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Ameliorating physical and chemical properties of highly weathered soils in the tropics with charcoal: A review

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dc.contributor.authorGlaser, B.en
dc.contributor.authorLehmann, Johannesen
dc.contributor.authorZech, W.en
dc.contributor.departmentSustainable Agriculture and Natural Resource Management (SANREM) Knowledgebaseen
dc.coverage.spatialAmazonen
dc.date.accessioned2016-04-19T18:07:36Zen
dc.date.available2016-04-19T18:07:36Zen
dc.date.issued2002en
dc.descriptionMetadata only recorden
dc.description.abstractRapid turnover of organic matter leads to a low efficiency of organic fertilizers applied to increase and sequester C in soils of the humid tropics. Charcoal was reported to be responsible for high soil organic matter contents and soil fertility of anthropogenic soils (Terra Preta) found in central Amazonia. Therefore, we reviewed the available information about the physical and chemical properties of charcoal as affected by different combustion procedures, and the effects of its application in agricultural fields on nutrient retention and crop production. Higher nutrient retention and nutrient availability were found after charcoal additions to soil, related to higher exchange capacity, surface area and direct nutrient additions. Higher charring temperatures generally improved exchange properties and surface area of the charcoal. Additionally, charcoal is relatively recalcitrant and can therefore be used as a long-term sink for atmospheric CO2. Several aspects of a charcoal management system remain unclear, such as the role of microorganisms in oxidizing charcoal surfaces and releasing nutrients and the possibilities to improve charcoal properties during production under field conditions. Several research needs were identified, such as field testing of charcoal production in tropical agroecosystems, the investigation of surface properties of the carbonized materials in the soil environment, and the evaluation of the agronomic and economic effectiveness of soil management with charcoal.en
dc.format.mimetypeapplication/pdfen
dc.identifier276en
dc.identifier.citationBiol Fertil Soils 35: 219-230en
dc.identifier.issn0178-2762en
dc.identifier.urihttp://hdl.handle.net/10919/65342en
dc.language.isoen_USen
dc.publisherBiology and Fertility of Soilsen
dc.rightsIn Copyrighten
dc.rights.holderCopyright Springer-Verlag 2002en
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectCarbon sequestrationen
dc.subjectSoil managementen
dc.subjectSoil fertilityen
dc.subjectNutrient leachingen
dc.subjectCharcoalen
dc.subjectFarm/Enterprise Scale Field Scale Watersheden
dc.titleAmeliorating physical and chemical properties of highly weathered soils in the tropics with charcoal: A reviewen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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