TY - EJOUR
AU - Liu, Zhen
AU - Zhao, Xiaolong
AU - Zhou, Wanyan
AU - Liu, Yuanyuan
AU - Cao, Pingping
AU - Wu, Jiaxuan
AU - Guo, Xuerui
AU - Xu, Yupeng
PY - 2024
DA - July
TI - Microbial and organic carbon mineralization in saline soil aggregates under different microplastic concentrations
T2 - International Journal of Industrial Chemistry
VL - 15
L1 - https://oiccpress.com/international-journal-of-industrial-chemistry/article/microbial-and-organic-carbon-mineralization-in-saline-soil-aggregates-under-different-microplastic-concentrations/
DO - 10.57647/j.ijic.2024.1502.13
N2 - Plastic products are widely used in various fields, but the lack of effective means of recycling and disposal has led to the spread of plastics in the form of particles  throughout the ecosystem. To examine the impact of microplastics on saline soils, the study was verified experimentally by adding microplastics of different sizes and concentrations to saline soil samples. The results showed that 25 um microplastics decreased the dissolved organic carbon content of organic matter saline soil, but had little effect on high organic matter soil samples. On the other hand, 1 mm microplastics increased the dissolved organic carbon content of organic matter soil samples; the highest organic carbon content was found at a microplastic concentration of 1.92 g/kg. Meanwhile, microplastics of different sizes increased the  microbial amount carbon content of the soil samples, with increases ranging from about 24.3% to 108.9%. In addition, small diameter microplastic particles increased the rate of organic carbon mineralization in saline soils by up to 38.5%. Large diameter microplastic particles decreased the rate of organic carbon  mineralization by up to 32.2%. The results demonstrate that the microplastic particle size can indirectly influence the water stability aggregate content by affecting the soil organic carbon mineralization rate and the soil microbial biomass and carbon content. This study examines the relationship between microplastics and soil biochemical processes under the influence of both biological and abiotic factors, which is of great significance for understanding the potential impact of  microplastic pollution on carbon sequestration.
IS - 2
PB - OICC Press
KW - Degree of destruction, Polyethylene, Microplastics, Dissolved organic carbon, Organic carbon mineralization, Microbial biomass carbon, Soil aggregate 
EN -