Northeastern Mandarin (98 million), spoken in northeast China except the Liaodong Peninsula. This dialect is closely related to Standard Chinese, with little variation in lexicon and very few tonal differences. Beijing Mandarin (27 million), spoken in Beijing and environs such as Chengde and northern Hebei, as well as some areas of recent large-scale immigration, such as northern Xinjiang. The Beijing dialect forms the basis of Standard Chinese. This classification is controversial, as a number of researchers view Beijing and Northeastern Mandarin as a single dialect group. Jilu Mandarin (89 million), spoken in Hebei ("Ji") and Shandong ("Lu") provinces except the Shandong Peninsula, as well as in few counties of Heilongjiang, due to migration. Includes Tianjin dialect. Tones and vocabulary are markedly different. In general, there is substantial intelligibility with Beijing Mandarin. Jiaoliao Mandarin (35 million), spoken in Shandong (Jiaodong) and Liaodong Peninsulas, as well as in few counties of Heilongjiang, due to migration. Very noticeable tonal changes, different in "flavour" from Ji–Lu Mandarin, but with more variance. There is moderate intelligibility with Beijing. Central Plains Mandarin (186 million), spoken in Henan province, the central parts of Shaanxi in the Yellow River valley, eastern Gansu, as well as southern Xinjiang, due to recent migration. There are significant phonological differences, with partial intelligibility with Beijing. The Dungan language spoken in Kazakhstan and Kyrgyzstan belongs to this group. Dungan speakers such as the poet Iasyr Shivaza have reported being understood by speakers of the Beijing dialect, but not vice versa. Lanyin Mandarin (17 million), spoken in central and western Gansu province (with capital Lanzhou) and Ningxia autonomous region (with capital Yinchuan), as well as northern Xinjiang. Lower Yangtze Mandarin (or Jiang–Huai, 86 million), spoken in the parts of Jiangsu and Anhui on the north bank of the Yangtze, as well as some areas on the south bank, such as Nanjing in Jiangsu, Jiujiang in Jiangxi, etc. There are significant phonological and lexical changes to varying degrees, and intelligibility with Beijing is limited. Lower Yangtze Mandarin has been significantly influenced by Wu Chinese. Southwestern Mandarin (260 million), spoken in the provinces of Hubei, Sichuan, Guizhou, Yunnan, and the Mandarin-speaking areas of Hunan, Guangxi and southern Shaanxi. There are sharp phonological, lexical, and tonal changes, and intelligibility with Beijing is limited to varying degrees. The Atlas also includes several unclassified Mandarin dialects spoken in scattered pockets across southeastern China, such as Nanping in Fujian and Dongfang on Hainan. Another Mandarin variety of uncertain classification is apparently Gyami, recorded in the 19th century in the Tibetan foothills, who the Chinese apparently did not recognize as Chinese. Some northwestern Mandarin varieties in the Qinghai–Gansu sprachbund have undergone drastic changes in phonology, lexicon and grammar.
Northeastern Mandarin (98 million), spoken in northeast China except the Liaodong Peninsula. This dialect is closely related to Standard Chinese, with little variation in lexicon and very few tonal differences. Beijing Mandarin (27 million), spoken in Beijing and environs such as Chengde and northern Hebei, as well as some areas of recent large-scale immigration, such as northern Xinjiang. The Beijing dialect forms the basis of Standard Chinese. This classification is controversial, as a number of researchers view Beijing and Northeastern Mandarin as a single dialect group. Jilu Mandarin (89 million), spoken in Hebei ("Ji") and Shandong ("Lu") provinces except the Shandong Peninsula, as well as in few counties of Heilongjiang, due to migration. Includes Tianjin dialect. Tones and vocabulary are markedly different. In general, there is substantial intelligibility wit,h Beijing Mandarin. Jiaoliao Mandarin (35 million), spoken in Shandong (Jiaodong) and Liaodong Peninsulas, as well as in few counties of Heilongjiang, due to migration. Very noticeable tonal changes, different in "flavour" from Ji–Lu Mandarin, but with more variance. There is moderate intelligibility with Beijing. Central Plains Mandarin (186 million), spoken in Henan province, the central parts of Shaanxi in the Yellow River valley, eastern Gansu, as well as southern Xinjiang, due to recent migration. There are significant phonological differences, with partial intelligibility with Beijing. The Dungan language spoken in Kazakhstan and Kyrgyzstan belongs to this group. Dungan speakers such as the poet Iasyr Shivaza have reported being understood by speakers of the Beijing dialect, but not vice versa. Lanyin Mandarin (17 million), spoken in central and western Gansu province (with capital Lanzhou) and Ningxia autonomous region (with capital Yinchuan) as well as northern Xinjiang. Lower Yangtze Mandarin (or Jiang–Huai, 86 million), spoken in the parts of Jiangsu and Anhui on the north bank of the Yangtze, as well as some areas on the south bank, such as Nanjing in Jiangsu, Jiujiang in Jiangxi, etc. There are significant phonological and lexical changes to varying degrees, and intelligibility with Beijing is limited. Lower Yangtze Mandarin has been significantly influenced by Wu Chinese. Southwestern Mandarin (260 million), spoken in the provinces of Hubei, Sichuan, Guizhou, Yunnan, and the Mandarin-speaking areas of Hunan, Guangxi and southern Shaanxi. There are sharp phonological, lexical, and tonal changes, and intelligibility with Beijing is limited to varying degrees. The Atlas also includes several unclassified Mandarin dialects spoken in scattered pockets across southeastern China such as Nanping in Fujian and Dongfang on Hainan. Another Mandarin variety of uncertain classification is apparently Gyami, recorded in the 19th century in the Tibetan foothills, who the Chinese apparently did not recognize as Chinese. Some northwestern Mandarin varieties in the Qinghai–Gansu sprachbund have undergone drastic changes in phonology, lexicon and grammar.