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雅鲁藏布江大峡谷地貌响应时间域的定量计算

, PP. 264-272

Keywords: 基岩河道,地貌响应时间域,DL模型(detachment-limitedmodel)

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Abstract:

基岩河道流域地区的地貌演化定量化研究在构造-气候-表面过程关系的探讨中具有十分重要的意义。定量化的分析主要关注气候、构造等外在因素以及河流内在调节机制对地貌演化的影响。本文总结了关于基岩河道流域地貌分析的定量方法和模型的研究进展,并利用DL模型对雅鲁藏布江中下游河段进行了演算,结果显示该地区在稳定状态下地貌演化时间域在0.065~0.420Ma之间,反映了该地区快速的地貌演化过程。

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