Figure 1.
Human disturbance index (HDI).
HDI was modeled by aggregating information on several socioeconomic proxies, including proportion of land converted by human use, human population density, gross domestic product, and road density.
Figure 2.
The conservation value of 1002 hexagon units for achieving the defined conservation targets.
(A) HDI-ignored scenario and (B) HDI-considered scenario.
Figure 3.
The cost-effective portfolios of priority units identified by the HDI-ignored and HDI-considered scenarios, respectively.
Figure 4.
Proportional changes in irreplaceable area between the HDI-ignored and HDI-considered scenarios by province.
Figure 5.
The distribution of priority units on (A) HDI, (B) elevation, and (C) TRI zones.
The numbers 1 to 7 on the horizontal axes represent (A) low to high HDI value classifications, (B) elevation zones of <200, 200–500, 500–1,000, 1,000–1,500, 1,500–2,000, 2,000–4,000, and >4,000 m, and (C) terrain categories of level, near-level, slightly-rugged, intermediately-rugged, moderately-rugged, highly-rugged, and extremely-rugged.
Figure 6.
The distribution of irreplaceable units on (A) HDI, (B) elevation, and (C) TRI zones.
See Figure 5 for the explanation of numbers 1 to 7 on the horizontal axes.
Figure 7.
The distribution of the 23 primary large-scale priority areas.
1 – Daxing'anling Mountain, 2 – Xiaoxing'anling Mountain, 3 – Sanjiang Plain, 4 – Changbai Mountain, 5 – Hulunbuir Grassland, 6 – Xilingol Grassland, 7 – Alashan-Ordos Region, 8 – Altai Mountain, 9 – Tianshan Mountain, 10 – Pamirs Plateau, 11 – Qilian Mountain, 12 – Sanjiangyuan-Qiangtang Region, 13 – Southeast Himalaya Mountain, 14 – Hengduan Mountain, 15 – Qinling Mountain, 16 – Daba Mountain, 17 – Dabieshan Mountain, 18 – Mountain Region connecting Fujian-Zhejiang-Jiangxi-Anhui, 19 – Wuling Mountain, 20 – Nanling Mountain, 21 – Mountain Region in western Guangxi, 22 – Xishuangbanna, and 23 – Southern Hainan Island.