PMID- 34492872
OWN - NLM
STAT- MEDLINE
DCOM- 20210920
LR  - 20210920
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 416
DP  - 2021 Aug 15
TI  - Fate of plastic film residues in agro-ecosystem and its effects on 
      aggregate-associated soil carbon and nitrogen stocks.
PG  - 125954
LID - S0304-3894(21)00918-3 [pii]
LID - 10.1016/j.jhazmat.2021.125954 [doi]
AB  - Biodegradable (Bio) plastic films are widely viewed as promising alternative 
      products of low-density polyethylene (LDPE) films to minimize plastic debris 
      accumulation and pollution in agroecosystems. Yet, this speculation indeed lacks 
      of sufficient evidences. We conducted a landfill investigation on the aging 
      characteristics of Bio and LDPE plastic films in maize field, and the effects on 
      soil aggregate composition and carbon & nitrogen stocks. The degradation rate of 
      Bio film was up to 41.1% while that of LDPE film was zero. Scanning electron 
      microscope (SEM) showed that the crack formation of Bio film had a pronounced 
      domino effect, and FTIR showed that old Bio film displayed an extra wide peak 
      threshold ranging from 3000 to 3500 cm(-1). Particularly, the abundance of 
      microplastics was elevated with the increased plastic residues, and the increment 
      mostly resulted from Bio residues. Critically, plastic residues significantly 
      lowered the soil macro-aggregates (>0.25 mm) proportion, while increasing that of 
      micro-aggregates (0.1-0.25 mm) in LDPE, and silt/clay fraction (<0.1 mm) in Bio 
      respectively. They significantly promoted total nitrogen content of the 
      aggregates with the same size, but decreased the organic carbon content, 
      dramatically lowering the C/N. Therefore, we first identified the fate of plastic 
      film residues in agroecosystems and revealed the serious deficiencies of Bio 
      plastic film.
CI  - Copyright (c) 2021 Elsevier B.V. All rights reserved.
FAU - Zhao, Ze-Ying
AU  - Zhao ZY
AD  - State Key Laboratory of Grassland Agro-Ecosystems, Institute of Arid 
      Agro-Ecology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China; 
      Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences 
      (CAS), Lanzhou 730030, China; University of Chinese Academy of Sciences, Beijing 
      100049, China.
FAU - Wang, Peng-Yang
AU  - Wang PY
AD  - State Key Laboratory of Grassland Agro-Ecosystems, Institute of Arid 
      Agro-Ecology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China.
FAU - Wang, Yi-Bo
AU  - Wang YB
AD  - Gansu Key Laboratory of Resource Utilization of Agricultural Solid Wastes, 
      Tianshui Normal University, Tianshui 741000, China.
FAU - Zhou, Rui
AU  - Zhou R
AD  - School of Ecology and Environmental Science, Yunnan University, Kunming 650091, 
      China.
FAU - Koskei, Kiprotich
AU  - Koskei K
AD  - State Key Laboratory of Grassland Agro-Ecosystems, Institute of Arid 
      Agro-Ecology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China.
FAU - Munyasya, Alex Ndolo
AU  - Munyasya AN
AD  - State Key Laboratory of Grassland Agro-Ecosystems, Institute of Arid 
      Agro-Ecology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China.
FAU - Liu, Shu-Tong
AU  - Liu ST
AD  - State Key Laboratory of Grassland Agro-Ecosystems, Institute of Arid 
      Agro-Ecology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China.
FAU - Wang, Wei
AU  - Wang W
AD  - State Key Laboratory of Grassland Agro-Ecosystems, Institute of Arid 
      Agro-Ecology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China.
FAU - Su, Yong-Zhong
AU  - Su YZ
AD  - Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences 
      (CAS), Lanzhou 730030, China; University of Chinese Academy of Sciences, Beijing 
      100049, China.
FAU - Xiong, You-Cai
AU  - Xiong YC
AD  - State Key Laboratory of Grassland Agro-Ecosystems, Institute of Arid 
      Agro-Ecology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China; 
      Gansu Key Laboratory of Resource Utilization of Agricultural Solid Wastes, 
      Tianshui Normal University, Tianshui 741000, China. Electronic address: 
      xiongyc@lzu.edu.cn.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20210427
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 0 (Biodegradable Plastics)
RN  - 0 (Plastics)
RN  - 0 (Soil)
RN  - 7440-44-0 (Carbon)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - Agriculture
MH  - *Biodegradable Plastics
MH  - Carbon
MH  - Ecosystem
MH  - Nitrogen
MH  - Plastics
MH  - *Soil
OTO - NOTNLM
OT  - Biodegradable plastic film
OT  - Microplastics (MPs)
OT  - Plastic residues
OT  - Soil aggregates
OT  - Soil nutrients
EDAT- 2021/09/09 06:00
MHDA- 2021/09/21 06:00
CRDT- 2021/09/08 01:02
PHST- 2020/12/21 00:00 [received]
PHST- 2021/04/20 00:00 [revised]
PHST- 2021/04/20 00:00 [accepted]
PHST- 2021/09/08 01:02 [entrez]
PHST- 2021/09/09 06:00 [pubmed]
PHST- 2021/09/21 06:00 [medline]
AID - S0304-3894(21)00918-3 [pii]
AID - 10.1016/j.jhazmat.2021.125954 [doi]
PST - ppublish
SO  - J Hazard Mater. 2021 Aug 15;416:125954. doi: 10.1016/j.jhazmat.2021.125954. Epub 
      2021 Apr 27.