“…人研究 [18,27] 二、 三产业产值占 GDP 的比值)对其进行表征 [6][7]18] ; ③ 旅游资源禀赋(Res), 该指标是对旅游流和旅游 投资产生吸引力的核心要素, 是各地发展旅游产业 的基础和前提, 选取各县市 3A 级以上景区数量, 根 据相关标准中各等级景区对应分值加总求和得到 该要素值 [16,21] [5,9,11] [5,17,21] [12,18,31] [18,27] 。根据 [18,27] , 研 究 发 现 [19,21,23] During the study period, the tourism economies of the 65 county-scale units showed a strong spatial agglomeration. The local spatial associations were mainly high-high and low-low agglomeration.…”