Stream-power incision model in non-steady-state mountain ranges: An empirical approach

溪流力量切口模型总是被用于检测范围的 thesteady 状态状况。在引起台湾山的时期 ofPenglai 造山运动期间发生的倾斜的弧大陆碰撞系上带子开发三个进化阶段的风景，也就是上演 pre 不变(在南部的台湾的成长范围) ，不变(在中央台湾的范围) 并且 steady-state 以后(在北台湾的腐烂的范围) 。在探索在基岩隧道(S) 和集水区域(A) 的斜坡之间的关系做的台湾山带的分析开工，在这三个阶段的范围的地志的特征被获得。不变的范围的 S-A 阴谋在一种线性形式，表明基岩隧道的河床高度不随着时间的过去变化(dz/dt = 0 ) 。斜坡并且直线 S-A 拦截与不变的地形学的进化时间有关并且构造高举分别地评价。台湾山带的南部、北的范围的 S-A 阴谋看起来分别地在凸、凹面的形式，暗示在二个范围的基岩隧道的河床高度升起(dz/tit】 0 ) 并且下降(dz/dt 【 0 ) 随着时间的过去分别地。他们的正切拦截罐头仍然思考构造高举率。这研究开发一个实验 stream-powererosion 模型 pre 不变并且 steady-state 以后地形学。

Stream-power incision model has always been applied to detecting the steady-state situation of ranges. Oblique arc-continent collision occurring during the period of Penglai Orogeny caused the Taiwan mountain belt to develop landscape of three evolution stages, namely stages of pre-steady-state （growing ranges in southern Taiwan）, steady-state （ranges in central Taiwan） and post-steady-state （decaying ranges in northern Taiwan）. In the analysis on streams of the Taiwan mountain belt made by exploring the relationship between the slope of bedrock channel （S） and the catchment area （A）, the topographic features of the ranges at these three stages are acquired. The S-A plot of the steady-state ranges is in a linear form, revealing that the riverbed height of bedrock channel does not change over time （dz/dt = 0）. The slope and intercept of the straight line S-A are related to evolution time of steady-state topography and tectonic uplift rate respectively. The S-A plots of the southern and northern ranges of Taiwan mountain belt appear to be in convex and concave forms respectively, implying that the riverbed height of bedrock channel at the two ranges rises （dz/dt 〉 0） and falls （dz/dt 〈 0） over time respectively. Their tangent intercept can still reflect the tectonic uplift rate. This study develops an empirical stream-power erosion model of pre-steady-state and post-steady-state topography.