Published: Jan. 1, 2023

Soil plastic pollution is a global environmental problem that seriously endangers food security and human health. Plastics are widely detected in arid semiarid agricultural soils, resulting serious threat to dryland farmlands. Nevertheless, the effects of various film residues on plastisphere bacterial community have not been well studied. Herein, 6-year experiment was conducted cropland Loess Plateau China investigate soil burial degradation three types films kinds residue ambient diversity, composition function. The scanning electron microscopy analysis showed cracks holes developed surface during degradation. Gas chromatography-mass spectrometry presence 23 short-chain alkanes, 3 alkenes 2 esters. most abundant alkanes were n-octane n-nonane, with content 15.25 mg/kg 12.93 mg/kg, respectively. trans-squalene highest among alkenes. High-throughput sequencing demonstrated bacteria’s diversity structure significantly altered after residual soil. exhibited higher alpha than Proteobacteria, Acidobacteria Actinobacteria phyla. Plastic can serve as unique habitat for microorganisms, thereby increasing some taxa,- such Actinobacteria, Bacteroidota. functional prediction results indicated could effectively augment groups related carbon cycle These findings show novel perspective how responds residues, emphasizing need explore ecological health risks

Language: Английский