Abstract
An improved method was applied for remediating cadmium and copper co-contaminated soil and reducing the metal concentration in
Rhizoma chuanxiong
. Pot experiments were conducted with six amendments (composed with bentonite, phosphate, humic acid, biochar, sepiolite powder, etc.). The results showed that soil pH, biological activities (soil enzymatic activities and microbial counts) and
R. chuanxiong
biomass were greatly improved with the addition of amendments in all treatments, especially in T3 and T6. Also, amendments effectively decreased the concentration of malondialdehyde and H
2
O
2
in
R. chuanxiong
. In the T3 treatment, the bio-available Cd and Cu in soil were significantly decreased by 0.53 and 0.41 mg kg
−1
, respectively. Meanwhile, the amendment in T3 reduced Cd and Cu accumulation in
R. chuanxiong
about 45.83 and 39.37%, respectively, compared to T0. Moreover, the Fourier transform infrared spectroscopy spectra showed the surface functional groups of every amendment. To conclude, this study offers an effective and environmental method to reduce metal accumulation in
R. chuanxiong
on heavy metal co-contaminated soil.
Funder
the National Science and Technology Supporting Program
Agricultural science and Technology Achievements Transformation Program of Sichuan Province
the Key Research and Development Program of Sichuan Province
the Science and Technology Support Program of Sichuan Province
Cited by
26 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献