interior extent
1.The incision rates of Zagunao River、 Dadu River and Xianshui River were 0.37m/ka, 0.38m/ka and 0.39m/ka respectively, from the plateau margin to the interior, the incision rate has a slight increasing trend , to some extent, we can say that, from the margin to the interior , the uplift intensionof the plateau has a slight increasing trend.

