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首页> 外文会议>Conference on Remotely Sensed Data and Information; 20070525-27; Nanjing(CN) >Discussion of Identifying urbanized area basing on the method of 'three-factor analysis': A case study on Chaoyang District of Beijing
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Discussion of Identifying urbanized area basing on the method of 'three-factor analysis': A case study on Chaoyang District of Beijing

机译：基于“三因素分析”方法识别城市化区域的探讨-以北京市朝阳区为例

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The identification of urban area is a basic study on urban economic, social development and urbanization process. Population density is a widely used indicator for urbanized area analysis in most countries such as the United States and Japan, while some countries such like the UK, employ the land use types as a significant difference to distinguish urban and rural areas. China has taken urban population as a basic statistic of urbanization study, but a universal way of identification urbanized area is still in search. After a brief summarization and compare of various methods about urban area identification both in China and abroad and taking both administrative and academic aspects into consideration, this paper puts forward a new method called "three-factor analysis" which is appropriate for China's land use actuality. Taking village as the basic analysis unit, Three-factor here refers to the density of construction, the ownership of land and the performance of infrastructure. Then we design three indicators to quantify the factors above. They are proportion of construction land, proportion of state-owned construction land and the performance of infrastructure. Some kinds of construction land are defined as Basic Construction Land (BCL) and the calculation of two indicators is based on it. All the three indicators will be calculated in the village unit and the urbanized area will be determined according to the calculated result of these indicators. The standards of the indicators according to which a unit will be determined as urban or rural area are formed by three steps . First, a determinate urbanized area is units that are defined as blocks by the local administration. The rest units are called the pending area that is waiting to be identified. Second, calculate the indicator value of the determinate urbanized area and sort them in a ascending sequence. Third, to avoid influence of possible abnormal unit, we choose the value of 5% position in the sequence from the beginning as a standard. The paper then practises the method in Chaoyang district in the east of Beijing which is a quickly developing area for decades, using GIS tools to calculate and perform the urbanized area that is identified in this "three-factor analysis" way. In the end a brief description of the ongoing land use condition and urban construction land proportion in this urbanized area.
机译：市区识别是对城市经济，社会发展和城市化进程的基础研究。人口密度是美国和日本等大多数国家/地区用于城市化区域分析的广泛使用的指标，而英国等一些国家/地区则将土地利用类型作为区分城市和农村地区的重要差异。中国已经将城市人口作为城市化研究的基本统计数据，但是仍在寻找一种普遍的方法来识别城市化区域。在对国内外各种城市识别方法进行简要总结和比较后，结合行政和学术两个方面，提出了一种适合我国土地利用现状的“三因素分析”方法。 。以村庄为基本分析单位，这里的三要素是指建筑密度，土地所有权和基础设施性能。然后，我们设计了三个指标来量化上述因素。它们是建筑用地的比例，国有建筑用地的比例和基础设施的性能。某些建筑用地被定义为基本建筑用地（BCL），并以此为基础计算两个指标。所有这三个指标将在乡村单位中计算，城市化区域将根据这些指标的计算结果确定。通过将指标确定为城市或农村地区所依据的指标的标准分为三个步骤。首先，确定的城市化区域是由地方政府定义为街区的单位。其余单元称为等待识别的待处理区域。其次，计算确定的城市化区域的指标值，并按升序对它们进行排序。第三，为了避免可能的异常单位的影响，我们从一开始就选择序列中5％位置的值作为标准。然后，本文使用GIS工具计算并执行以“三因素分析”方法确定的城市化区域，在北京东部朝阳区（这是一个发展迅速的地区）进行了数十年的实践。最后简要介绍了该城市化地区的土地利用现状和城市建设用地比例。

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