以武汉市中心城区为研究范围,综合运用核密度估计法、Ripley's L函数、标准差椭圆、Voronoi多边形和空间句法,系统分析武汉市24小时自助图书馆设立的空间效应,包括整体空间效应、服务范围及服务人口效应、可达性及穿行性效应。结果表明,24小时自助图书馆的设立:1使图书馆由单一集聚核心向多集聚核心转变,使图书馆空间集聚程度加强,整体呈现出"大分散,小集聚"的空间分布特征,空间分布方向向"E-W"方向顺时针旋转;2使图书馆的服务范围缩小,服务人口压力减小,但其长尾效应有待进一步发挥;3使图书馆的可达性略有提高,但使其穿行性显著增强,正在从根本上将读者获取图书资源的方式由"读者围着资源移动"转变为"让资源围着读者移动"。

As an important component of the basic public cultural service facilities (CSF), the construction of libraries is to facilitate people to read easily and conveniently. 24-hour self-service library (SSL) is a new type of libraries which can not only extend service time, but also expand service scope. While many researchers have studied the spatial distribution of CSF from the comprehensive perspective, there are few studies focusing on the spatial distribution of libraries. In addition, previous studies are rarely based on urban spatial ontology and peoples' movement to study the spatial pattern of urban public CSF. Therefore, this paper, comprehensively applying Kernel density estimation, Ripley's L function, Standard deviation ellipse, Voronoi diagram and Space syntax, studied the spatial effects of the construction of 24-hour SSL in central Wuhan, including overall effect, served area effect and population effect, accessibility effect and through-movement effect. The results show that:1) the construction of 24-hour SSL has changed the spatial pattern of the libraries in central Wuhan from a single-core agglomeration to multiple-core one, showing an spatial pattern of scattering over the whole area while centralizing in sub-areas, and rotated the distribution direction of the libraries from NE-SW to E-W; 2) the construction of 24-hour SSL has decreased the average served area and population, which has in some degree equalized library service, however, there is still room for the improvement of the long tail effect of the 24-hour SSL; 3)the construction of 24-hour SSL has slightly improved the accessibility of the libraries, while significantly enhanced their through-movement, making them closer to and more convenient for more readers. Finally, several suggestions were proposed for the construction and development of 24 hours SSL in the future.