构造和降水对祁连山北麓冲积扇演化影响的数值模拟研究

李琼, 王姣姣, 潘保田

Numerical Simulation of the Influence of Tectonics and Precipitation on the Evolution of Alluvial Fans at the Northern Foot of Qilian Mountains

Qiong Li, Jiaojiao Wang, Baotian Pan

图3 模拟流域达到均衡后，构造和气候变化对冲积扇比降和流域平均侵蚀速率的影响 （a）、(b)：西沟河，（c）、（d）：大野口河；U+：抬升速率增大100%，U-：抬升速率减小50%；P+：降水量增大100%，P-：降水量减小50%

Fig.3 After achieving steady state, the effects of tectonic and climate change on fan slope and mean drainage erosion rate of Xigou River, Dayekou River, respectively (a) and (b)： Xigou River, (c) and (d)： Dayekou River； U+: 100% increase in uplift rate; U-: 50% decrease in uplift rate; P+: 100% increase in precipitation rate; P-:50% decrease in precipitation rateⅹ