基于地理标记照片的游客流动网络结构特征及其流动模式 ——以扬子江城市群为例

流动性不仅表征了旅游地域系统要素的内在关系，亦是旅游复杂网络关系变化原始动力的核心表达。该文基于Flickr地理标记照片数据，综合运用社会网络分析、GIS空间分析及马尔科夫转移概率模型等方法，以扬子江城市群为例进行实证，探讨了城市群游客流动的网络结构特征，揭示了游客流动的内在规律，尝试性地构建了城市群内部游客流动的典型模式。结果表明：(1)流动网络整体结构紧密程度较低，不均衡特征明显，“核心-边缘”结构特征突出；(2)网络节点的程度中心性、中间中心性差异显著，核心节点结构优势突显，集聚和辐射能力强；接近中心性差距不大，城市群内部可进入性较高，节点间互为客源地与目的地；(3)单节点轨迹模式占比较小，多节点轨迹模式中“A-A”、“A-B”、“B-A”、“A-C”类2～3节点路径、“A-B-A”类3～4节点路径构成扬子江城市群游客流动的主要模式，空间流动轨迹表现为高级别节点间直线式流动、高级别节点与次级节点间单向链式流动或往返式特征。

Influence of Private Education on the County Education Urbanization：A Case Study of Feidong County,Anhui Province

This article analyzes the development process and characteristics of education urbanization and private education in Feidong County in 2005-2017, and explores the influence of private education on the county education urbanization process. The result shows that: （1)From 2005 to 2017, the urbanization level of compulsory education in Feidong County has been steadily improved, showing the time-series change characteristics of “slow-fast-slow”.(2）Feidong County’s private compulsory education has developed rapidly. The proportion of private compulsory education students increased from 2.2 percent in 2005 to 35.0 percent in 2015, higher than the national average. Private primary schools develop slowly, while private junior middle schools develop rapidly. The proportion of private junior middle school students in Feidong county once reached 74.2%, and more than 90% of private junior middle school students are enrolled in Chengguan Town of Feidong County. （3)Private junior middle schools continue to attract a large number of rural students to study by selecting sites in urban areas, introducing and improving the “Boarding system” and improving the quality of running schools and social reputation, which has significantly promoted the process of education urbanization in Feidong County.