【摘要】 在埋深20~15 m(山前平原)或10~8 m(中部和滨海平原)以上的三维空间,将地貌形成演化的同一时段,具有同一结构、构造特征的组成物质和形态-成因上有相互联系的地貌类型的组合体视为一个地质-地貌体。基于这一观点,将冲积扇从传统地貌区划中的"山前倾斜平原区"中分离出来,与冲积泛滥平原合并,称作"中部冲积扇-冲积泛滥平原区",更符合国民经济合理布局的需要。更多还原

【Abstract】 In the three-dimensional space above depth of 20~15 m(piedmont alluvial plain),or 10~8 m(the central plain and coastal plain),the combination of landform types which have formed and evolved in the same period,and have composition substance of same configuration and structure,and relate each other in shape and origin,should be regard as a geological-landscape body.And from this point of view,the alluvial fan should be separated from the"tilt piedmont plain area"of the traditional geomorphologic zonalization,and should be combined with the alluvial flood plain,named as the"central alluvial fan-alluvial flood plain areas",which seems to meet the requirement of rational economy allocation all the better.更多还原