Research Article
Lead and Chromium Immobilization Process Subjected to Different Freeze-Thaw Treatments in Soils of the Northeastern Qinghai-Tibet Plateau
Figure 2
Adsorption amounts and desorption rates for Pb and Cr by soils under different freeze-thaw conditions. F0 and F15 refer to the number of freeze-thaw cycles (0 and 15 cycles), and W0%, W60%, and W100% refer to water ratio of field capacity (0%, 60%, and 100% water ratio).
(a) |
(b) |
(c) |
(d) |
(e) |
(f) |
(g) |
(h) |