江淮官话韵母开口化音变的蕴含关系

Implication Relations of Phonetic Changes in the Opening of Vowels in Jianghuai Mandarin

江淮官话韵母由合口转为开口呈现出类型学上的蕴含关系:影组见组和知系精组端组和泥组帮组非组。蕴含关系反映了开口化音变的难易程度,影组最难,非组最易。这取决于声母发音动作与合口特征的协调程度,与合口特征越不协调越容易发生开口化音变。江淮官话开口化音变的时间不晚于明代。

Abstract： The change of vowels from closing to opening in Jianghuai Mandarin is reflective of the implication relation typologically, such as Ying group D Jian group and Zhi group D Jing group D Duan group and Ni group D Bang group D Fei group. The implication relation reflects the difficulty in the phonetic change of vowels from closing to opening, with the Ying group being the most difficult and the Fei group the easiest. The change depends on the degree ulation vowels of coordination between vowel articulation and their closing features, for the incongruity between vowel attic- and closing features is prone to cause the vowel change from closing to opening, and the phonetic change of from closing to opening did occur orior to the Minz Dvnastv.