Introducing sedum affects root‐soil interface phytoremediation of heavy metals in lei bamboo forest and potential risks from edible bamboo shoots

• DOI: 10.1002/ldr.4571
• Publication Date: 2022-12-12T04:23:30Z
• Authors: Fangyuan Bian; Xiaoping Zhang; Zheke Zhong; Xing Wen; Chengming Xiu; Qiaoling Li; Zhiyuan Huang
• Keywords: Intercropping; Monoculture

Abstract Introducing hyperaccumulators in bamboo forests is an efficient method for heavy metals (HMs) pollution control. HMs can be transferred from soil to and accumulate edible shoots. However, how phytoremediation or cropping systems affect root‐soil interface transference of shoots unknown. In this study, lei Sedum plumbizincicola were planted as a monoculture intercropping system (bamboo/sedum) on contaminated land. Soil properties, rhizosphere bacterial communities, concentrations plants soils compared among (B), (BI), sedum (SI), (S). BI, the total nitrogen was 10.8% lower, while organic carbon (TOC) 12.3% higher than B; removal amount BI B, especially cadmium. Intercropping increased concentrations, bioconcentration factor, translocation hazard quotient Significant differences community structures confirmed by principal coordinate analysis. Gemmatimonadetes, Actinobacteria, Chloroflexi, Kaistobacter identified biomarkers that significantly intercropping, enhancing diversity ecological functions rhizosphere. Redundancy analysis revealed communities correlated with TOC available phosphorus. could remarkably alter chemical microbiological properties facilitate ecosystem restoration sequestration, activating rhizobacterial at interface, finally increasing removal. As consumption grown may pose health risks, more attention needed issue studies.