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Extra info for Biochar for environmental management: science and technology
2007) ‘Long term effects of manure, charcoal and mineral fertilization on crop production and fertility on a highly weathered Central Amazonian upland soil’, Plant and Soil, vol 291, pp275–290 Stocking, M. A. (2003) ‘Tropical soils and food security:The next 50 years’, Science, vol 302, pp1356–1359 Tilman, D. (1998) ‘The greening of the green revolution’, Nature, vol 396, pp211–212 Trimble,W. H. (1851) ‘On charring wood’, Plough, the Loom and the Anvil, vol 3, pp513–516 Tryon, E. H. , Stenström,T.
However, biochar applications are, in contrast to manure or compost applications, not primarily a fertilizer, which has to be applied annually. Due to the longevity of biochar in soil, accumulation of heavy metals by repeated and regular applications over long periods of time that can occur for other soil additions may not occur with biochar. Biochar to produce energy Capturing energy during biochar production and, conversely, using the biochar generated during pyrolysis bioenergy production as a soil amendment is mutually beneficial for securing the production base for generating the biomass (Lehmann, 2007a), as well as for reducing overall emissions (see Chapter 18; Gaunt and Lehmann, 2008).
In spite of this, the term ‘charcoal’ is long established in popular language and the scientific literature, and will also be used in this book for charred organic matter as a source of energy. The establishment of the term ‘agrichar’ is closely related to that of biochar, with the desire to apply charred organic matter to soil, but is not used further in this book. ‘Biochar’ is preferred here as it includes the application of charred organic matter in settings outside of agriculture, such as promoting soil remediation or other environmental services.