| The mass ratios of Pb, Zn, As, Cu, Cr and Hg were monitored at 25 soil sampling sites in an area of 8 km2 radiating outward from Fankou lead-zinc mine in Shaoguan, Guangdong Province. A land use regression (LUR) model was built to simulate the spatial distribution of mass ratios of these 6 elements. The results showed that the mass ratios of different elements were greatly affected by geographical factors. The spatial distribution of Pb and As was greatly affected by roads, and the high value areas were zoned along roads. Zn and Cu were affected by natural factors and land use, and their high values were scattered. The spatial distribution of Cr was mainly affected by natural factors such as topography and precipitation. The overall element mass ratio in the study area was low, and the element mass ratio in the western area was lower than that in the eastern area, the element mass ratio in the southern area was lower than that in the northern area. |
