CAJ | 학술논문

利用西安市第六次人口普查常住人口街道（乡、镇）数据，基于西安市建设用地类型，利用ArcGIS10．0软件生成500 m格网人口密度图，绘制常住人口密度等值线，根据等值线值和等值线所围面积计算备择中心人口规模，结合城市主副中心的定义和经济特征设计筛选条件，辅以城市人口密度模型系数，研究识别城市主副中心数量和位置的一般性方法．研究显示，西安市有唯一主中心（钟楼主中心）和5个城市副中心（小寨副中心、西高新副中心、张家堡副中心、土门副中心和纺织城副中心），各主副中心的坐标位置得以识别和标注．本方法用于城市人口密度模型研究中能够修正模型系数偏误，也可应用于城市规划、商业、公共服务选址等领域．
이용서안시제륙차인구보사상주인구가도（향、진）수거，기우서안시건설용지류형，이용ArcGIS10．0연건생성500 m격망인구밀도도，회제상주인구밀도등치선，근거등치선치화등치선소위면적계산비택중심인구규모，결합성시주부중심적정의화경제특정설계사선조건，보이성시인구밀도모형계수，연구식별성시주부중심수량화위치적일반성방법．연구현시，서안시유유일주중심（종루주중심）화5개성시부중심（소채부중심、서고신부중심、장가보부중심、토문부중심화방직성부중심），각주부중심적좌표위치득이식별화표주．본방법용우성시인구밀도모형연구중능구수정모형계수편오，야가응용우성시규화、상업、공공복무선지등영역．
The population density distribution map with 500×500 grids is generated by the Arc-GIS10.0 software based on the map of land use type and the resident population data of the sixth census data of Xi′an city.The resident population density contours is rendered to calculate the population scale of the alternative CBD or sub-CBD by measuring the areas which are enclosed by the contours.According to the definition and the economic characteristics of CBD and sub-CBD, the screening conditions are designed,and assisted with the coefficients of the urban population density models and the j udgments by the authors,a general method to identify the number and location of the CBD and sub-CBD is proposed.Results show that there is only one CBD in Xi′an city (the CBD of Bell Tower),as well as five sub-CBDs (the sub-CBD of Xiaozhai,Xigaoxin, Zhangjiabao,Tumen and Fangzhicheng),and the numbers and positions of CBD and sub-CBDs are identified and labeled.The method can help to correct the bias of the coefficients of urban population density model,and also can be applied in the city designing as well as site selection in the commercial and the public service fields.