In this paper,it is introduced into the study of economic geography,hence central city which generated from the apex region of economic delta is entitled "apex city of delta".

The conception of the apex city of delta belongs to the field of economic geography,which is put forward based on the city location and the natural environment evolution of delta.

An Elementary Research on Urban Node with Their Influences on the Bottom Space of the Building;

Aim In order to survey and research the effect power of urban node s shape related to city and city ec- ological system.

According to several factors such as city skyline,city focus,variety of urban form,comfortable pedestrian street and streetscape elements and so on,this paper expounds effective application of environmental aesthetic control in urban design and role in creating characteristic urban landscape.