fig1
From: Evolution of urban green space carbon sinks and their value in the arid region of Northwest China
Figure 1. Overview of the study area: (A) Location of Gansu Province, China (gray); (B) Location of the main urban area of Lanzhou (red); (C) DEM elevation map of the main urban area of Lanzhou; (D) GDP, 2000-2020; (E) Permanent population, 2000-2020.
