Geographical division contained in this paper
| Regions | Provincial units |
|---|---|
| Eastern China | Shandong(SD), Jiangsu(JS), Anhui(AH), Zhejiang(ZJ), Fujian(FJ), Jiangxi(JX), Shanghai(SH) |
| South China | Guangdong(GD), Guangxi(GX), Hainan(HI) |
| Central China | Hubei(HB), Hunan(HN), Henan(HA) |
| North China | Beijing(BJ), Tianjin(TJ), Hebei(HE), Shanxi(SX), Inner Mongolia(IM) |
| Northwest China | Ningxia(NX), Xinjiang(XJ), Qinghai(QH), Shaanxi(SN), Gansu(GS) |
| Southwest China | Sichuan(SC), Yunnan(YN), Guizhou(GZ), Xizang(XZ), Chongqing(CQ) |
| Northeast China | Liaoning(LN), Jilin(JL), Heilongjiang(HL) |
| Regions | Provincial units |
|---|---|
| Eastern China | Shandong(SD), Jiangsu(JS), Anhui(AH), Zhejiang(ZJ), Fujian(FJ), Jiangxi(JX), Shanghai(SH) |
| South China | Guangdong(GD), Guangxi(GX), Hainan(HI) |
| Central China | Hubei(HB), Hunan(HN), Henan(HA) |
| North China | Beijing(BJ), Tianjin(TJ), Hebei(HE), Shanxi(SX), Inner Mongolia(IM) |
| Northwest China | Ningxia(NX), Xinjiang(XJ), Qinghai(QH), Shaanxi(SN), Gansu(GS) |
| Southwest China | Sichuan(SC), Yunnan(YN), Guizhou(GZ), Xizang(XZ), Chongqing(CQ) |
| Northeast China | Liaoning(LN), Jilin(JL), Heilongjiang(HL) |
Note: The abbreviations shown in parentheses will be used in the following figures and tables
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