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Bio-Matrix Pot Addition Enhanced the Vegetation Process of Iron Tailings by Pennisetum giganteum

The barrenness of large mine tailing sand reservoirs increases the risks for landslides and erosion that may be accompanied with transfer of contaminants into the surrounding environment. The tailing sand is poor in nutrients, which effectively complicates the vegetation process. We investigated dir...

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Autores principales: Liu, Yihao, Yu, Jinyang, Wang, Zuyu, Penttinen, Petri, Yu, Xiumei, Zhao, Ke, Ma, Menggen, Xiang, Quanju, Gu, Yunfu, Liu, Hanjun, Zhang, Xiaoping, Chen, Qiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9022075/
https://www.ncbi.nlm.nih.gov/pubmed/35464933
http://dx.doi.org/10.3389/fmicb.2022.825660
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author Liu, Yihao
Yu, Jinyang
Wang, Zuyu
Penttinen, Petri
Yu, Xiumei
Zhao, Ke
Ma, Menggen
Xiang, Quanju
Gu, Yunfu
Liu, Hanjun
Zhang, Xiaoping
Chen, Qiang
author_facet Liu, Yihao
Yu, Jinyang
Wang, Zuyu
Penttinen, Petri
Yu, Xiumei
Zhao, Ke
Ma, Menggen
Xiang, Quanju
Gu, Yunfu
Liu, Hanjun
Zhang, Xiaoping
Chen, Qiang
author_sort Liu, Yihao
collection PubMed
description The barrenness of large mine tailing sand reservoirs increases the risks for landslides and erosion that may be accompanied with transfer of contaminants into the surrounding environment. The tailing sand is poor in nutrients, which effectively complicates the vegetation process. We investigated direct planting of Pennisetum giganteum into tailing sand using two pit planting methods: the plants were transplanted either directly into pits filled with soil or into soil-filled bio-matrix pots made of organic material. After growing P. giganteum in iron tailing sand for 360 days, the dry weight of the plants grown in the bio-matrix pot (T2) was approximately twofold higher than that of the plants grown in soil placed directly into the sand (T1). At 360 days, the organic matter (OM) content in the soil below the pit was the lowest in the not-planted treatment (T0) and the highest in T2, the available N (AN) contents were higher in T1 and T2 than in T0, and the available P and K contents were the highest in T2. At 360 days, the Shannon diversity of the soil microbial communities was higher in T1 and T2 than in T0, and the community compositions were clearly separated from each other. The profiles of predicted C cycle catabolism functions and N fixation-related functions in T1 and T2 at 360 days were different from those in the other communities. The results showed that P. giganteum grew well in the iron tailing sand, especially in the bio-matrix pot treatment, and the increased nutrient contents and changes in microbial communities indicated that using the bio-matrix pot in planting had potential to improve the vegetation process in iron tailing sands effectively.
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spelling pubmed-90220752022-04-22 Bio-Matrix Pot Addition Enhanced the Vegetation Process of Iron Tailings by Pennisetum giganteum Liu, Yihao Yu, Jinyang Wang, Zuyu Penttinen, Petri Yu, Xiumei Zhao, Ke Ma, Menggen Xiang, Quanju Gu, Yunfu Liu, Hanjun Zhang, Xiaoping Chen, Qiang Front Microbiol Microbiology The barrenness of large mine tailing sand reservoirs increases the risks for landslides and erosion that may be accompanied with transfer of contaminants into the surrounding environment. The tailing sand is poor in nutrients, which effectively complicates the vegetation process. We investigated direct planting of Pennisetum giganteum into tailing sand using two pit planting methods: the plants were transplanted either directly into pits filled with soil or into soil-filled bio-matrix pots made of organic material. After growing P. giganteum in iron tailing sand for 360 days, the dry weight of the plants grown in the bio-matrix pot (T2) was approximately twofold higher than that of the plants grown in soil placed directly into the sand (T1). At 360 days, the organic matter (OM) content in the soil below the pit was the lowest in the not-planted treatment (T0) and the highest in T2, the available N (AN) contents were higher in T1 and T2 than in T0, and the available P and K contents were the highest in T2. At 360 days, the Shannon diversity of the soil microbial communities was higher in T1 and T2 than in T0, and the community compositions were clearly separated from each other. The profiles of predicted C cycle catabolism functions and N fixation-related functions in T1 and T2 at 360 days were different from those in the other communities. The results showed that P. giganteum grew well in the iron tailing sand, especially in the bio-matrix pot treatment, and the increased nutrient contents and changes in microbial communities indicated that using the bio-matrix pot in planting had potential to improve the vegetation process in iron tailing sands effectively. Frontiers Media S.A. 2022-04-07 /pmc/articles/PMC9022075/ /pubmed/35464933 http://dx.doi.org/10.3389/fmicb.2022.825660 Text en Copyright © 2022 Liu, Yu, Wang, Penttinen, Yu, Zhao, Ma, Xiang, Gu, Liu, Zhang and Chen. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Liu, Yihao
Yu, Jinyang
Wang, Zuyu
Penttinen, Petri
Yu, Xiumei
Zhao, Ke
Ma, Menggen
Xiang, Quanju
Gu, Yunfu
Liu, Hanjun
Zhang, Xiaoping
Chen, Qiang
Bio-Matrix Pot Addition Enhanced the Vegetation Process of Iron Tailings by Pennisetum giganteum
title Bio-Matrix Pot Addition Enhanced the Vegetation Process of Iron Tailings by Pennisetum giganteum
title_full Bio-Matrix Pot Addition Enhanced the Vegetation Process of Iron Tailings by Pennisetum giganteum
title_fullStr Bio-Matrix Pot Addition Enhanced the Vegetation Process of Iron Tailings by Pennisetum giganteum
title_full_unstemmed Bio-Matrix Pot Addition Enhanced the Vegetation Process of Iron Tailings by Pennisetum giganteum
title_short Bio-Matrix Pot Addition Enhanced the Vegetation Process of Iron Tailings by Pennisetum giganteum
title_sort bio-matrix pot addition enhanced the vegetation process of iron tailings by pennisetum giganteum
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9022075/
https://www.ncbi.nlm.nih.gov/pubmed/35464933
http://dx.doi.org/10.3389/fmicb.2022.825660
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