Quantification and Analysis of Microplastics in Farmland Soils: Characterization, Sources, and Pathways

被引：31

作者：

Fakour, Hoda ^{[1
]}

Lo, Shang-Lien ^{[2
,3
]}

Yoashi, Nathan Thadeo ^{[1
]}

Massao, Angelbetter Marselian ^{[1
]}

Lema, Nelson Naboth ^{[1
]}

Mkhontfo, Fezile Bethusile ^{[1
]}

Jomalema, Patrick Chris ^{[1
]}

Jumanne, Nasra Shabani ^{[1
]}

Mbuya, Bright Hubert ^{[1
]}

Mtweve, James Travor ^{[1
]}

Imani, Moslem ^{[4
]}

机构：

[1] Chang Jung Christian Univ, Int Coll Practice & Educ Environm, Int Program Sustainable Dev, 1 Changda Rd, Tainan 71101, Taiwan

[2] Natl Taiwan Univ, Grad Inst Environm Engn, 1,Sec 4,Roosevelt Rd, Taipei 106, Taiwan

[3] Natl Taiwan Univ, Coll Engn, Water Innovat Low Carbon & Environm Sustainabil R, Taipei 106, Taiwan

[4] Natl Cheng Kung Univ, Dept Geomat Engn, 1 Univ Rd, Tainan 701, Taiwan

来源：

AGRICULTURE-BASEL | 2021年 / 11卷 / 04期

关键词：

microplastics; farmland; soil; polyethylene; fibers; fragments; foams; PLASTIC DEBRIS; AGRICULTURAL SOILS; KNOWLEDGE GAPS; FATE; ENVIRONMENT; TRANSPORT; ABUNDANCE; POLLUTION; COAST;

D O I：

10.3390/agriculture11040330

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

While microplastics (MPs) have been identified extensively in aquatic ecosystems, their presence remains largely unexplored in soil ecosystems. Considering the potential effect of MPs on soil biodiversity and function, the present study investigated and analyzed the abundance and characteristics of MPs in soil profile. Taking soil samples from Tainan city farms, as one of the hotspots of agricultural practices in Taiwan, concentrations, types, compositions, pathways, and sources of MPs in farmland soils were quantified. Results showed that MPs were found in all soil samples in different depths ranging from 12-117 items/m(2) and MP abundance in farms adjacent to the suburban roads was about three times more than in enclosed farms separated from roads. Fragment and fibers were the main forms and low-density polyethylene was the dominant polymer of detected MPs. Historical land use, extensive application of plastic mulch, and utilization of fruit protection foams were identified as the main sources of MPs in farmlands. This study identifies the presence of MP emissions in farmland soils and investigates its features, which could serve as a framework for future studies into the ecological effects of MPs in the terrestrial environment.

引用

页数：16