Quantitative analysis of biochar in field soil

Abstract Biochar is used with increasing frequency as a soil amendment because of its potentially beneficial effects on soil carbon sequestration, crop yield, nutrient leaching and greenhouse gas emissions. Simple methods for the analysis of biochar in soil, however, are currently unavailable. Therefore, we have adapted the “loss on ignition” method for this purpose. The technique requires knowledge of the proportions of both biochar and biochar-free soil that are lost on ignition. One can use values determined prior to the amendment of the soil with biochar, assuming that the values do not change after biochar is incorporated in the soil. We tested these assumptions. Over the course of 15 months, the assumptions proved to be valid under our test conditions. The technique accurately determined a wide range of biochar concentrations in field soil.

[1]  David A. Laird,et al.  The Charcoal Vision: A Win–Win–Win Scenario for Simultaneously Producing Bioenergy, Permanently Sequestering Carbon, while Improving Soil and Water Quality , 2008 .

[2]  R. Norby,et al.  Elevated atmospheric carbon dioxide increases soil carbon , 2005 .

[3]  Julie D. Jastrow,et al.  Soil aggregate formation and the accrual of particulate and mineral-associated organic matter , 1996 .

[4]  M. Engelhard,et al.  Long-term black carbon dynamics in cultivated soil , 2008 .

[5]  S. Wright,et al.  A survey of soils for aggregate stability and glomalin, a glycoprotein produced by hyphae of arbuscular mycorrhizal fungi , 2004, Plant and Soil.

[6]  Mark H. Engelhard,et al.  Natural oxidation of black carbon in soils: Changes in molecular form and surface charge along a climosequence , 2008 .

[7]  L. Zwieten,et al.  Agronomic values of greenwaste biochar as a soil amendment , 2007 .

[8]  Christine L. Goodale,et al.  Fate of soil‐applied black carbon: downward migration, leaching and soil respiration , 2010 .

[9]  J. Tisdall,et al.  Aggregation of soil by fungal hyphae , 1997 .

[10]  R. Koide,et al.  The effect of dandelion or a cover crop on mycorrhiza inoculum potential, soil aggregation and yield of maize , 2000 .

[11]  D. Coleman,et al.  Let the soil work for us , 1988 .

[12]  S. Wright,et al.  EXTRACTION OF AN ABUNDANT AND UNUSUAL PROTEIN FROM SOIL AND COMPARISON WITH HYPHAL PROTEIN OF ARBUSCULAR MYCORRHIZAL FUNGI , 1996 .

[13]  M. Torn,et al.  Large contribution of arbuscular mycorrhizal fungi to soil carbon pools in tropical forest soils , 2001, Plant and Soil.

[14]  J. Tisdall,et al.  Stabilization of Soil Aggregates by the Root Systems of Ryegrass , 1979 .

[15]  J. Lehmann,et al.  Ameliorating physical and chemical properties of highly weathered soils in the tropics with charcoal – a review , 2002, Biology and Fertility of Soils.

[16]  Johannes Lehmann,et al.  Biological nitrogen fixation by common beans (Phaseolus vulgaris L.) increases with bio-char additions , 2007, Biology and Fertility of Soils.

[17]  E. Mills,et al.  A comparison of methods of determining organic carbon in marine sediments, with suggestions for a standard method , 1978, Hydrobiologia.

[18]  D. Reicosky,et al.  Impacts of woodchip biochar additions on greenhouse gas production and sorption/degradation of two herbicides in a Minnesota soil. , 2009, Chemosphere.

[19]  R. Miller,et al.  Soil aggregate stabilization and carbon sequestration: Feedbacks through organomineral associations , 1996 .

[20]  K. Treseder,et al.  Mycorrhizal fungi have a potential role in soil carbon storage under elevated CO2 and nitrogen deposition , 2000 .

[21]  J. Lehmann,et al.  Biochar for Environmental Management: Science and Technology , 2009 .

[22]  T. Ishii,et al.  Ecological Aspects of Vesicular-Arbuscular Mycorrhizal Fungi in Satsuma Mandarin Grown in Plastic Green Houses and Fields , 1999 .

[23]  Winfried E. H. Blum,et al.  Long term effects of manure, charcoal and mineral fertilization on crop production and fertility on a highly weathered Central Amazonian upland soil , 2007, Plant and Soil.

[24]  M. Saito.  Charcoal as a micro-habitat for VA mycorrhizal fungi, and its practical implication. , 1990 .

[25]  Michael W. I. Schmidt,et al.  Changes of Biochar in Soil , 2012 .

[26]  Matthias C. Rillig,et al.  Mycorrhizal responses to biochar in soil – concepts and mechanisms , 2007, Plant and Soil.

[27]  M. Schmidt,et al.  Black carbon in soils and sediments: Analysis, distribution, implications, and current challenges , 2000 .

[28]  M. Ogawa,et al.  Effects of the application of charred bark of Acacia mangium on the yield of maize, cowpea and peanut, and soil chemical properties in South Sumatra, Indonesia , 2006 .

[29]  P. Adler,et al.  Pyrolysis of energy crops including alfalfa stems, reed canarygrass, and eastern gamagrass ☆ , 2006 .

[30]  André F. Lotter,et al.  Loss on ignition as a method for estimating organic and carbonate content in sediments: reproducibility and comparability of results , 2001 .

[31]  Rattan Lal,et al.  Soil processes and the carbon cycle. , 1998 .

[32]  Winfried E. H. Blum,et al.  Nitrogen retention and plant uptake on a highly weathered central Amazonian Ferralsol amended with compost and charcoal , 2008 .

[33]  D. F. Ball,et al.  LOSS-ON-IGNITION AS AN ESTIMATE OF ORGANIC MATTER AND ORGANIC CARBON IN NON-CALCAREOUS SOILS , 1964 .

[34]  Gary A. Peterson,et al.  Reduced tillage and increasing cropping intensity in the Great Plains conserves soil C , 1998 .

[35]  A. Cowie,et al.  Influence of biochars on nitrous oxide emission and nitrogen leaching from two contrasting soils. , 2010, Journal of environmental quality.

[36]  S. Riha,et al.  Maize yield and nutrition during 4 years after biochar application to a Colombian savanna oxisol , 2010, Plant and Soil.

[37]  J. Satrio,et al.  Characterization of biochar from fast pyrolysis and gasification systems , 2009 .

[38]  Ö. Gustafsson,et al.  Quantification of sedimentary black carbon using the chemothermal oxidation method: an evaluation of ex situ pretreatments and standard additions approaches , 2004 .

[39]  R. Koide,et al.  Winter wheat cover cropping, VA mycorrhizal fungi and maize growth and yield , 1998 .

[40]  D. Laird,et al.  Stability of Biochar in the Soil , 2009 .

[41]  David A. Wardle,et al.  Key ecological function of charcoal from wildfire in the Boreal forest , 1996 .

[42]  S. Gianinazzi,et al.  Impact of Arbuscular Mycorrhizas on Sustainable Agriculture and Natural Ecosystems , 1994, ALS Advances in Life Sciences.

[43]  T. Ezawa,et al.  Enhancement of the effectiveness of indigenous arbuscular mycorrhizal fungi by inorganic soil amendments , 2002 .

[44]  Y. Tamai,et al.  Buried charcoal layer and ectomycorrhizae cooperatively promote the growth of Larix gmelinii seedlings , 2010, Plant and Soil.