基于城市流强度空间权重矩阵的构建与应用

Construction and Application of Spatial Weight Matrix Based on Urban Flows Intensity

空间权重矩阵是衡量区域空间效应的重要变量,空间权重矩阵构建直接决定了空间定量分析的准确程度。文章通过对各类空间权重矩阵构建方式进行归纳分析,兼顾地区的经济发展规模和要素流动条件提出了基于城市流强度的空间权重矩阵构建方法。通过构建基于城市流强度的空间权重矩阵分析长江中游城市群空间关系,有效揭示了长江中游城市群发展的回流特征。实证表明基于城市流强度的空间权重矩阵能更充分反映地区间联系的紧密程度,是更为可靠的空间关系描述分析手段。

Spatial weight matrix is an important variable to measure regional spatial effect, and the construction of spatial weight matrix directly determines the accuracy of spatial quantitative analysis. By analyzing the construction manners of various spatial weight matrixes and taking into account both regional economic development scale and factor flow conditions, this paper proposes the construction method of spatial weight matrix based on the urban flows intensity. By use of the spatial weight matrix based on the intensity of urban flows, the paper analyzes the spatial relationship of urban agglomeration in the middle reaches of the Yangtze River, and effectively reveals the backwash effect characteristics in the development of this urban agglomeration. The empirical results show that the spatial weight matrix based on the intensity of urban flows reflects the close relationship between regions more adequately, thus a more reliable method to describe and analyze the spatial relationship.