循環農業：農業有機循環再利用的多合一創新碳匯技術開發【土壤環境科學系/沈佛亭教授】
| 論文篇名 | 英文：Dose Effect of Polyethylene Microplastics Derived from Commercial Resins on Soil Properties, Bacterial Communities, and Enzymatic Activity 中文：聚乙烯塑膠微粒對土壤性質、酵素活性與細菌群落結構之影響研究 |
| 期刊名稱 | Microorganisms |
| 發表年份,卷數,起迄頁數 | 2024, 12: 1790 |
| 作者 | Lesbia Gicel Cruz; Fo-Ting Shen(沈佛亭)*; Chiou-Pin Chen; Wen-Ching Chen |
| DOI | 10.3390/microorganisms12091790 |
| 中文摘要 | 塑膠微粒屬於新興的環境汙染物，探討其對於土壤性質與微生物之影響有其重要性。本研究旨在解析添加不同濃度之塑膠微粒-聚乙烯至土壤後，對於土壤化學性質、酵素活性與細菌群落結構之影響。研究結果顯示添加低濃度的聚乙烯後明顯影響土壤中交換性鈣和鎂含量，高濃度聚乙烯處理則明顯改變土壤pH值與有效性磷含量，研究中分析之三種土壤酵素亦會受到不同濃度聚乙烯之添加影響其活性。細菌群落結構分析結果顯示即使低濃度之聚乙烯添加，即會改變土壤中特定菌門與菌科類群細菌之豐富度。 |
| 英文摘要 | Soils are the largest reservoir of microplastics (MPs) on earth. Since MPs can remain in soils for a very long time, their effects are magnified. In this study, different concentrations of polyethylene (PE) MPs derived from commercial resins (0%, 1%, 7%, and 14%, represented as MP_0, MP_1, MP_7, and MP_14) were added to soils to assess the changes in the soils’ chemical properties, enzyme activities, and bacterial communities during a 70-day incubation period. The results show that PE MP treatments with low concentrations differed from other treatments in terms of exchangeable Ca and Mg, whereas at high concentrations, the pH and availability of phosphate ions differed. Fluorescein diacetate (FDA), acid phosphatase (ACP), and N-acetyl-β-d-glucosaminidase (NAG) enzyme activities exhibited a dose-related trend with the addition of the PE MPs; however, the average FDA and ACP activities were significantly affected only by MP_14. Changes in the microbial communities were observed at both the phylum and family levels with all PE MP treatments. It was revealed that even a low dosage of PE MPs in soils can affect the functional microbes, and a greater impact is observed on those that can survive in polluted environments with limited resources. |
| 發表成果與本中心研究主題相關性 | 本研究旨在探討塑膠微粒對於土壤化學性質、酵素活性與細菌群落結構之影響，研究成果有助於評估新興環境汙染物對農業生態環境之危害及發展復育技術。 |
