Eco-hydrological characteristics of the upstream of Yellow River
River eco-hydrological characteristic is the outward manifestation of river eco-hydrological response system,and river eco-hydrological characteristic variation analysis is the basis of reservoir eco-operation. We systematically took a statistical analysis on the eco-hydrological characteristics on Tangnaihai and Lanzhou section on the upstream by Mann-Kendall method. The results showed that eco-hydrological factors with strongly alteration mainly include annual runoff,intra-annual distribution,the occurring time of the maximum and minimum flow,the large and small floods,flow change rate and so on. The eco-hydrological characteristics with strongly alteration on Tangnahai section are different from those on Lanzhou section where the runoff is disturbed seriously by human activities.
the upstream Yellow Rivereco-hydrological characteristicsMann-Kendallalteration analysis