The first edition of the Language Atlas of China places the Hakka dialects spoken in Haifeng and Lufeng[3] into the Xin–Hui cluster (新惠小片; Xīn-Huì xiǎopiàn) of the Yue–Tai subgroup (粤台片; 粵臺片; Yuè-Tái piàn) of Hakka.[4] In the second edition, it is given its own subgroup known as the Hai–Lu subgroup (海陆片; 海陸片; Hǎi-Lù piàn) separate from the Yue–Tai subgroup.[5]
Chang Song-hing and Zhuang Chusheng propose that it should be grouped as the Hai–Lu cluster (海陆小片; 海陸小片; Hǎi-Lù xiǎopiàn) of the Mei–Shao subgroup (梅韶片; Méi-Sháo piàn).[6]
Distribution
In China, the Hailu dialect is spoken in Shanwei, Guangdong, particularly in Haifeng, Lufeng, and Luhe.[1][5] As of 2012, there are around 1.18 million speakers of the dialect in these three areas.[7]
Chang, Song-hing; Zhuang, Chusheng (2008). 廣東方言的地理格局與自然地理及歷史地理的關係 [Geographical Distribution of Guangdong Dialects: Their Linkage with Natural and Historical Geography] (PDF). Journal of Chinese Studies (in Chinese) (48): 407–422.
Huang, Hui-chen (2008). 印尼山口洋客家話研究 [Study of Hakka in Singkawang, Indonesia] (PDF) (Master's thesis). National Central University. Retrieved 11 September 2019.
Teng, Shengyu (2015). "Word Formation in Chinese Dialects: A Case Study of Hailu Hakka". Chinese Lexical Semantics. Lecture Notes in Computer Science. Vol. 9332. pp. 281–293. doi:10.1007/978-3-319-27194-1_29. ISBN978-3-319-27193-4.
Wu, Wei; Zhan, Bohui (2012). B2—1 广东省的汉语方言. 中国语言地图集 [Language Atlas of China] (in Chinese). Vol. 汉语方言卷 (2nd ed.). Beijing: Commercial Press. pp. 160–165. ISBN978-7-100-07054-6.
Xie, Liuwen; Huang, Xuezhen (2012). B1—17 客家话. 中国语言地图集 [Language Atlas of China] (in Chinese). Vol. 汉语方言卷 (2nd ed.). Beijing: Commercial Press. pp. 116–124. ISBN978-7-100-07054-6.
101-102年度台灣客家民眾客語使用狀況(PDF) (in Chinese). Hakka Affairs Council. November 2013. Retrieved 11 September 2019.
客家語拼音方案使用手冊 [Usage Manual for the Hakka Romanization System] (PDF) (in Chinese). Ministry of Education, Republic of China (Taiwan). November 2012. Retrieved 11 September 2019.