建塘藏语齿音腭化现象及其历史演变

Palatalisation of Denti-alveolar Obstruents in rGyalthang Tibetan and Its Sound Change Process

云南省迪庆州香格里拉市的一些建塘藏语土语中,藏文基字ts、tsh、dz、s、z等齿—龈类声母呈现与腭前阻音的对应关系,本文称其为“腭化现象”。首先,通过对多地土语的描写,确定该类现象的分布范围。其次,探讨其历史演变规律并解释演变过程。最后,从地理语言学的角度探讨其音变,指出音变渐进分布与所谓的ABA分布一致。结论认为,该腭化现象于建塘中心地区发生并扩散到周边土语。

This article discusses prepalatalisation of original denti-alveolar sounds represented by Literary Tibetan main initials ts,tsh,dz,s,and z,attested in dialects of the rGyalthang group of Khams Tibetan spoken in Shangri-La Municipality,Diqing Prefecture,Yunnan Province.Firstly,it provides data of prepalatalised initials from various regiolects of the rGyalthang group,then discusses the distribution of this phenomenon within the given dialect group.Secondly,it discusses the sound change process by examining the rules of sound change.Lastly,it concludes that the given sound development matches an ABA-distribution in geolinguistics,and thus the sound change dealt with by the article has once occurred at the central area of the rGyalthang area and then expanded to surrounding areas.