physiography

The spatial differentiation of sediment granularity is controlled by micro-physiography formed by alluvion and deposit swing and by paleoclimate, and by, as well, human’s irrigation from Yellow River.

沉积物粒度表层空间分异与古河流冲积、河床摆动形成的微貌控制及气候自然要素有关，也受人类引黄灌、抽水灌会因素影响。