[Table 6]
The bivariate LISA maps between the EHI and UI displayed a clear similarity in the spatial clustering pattern (Fig 9). The HH (high EHI and high UI) types and LH (low EHI and high UI) types behaved geographically adjacent, mainly clustered in the BTH, YRD, and PRD regions, where the central region was predominantly HH types, while the edges were LH types. The LL (low EHI and low UI) types were distributed primarily in northwest China, such as Xinjiang, western Inner Mongolia, northwestern Gansu Province and the Qinghai–Tibet Plateau. In addition, the HL types were mainly concentrated in the southwest region, such as eastern Tibet, northwestern Yunnan, Sichuan Province and Chongqing City.