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Impacts of Biochar on Physical Properties and Erosion Potential of a Mudstone Slopeland Soil

Food demand and soil sustainability have become urgent issues recently because of the global climate changes. This study aims to evaluate the application of a biochar produced by rice hull, on changes of physiochemical characteristics and erosion potential of a degraded slopeland soil. Rice hull bio...

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Autores principales: Hseu, Zeng-Yei, Jien, Shih-Hao, Chien, Wei-Hsin, Liou, Ruei-Cheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4274655/
https://www.ncbi.nlm.nih.gov/pubmed/25548787
http://dx.doi.org/10.1155/2014/602197
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author Hseu, Zeng-Yei
Jien, Shih-Hao
Chien, Wei-Hsin
Liou, Ruei-Cheng
author_facet Hseu, Zeng-Yei
Jien, Shih-Hao
Chien, Wei-Hsin
Liou, Ruei-Cheng
author_sort Hseu, Zeng-Yei
collection PubMed
description Food demand and soil sustainability have become urgent issues recently because of the global climate changes. This study aims to evaluate the application of a biochar produced by rice hull, on changes of physiochemical characteristics and erosion potential of a degraded slopeland soil. Rice hull biochar pyrolized at 400°C was incorporated into the soil at rates of 2.5%, 5%, and 10% (w/w) and was incubated for 168 d in this study. The results indicated that biochar application reduced the Bd by 12% to 25% and the PR by 57% to 92% after incubation, compared with the control. Besides, porosity and aggregate size increased by 16% to 22% and by 0.59 to 0.94 mm, respectively. The results presented that available water contents significantly increased in the amended soils by 18% to 89% because of the obvious increase of micropores. The water conductivity of the biochar-amended soils was only found in 10% biochar treatment, which might result from significant increase of macropores and reduction of soil strength (Bd and PR). During a simulated rainfall event, soil loss contents significantly decreased by 35% to 90% in the biochar-amended soils. In conclusion, biochar application could availably raise soil quality and physical properties for tilth increasing in the degraded mudstone soil.
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spelling pubmed-42746552014-12-29 Impacts of Biochar on Physical Properties and Erosion Potential of a Mudstone Slopeland Soil Hseu, Zeng-Yei Jien, Shih-Hao Chien, Wei-Hsin Liou, Ruei-Cheng ScientificWorldJournal Research Article Food demand and soil sustainability have become urgent issues recently because of the global climate changes. This study aims to evaluate the application of a biochar produced by rice hull, on changes of physiochemical characteristics and erosion potential of a degraded slopeland soil. Rice hull biochar pyrolized at 400°C was incorporated into the soil at rates of 2.5%, 5%, and 10% (w/w) and was incubated for 168 d in this study. The results indicated that biochar application reduced the Bd by 12% to 25% and the PR by 57% to 92% after incubation, compared with the control. Besides, porosity and aggregate size increased by 16% to 22% and by 0.59 to 0.94 mm, respectively. The results presented that available water contents significantly increased in the amended soils by 18% to 89% because of the obvious increase of micropores. The water conductivity of the biochar-amended soils was only found in 10% biochar treatment, which might result from significant increase of macropores and reduction of soil strength (Bd and PR). During a simulated rainfall event, soil loss contents significantly decreased by 35% to 90% in the biochar-amended soils. In conclusion, biochar application could availably raise soil quality and physical properties for tilth increasing in the degraded mudstone soil. Hindawi Publishing Corporation 2014 2014-12-08 /pmc/articles/PMC4274655/ /pubmed/25548787 http://dx.doi.org/10.1155/2014/602197 Text en Copyright © 2014 Zeng-Yei Hseu et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Hseu, Zeng-Yei
Jien, Shih-Hao
Chien, Wei-Hsin
Liou, Ruei-Cheng
Impacts of Biochar on Physical Properties and Erosion Potential of a Mudstone Slopeland Soil
title Impacts of Biochar on Physical Properties and Erosion Potential of a Mudstone Slopeland Soil
title_full Impacts of Biochar on Physical Properties and Erosion Potential of a Mudstone Slopeland Soil
title_fullStr Impacts of Biochar on Physical Properties and Erosion Potential of a Mudstone Slopeland Soil
title_full_unstemmed Impacts of Biochar on Physical Properties and Erosion Potential of a Mudstone Slopeland Soil
title_short Impacts of Biochar on Physical Properties and Erosion Potential of a Mudstone Slopeland Soil
title_sort impacts of biochar on physical properties and erosion potential of a mudstone slopeland soil
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4274655/
https://www.ncbi.nlm.nih.gov/pubmed/25548787
http://dx.doi.org/10.1155/2014/602197
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