Effect of Multiyear Biodegradable Plastic Mulch on Soil Microbial Community, Assembly, and Functioning

Microorganisms, Год журнала: 2025, Номер 13(2), С. 259 - 259

Опубликована: Янв. 24, 2025

The increasing use of biodegradable plastic mulch like polybutylene adipate terephthalate (PBAT) has raised concerns about its long-term environmental impact. In this study, we investigated the effects multiyear PBAT application on bacterial and fungal communities, assembly mechanisms, key ecological functions. microbial community diversity composition were significantly altered after mulching. We observed that treatment enriched specific genera, such as Pantoea, potentially involved in degradation, genera Cephaliophora Stephanosporaceae, which may play a role organic matter decomposition. A null model analysis revealed was largely shaped by deterministic processes, with stronger selection pressures PBAT-treated soils, while communities more influenced stochastic processes. addition, also impacted functionality soil communities. exposure enhanced biofilm formation aerobic bacteria, promoting degradation processes reducing abundance stress-tolerant bacteria. Additionally, functions related to carbon, nitrogen, sulfur cycling. Notably, exhibited functional shifts, an increase saprotrophic fungi being beneficial for nutrient cycling, alongside potential rise plant pathogenic fungi. These findings underscore impacts plastics, suggesting adaptation changes functions, implications agricultural sustainability bioremediation strategies.

Язык: Английский

Self-Organizing Map-Based Assessment of Compost Maturity and Cu/Zn Passivation in Biochar-Amended Pig Manure

Agronomy, Год журнала: 2025, Номер 15(4), С. 778 - 778

Опубликована: Март 22, 2025

The accumulation of copper (Cu) and zinc (Zn) from piglet feed, coupled with inadequate compost maturation, hinders the safe land application pig manure (PM). This study employed self-organizing maps (SOMs) integrated three-dimensional excitation–emission matrix fluorescence spectroscopy (3D-EEM) parallel factor analysis (PARAFAC) to evaluate PM maturity Cu/Zn passivation under different biochar (BC) dosages (0%, 8%, 10%, 12%). results revealed that SOM clustering effectively distinguished composting phases organic matter transformation trends, while network identified key microbial modules (M5, M6) linked passivation. Moreover, 12% BC accelerated maximizing humic content (C1: anthropogenic; C4: terrestrial) by increasing Luteimonas abundance (241.98%) reducing Terrisporobacter (92%). It also achieved highest Cu (36.36%) Zn (32.34%) Although 10% promoted C4 synthesis but inhibited C1 formation, it ultimately reached a similar level BC. Additionally, demonstrated comparable (34.85%) (27.89%) passivation, making more cost-effective alternative. These findings highlight as robust tool for evaluation, optimizing improving efficiency.

Язык: Английский

Hydrogen peroxide-aged biochar mitigating greenhouse gas emissions during Co-composting of swine manure with rice bran

Environmental Pollution, Год журнала: 2025, Номер 374, С. 126255 - 126255

Опубликована: Апрель 14, 2025

Язык: Английский