potential data of 14 weather stations at the upstream of Yellow River ,as well as the runoff data of Tang-naihai and Shangquan hydrological stations were adopted to analyze the impact of climate change on the Yellow River runoff using linear correlation method and Mann-Kendall method .The results indicate that the rainfall of the studied area is slightly increasing ,while the temperature ,evaporation are significantly increasing ,but the runoff is significantly re-duced;the timing of the runoff mutations isn’t in good consistency with the meteorological factors .Therefore ,it is con-cluded that the runoff is not only affected by the climate factors such as temperature ,precipitation ,evaporation ,but also by other factors such as soil and vegetation .
climate changethe Yellow River basinmeteorological elementsMann Kendall
NETL
NSTL
万方数据
维普
