SiteIntro:澎湖地名之旅Part15石井．石泉
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From PHSea
馬公市石泉里，明、清時代叫「石井社」，因為在石泉里西南方角落，有個自然破裂的石孔，只有一台多尺深，卻能不斷地湧出泉水，水質極好因而得名。
到了清朝光緒十八年（公元一八九二年）才改為「石泉社」，屬「嵵裡澳」管轄，目據時期仍叫「石泉社」，光復初期，石泉、前寮、菜園三個村落合為一個里，稱為「三合里」，民國四十年開始實施地方自治，這三個里才分開各自獨立成為三個里。
那個「石井」，至今仍然保存完好，位在村路中央，但政府及民間都樂於看到古井的存在；民國七十年，已故馬公市長王乾同，還特地加以整修，用石塊及混凝土塑建護井盤及護井牆，雖然看起來像個新開鑿的淺水井，不像古蹟，也曾被部分人士認為不知保存古井原貌，是患了「古蹟健忘症」，但是，唯有以現代土木材料及技術給予鞏固，方能長久保存，讓後代的人了解石泉里古代地名叫做「石井社」就是因為這個「石井」而取的地名。
其實，「石井」與「石泉」原意差不多，沒有井那來的泉？石泉里由於位在馬公本島中央，明、清兩個朝代都不曾部署軍防，因為，古代的軍隊是以冷兵器為主要武力，軍隊的防衛據點，都部署在澎湖島群四周，像石泉里這樣的「內陸」，無部署軍防的必要。
所謂冷兵器，是指刀、槍、劍、箭等不需飛熱即可殺敵的武器。
槍彈、砲彈、飛彈等必須藉發熱方能發揮制敵功能的現代武器，才叫熱兵器。
「石井社」，屬「嵵裡澳」管轄「社」，在清朝時代是指最基層的行政區域。
在古代，「嵵裡澳」管轄的範圍相當廣，自井垵到「煙墩仔社」（今前寮里）。
「石井社」自有居民四百多年來，在早期的冷兵器時代，從未被戰亂蹂躪過，因為「社」位置是在澎湖島群「內陸」，海戰不在此地發生，而距離「媽宮城」有一段距離，「媽宮城」有一段距離，「陸戰」也未被波及。
資料來源:澎湖逍遙遊網站
