摘要
在分析黄土高原地貌与沉积特征的基础上,确定了黄土层下6种不同类型的基底地形,其上黄土层厚度与黄土地貌的空间差异均与基底地形的类型有关.根据黄土高原的地貌结构与成因,结合晋陕峡谷区新生代晚期地壳平均抬升速度的讨论,论证了黄土高原在成因类型上完全不同于剥蚀高原、构造高原、熔岩高原等各种高原类型,它是一种独特类型的叠加高原.正因为其类型的独特性,黄土高原在周缘特征和区域自然环境特征上,均有别于其他任何类型的高原,也使它成为水土流失量和速度最大的高原.
Based on geomorphological and sedimentological analysis of the Loess Plateau in North China, six types of the underlined landforms beneath loess layers are recognized. It is found that the spatial differences of loess thickness and loess landforms are closely related with the underlined landforms. According to the geomorphological structure and the origin of the Loess Plateau with reference to the average uplifting velocity of the gorge district between Shanxi and Shaanxi, it is demonstrated that the Loess Plateau is a unique type of accumulated plateau differing from the familiar plateau types, such as, denudated plateau, tectonic plateau and lava plateau etc.. Its unique type makes it differ from the other types of plateau in characters of margins and physical environments and become the plateau of maximum soil erosion in both amount and speed.
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第4期431-436,共6页
Journal of Beijing Normal University(Natural Science)
基金
国家自然科学基金资助项目(40010003)
关键词
黄土高原
黄河
高原类型
水土流失
Loess Plateau
Yellow River
plateau types
soil erosion
