文献类型：期刊文献

英文题名：Insight into the Compound Risk of Decabromodiphenyl Ethane and Cadmium to Soil Health in Agroecosystems: From Soil Quality to Plant Health

作者：Han, Yanna[1]; Zhao, Xuan[1]; Qiao, Zhihua[1]; Liang, Weiyu[1]; Liu, Tianzi[1]; Peng, Cheng[1]; Zhang, Wei[1]

机构：[1] State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2025

外文期刊名：SSRN

收录：EI(收录号：20250094255)

语种：英文

外文关键词：Abiotic - Biotic - Fertilizers

摘要：Soil serves as the habitat for numerous organisms and is increasingly threatened from contamination of novel brominated flame retardant (NBFRs) and heavy metals (HMs), which have emerged as global problems in terrestrial ecosystems. Focusing on Deca-bromodiphenyl ethane (DBDPE) and cadmium (Cd) as the targets, we constructed a soil-lettuce-earthworm microcosm to explore the effects of co-pollution on properties, microbial communities and elemental cycling genes in rhizosphere soils. Co-pollution initially affected soil properties and Cd fractionation, increasing ecological risks. In turn, the normal elemental cycle was also disturbed. Notably, C cycling was inhibited in soil, as evidenced by decreased sucrase activity, cation exchange capacity, and C cycling genes, leading to a reduction in bioavailable C sources. Meanwhile, soil N-cycling genes and denitrification processes were significantly inhibited, while nitrification was enhanced. In addition, co-pollution disrupted the structure of soil microbiota, reducing community cooperation and stability. Ultimately, the lack of nutrient uptake by soil organisms interfered with the normal growth of plants, exhibiting the compound risks caused by both DBDPE and Cd in soil. This study extended the current knowledge of ecological and health risks caused by NBFRs and HMs co-pollution in soil-plant-animal agroecosystems. ? 2025, The Authors. All rights reserved.