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Effects of biochars derived from different feedstocks and pyrolysis temperatures on soil physical and hydraulic properties

Purpose Biochar addition to soils potentially affects various soil properties, and these effects are dependent on biochars derived from different feedstock materials and pyrolysis processes. The objective of this study was to investigate the effects of amendment of different biochars on soil physica... Full description

Journal Title: Journal of soils and sediments 2013-07-18, Vol.13 (9), p.1561-1572
Main Author: Lei, Ouyang
Other Authors: Zhang, Renduo
Format: Electronic Article Electronic Article
Language: English
Subjects:
Publisher: Berlin/Heidelberg: Springer Berlin Heidelberg
ID: ISSN: 1439-0108
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title: Effects of biochars derived from different feedstocks and pyrolysis temperatures on soil physical and hydraulic properties
format: Article
creator:
  • Lei, Ouyang
  • Zhang, Renduo
subjects:
  • Analysis
  • Earth and Environmental Science
  • Environ Risk Assess
  • Environment
  • Environmental Physics
  • Forest soils
  • general
  • Pyrolysis
  • Sec 2 • Global Change
  • Soil Science & Conservation
  • Soil structure
  • Soils
  • Sustainable Land Use • Research Article
ispartof: Journal of soils and sediments, 2013-07-18, Vol.13 (9), p.1561-1572
description: Purpose Biochar addition to soils potentially affects various soil properties, and these effects are dependent on biochars derived from different feedstock materials and pyrolysis processes. The objective of this study was to investigate the effects of amendment of different biochars on soil physical and hydraulic properties. Materials and methods Biochars were produced with dairy manure and woodchip at temperatures of 300, 500, and 700 °C, respectively. Each biochar was mixed at 5 % ( w/w ) with a forest soil, and the mixture was incubated for 180 days, during which soil physical and hydraulic properties were measured. Results and discussion Results showed that the biochar addition significantly enhanced the formation of soil macroaggregates at the early incubation time. The biochar application significantly reduced soil bulk density, increased the amount of soil organic matter, and stimulated microbial activity at the early incubation stage. Saturated hydraulic conductivities of the soil with biochars, especially produced at high pyrolysis temperature, were higher than those without biochars on the sampling days. The treatments with woodchip biochars resulted in higher saturated hydraulic conductivities than the dairy manure biochar treatments. Biochar applications improved water retention capacity, with stronger effects by biochars produced at higher pyrolysis temperatures. At the same suction, the soil with woodchip biochars possessed higher water content than that with the dairy manure biochars. Conclusions Biochar addition significantly affected the soil physical and hydraulic properties. The effects were different with biochars derived from different feedstock materials and pyrolysis temperatures.
language: eng
source:
identifier: ISSN: 1439-0108
fulltext: no_fulltext
issn:
  • 1439-0108
  • 1614-7480
url: Link


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titleEffects of biochars derived from different feedstocks and pyrolysis temperatures on soil physical and hydraulic properties
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descriptionPurpose Biochar addition to soils potentially affects various soil properties, and these effects are dependent on biochars derived from different feedstock materials and pyrolysis processes. The objective of this study was to investigate the effects of amendment of different biochars on soil physical and hydraulic properties. Materials and methods Biochars were produced with dairy manure and woodchip at temperatures of 300, 500, and 700 °C, respectively. Each biochar was mixed at 5 % ( w/w ) with a forest soil, and the mixture was incubated for 180 days, during which soil physical and hydraulic properties were measured. Results and discussion Results showed that the biochar addition significantly enhanced the formation of soil macroaggregates at the early incubation time. The biochar application significantly reduced soil bulk density, increased the amount of soil organic matter, and stimulated microbial activity at the early incubation stage. Saturated hydraulic conductivities of the soil with biochars, especially produced at high pyrolysis temperature, were higher than those without biochars on the sampling days. The treatments with woodchip biochars resulted in higher saturated hydraulic conductivities than the dairy manure biochar treatments. Biochar applications improved water retention capacity, with stronger effects by biochars produced at higher pyrolysis temperatures. At the same suction, the soil with woodchip biochars possessed higher water content than that with the dairy manure biochars. Conclusions Biochar addition significantly affected the soil physical and hydraulic properties. The effects were different with biochars derived from different feedstock materials and pyrolysis temperatures.
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2DOI: 10.1007/s11368-013-0738-7
languageeng
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subjectAnalysis ; Earth and Environmental Science ; Environ Risk Assess ; Environment ; Environmental Physics ; Forest soils ; general ; Pyrolysis ; Sec 2 • Global Change ; Soil Science & Conservation ; Soil structure ; Soils ; Sustainable Land Use • Research Article
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descriptionPurpose Biochar addition to soils potentially affects various soil properties, and these effects are dependent on biochars derived from different feedstock materials and pyrolysis processes. The objective of this study was to investigate the effects of amendment of different biochars on soil physical and hydraulic properties. Materials and methods Biochars were produced with dairy manure and woodchip at temperatures of 300, 500, and 700 °C, respectively. Each biochar was mixed at 5 % ( w/w ) with a forest soil, and the mixture was incubated for 180 days, during which soil physical and hydraulic properties were measured. Results and discussion Results showed that the biochar addition significantly enhanced the formation of soil macroaggregates at the early incubation time. The biochar application significantly reduced soil bulk density, increased the amount of soil organic matter, and stimulated microbial activity at the early incubation stage. Saturated hydraulic conductivities of the soil with biochars, especially produced at high pyrolysis temperature, were higher than those without biochars on the sampling days. The treatments with woodchip biochars resulted in higher saturated hydraulic conductivities than the dairy manure biochar treatments. Biochar applications improved water retention capacity, with stronger effects by biochars produced at higher pyrolysis temperatures. At the same suction, the soil with woodchip biochars possessed higher water content than that with the dairy manure biochars. Conclusions Biochar addition significantly affected the soil physical and hydraulic properties. The effects were different with biochars derived from different feedstock materials and pyrolysis temperatures.
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abstractPurpose Biochar addition to soils potentially affects various soil properties, and these effects are dependent on biochars derived from different feedstock materials and pyrolysis processes. The objective of this study was to investigate the effects of amendment of different biochars on soil physical and hydraulic properties. Materials and methods Biochars were produced with dairy manure and woodchip at temperatures of 300, 500, and 700 °C, respectively. Each biochar was mixed at 5 % ( w/w ) with a forest soil, and the mixture was incubated for 180 days, during which soil physical and hydraulic properties were measured. Results and discussion Results showed that the biochar addition significantly enhanced the formation of soil macroaggregates at the early incubation time. The biochar application significantly reduced soil bulk density, increased the amount of soil organic matter, and stimulated microbial activity at the early incubation stage. Saturated hydraulic conductivities of the soil with biochars, especially produced at high pyrolysis temperature, were higher than those without biochars on the sampling days. The treatments with woodchip biochars resulted in higher saturated hydraulic conductivities than the dairy manure biochar treatments. Biochar applications improved water retention capacity, with stronger effects by biochars produced at higher pyrolysis temperatures. At the same suction, the soil with woodchip biochars possessed higher water content than that with the dairy manure biochars. Conclusions Biochar addition significantly affected the soil physical and hydraulic properties. The effects were different with biochars derived from different feedstock materials and pyrolysis temperatures.
copBerlin/Heidelberg
pubSpringer Berlin Heidelberg
doi10.1007/s11368-013-0738-7