2013
Bayabil HK, Lehmann J, Yitaferu B, Stoof C and Steenhuis TS 2013 Hydraulic properties of clay soils as affected by biochar and charcoal amendments. In: W Mekuria (ed) Rainwater management for resilient livelihoods in Ethiopia, Proceedings of the Nile Basin Development Challenge science meeting, Addis Ababa, 9–10 July 2013, pp98-104
2010
Cheng CC, Lehmann J, Kinyangi J, Solomon D, and Wu TL 2010 Long-term effects of black carbon on soil properties. In: Gilkes RJ, Prakongkep N (eds.) Proceedings of the 19th World Congress of Soil Science: Soil solutions for a changing world, Brisbane, Australia, 1-6 August 2010. Congress Symposium 4.1.2 Management and protection of receiving environments, pp 86-89
Hyland C, Hanley K, Enders A, Rajkovich S, and Lehmann J 2010 Nitrogen leaching in soil amended with biochars produced at low and high temperatures from various feedstocks. In: Gilkes RJ, Prakongkep N (eds.) Proceedings of the 19th World Congress of Soil Science: Soil solutions for a changing world, Brisbane, Australia, 1-6 August 2010. Congress Symposium 2: Soil ecosystem services, pp 38-41
2008
Lehmann J 2008 Biochar for CO2 bio-sequestration during pyrolysis bioenergy production. In: World Renewable Energy Congress X and Exhibition. 19-25 July 2008, Glasgow, Scotland, No. BM23 p. 18
2007
Joseph S D, Downie A, Munroe P, Crosky A and Lehmann J 2007 Biochar for Carbon Sequestration, Reduction of Greenhouse Gas Emissions and Enhancement of Soil Fertility; A Review of the Materials Science. Proceedings of the Australian Combustion Symposium, December 9-11, 2007, University of Sydney
2002
Cravo MS, Lehmann J and Vasconcelos de Macedo JL 2002 Soil phosphorus properties and management for perennial crops in the central Amazon. In Lieberei R, Bianchi H, Boehm V and Reisdorff C (eds.) Neotropical Ecosystems. Proceedings of the German-Brazilian Workshop, Hamburg, 2000. GKSS Geesthacht. pp. 477-484.
Dinkelmeyer H, Lehmann J, Kaiser K, Teizeira WG, Renck A and Zech W 2002 Fate if applied N fertilizer in mixed cropping systems in the central Amazon. In Lieberei R, Bianchi H, Boehm V and Reisdorff C (eds.) Neotropical Ecosystems. Proceedings of the German-Brazilian Workshop, Hamburg, 2000. GKSS Geesthacht. pp. 859-862.
Glaser B, Lehmann J, Steiner C, Nehls T, Yousaf M and Zech W 2002 Potential of pyrolized organic matter in soil amelioration. In Proceedings of the 12th International Soil Conservation Organization ISCO, 26-31 May 2002, Sustainable Utilization of Global Soil and Water Resources. Vol. III Technology and Method of Soil and Water Conservation. Tsinghua University Press. p. 421-427.
Günther D and Lehmann J 2002 Spatial variability of soil phosphorus pools in a mixed tree plantation. In Lieberei R, Bianchi H, Boehm V and Reisdorff C (eds.) Neotropical Ecosystems. Proceedings of the German-Brazilian Workshop, Hamburg, 2000. GKSS Geesthacht. pp. 855-858.
Lehmann J, da Silva Jr JP, Rondon M, Cravo MS, Greenwood J, Nehls T, Steiner C and Glaser B 2002 Slash-and-char – a feasible alternative for soil fertility management in the central Amazon? 17th World Congress of Soil Science, Bangkok, Thailand. CD–ROM Paper no. 449, p. 1-12.
Uguen K, Silva JP and Lehmann J 2002 Organic matter manegement in perennial crops in Amazonia. In Lieberei R, Bianchi H, Boehm V and Reisdorff C (eds.) Neotropical Ecosystems. Proceedings of the German-Brazilian Workshop, Hamburg, 2000. GKSS Geesthacht. pp. 471-472.
2001
Lehmann J 2001 Subsoil root activity in tree-based cropping systems. 6th Symposium of the International Society of Root Research, 11-15 Nov 2001, Nagoya, Japan. pp. 158-159.
2000
Campos CEB, Lehmann J, Macedo JLV and da Silva Jr JP 2000 Dinamica de fosforo no solo sob cupuacu (Theobroma grandiflorum) e urucum (Bixa orellana) em um sistema agroflorestal na Amazonia Central. In Proceedings of the 3rd National Brazilian Congress on Agroforestry, 21-25 Nov 2000, Manaus, Brazil, pp. 140-141.
Dinkelmeyer H, Lehmann J, Kaiser K, Teixeira WG, Renck A and Zech W 2000 Fate of applied N fertilizer in mixed cropping systems in the central Amazon. In Proceedings of the 3rd National Brazilian Congress on Agroforestry, 21-25 Nov 2000, Manaus, Brazil, pp. 196-198.
Lehmann J, da Silva Jr. JP, Trujillo L and Uguen K 2000 Legume cover crops and nutrient cycling in tropical fruit tree production. Acta Horticulturae 531: 65-72.
Mota MSS, Lehmann J, Schroth G, and da Silva Jr JP 2000 Dinamica de nutrientes num latossolo amarelo, em um sistema agroflorestal na Amazonia Central. In Proceedings of the 3rd National Brazilian Congress on Agroforestry, 21-25 Nov 2000, Manaus, Brazil, pp. 142-143.
1999
Lehmann J and Muraoka T 1999 Tracer applications for assessing nutrient pathways in multi-strata agroforestry systems. In F Jimenez and J Beer (eds.) Multi-strata agroforestry systems with perennial crops. CATIE, Turrialba, Costa Rica. pp. 175-179.
Lehmann J and Zech W 1999 Possibilities and limitations of yield increase in tropical alley-cropping systems. Plant Research and Development 50: 42-54.
Lehmann J, Günther D, da Mota S, Kaiser K, Treter U and Zech W 1999 Single-tree effects on soil P pools in a multi strata agroforestry system. In F Jimenez and J Beer (eds.) Multi-strata agroforestry systems with perennial crops. CATIE, Turrialba, Costa Rica. pp. 120-123.
Zech W, Lehmann J, Amelung W and Schroth G 1999 Improvement of the soil by woody legumes in tropical agroforestry systems. Natural Resources and Development 51: 98- 109.
1998
Lehmann J 1998 Tracer applications for the assessment of nutrient pathways in agroforestry systems. In Proceedings of the II Brazilian Congress on Agroforestry, Nov. 24-27, Embrapa-CPATU, Belem, Brazil. pp. 42-45.
Lehmann J and Zech W 1998 Nachhaltige Landnutzung in Afrika: Prozeßforschung im System Boden-Pflanze. In T Förster (ed.) Afrikaforschung in Bayreuth. IWALEWA House Bayreuth, University of Bayreuth. pp. 137-144.
Lehmann J, Cravo M and Zech W 1998 Determination of ecologically relevant pools for soil organic matter stability in terra firme oxisols. In: Lieberei R, Bianchi H, Voß K (eds), Proceedings of the Third SHIFT-Workshop, Manaus 1998. GKSS, Geesthacht, pp 441-452.
Lehmann J, Küper U, Droppelmann K, Berliner P, Nyabundi O and Zech W 1998 Optimizing biomass production in a runoff agroforestry system in Northern Kenya. In H Ellenberg (ed.) German Society of Tropical Ecology, Proceedings of the 8th Annual Congress, Hamburg. pp. 59-63.
Lehmann J, Schroth G, Teixeira W, Zech W and Cravo MS 1998 Nutrient and water dynamics in a multi-strata agroforestry system. In Proceedings of the II Brazilian Congress on Agroforestry, Nov. 24-27, Embrapa-CPATU, Belem, Brazil. pp. 38-41.
Mota S da, Lehmann J, and Schroth G 1998 Dinamica da acidez num Latossolo Amarelo em diferentes sistemas de uso da terra na Amazonia. In Proceedings of the II Brazilian Congress on Agroforestry, Nov. 24-27, Embrapa-CPATU, Belem, Brazil. pp. 74-76.
Zech W Schroth G, Cravo M, Teixeira W, Kaiser K and Lehmann J 1998 Water and nutrient fluxes as indicators fo the sustainability of different land-use systems on the terra firme near Manaus – a project overview. In: Lieberei R, Bianchi H, Voß K (eds), Proceedings of the Third SHIFT-Workshop, Manaus 1998. GKSS, Geesthacht, pp 435-550.
1997
Lehmann J and Zech W 1997 Grenzen und Möglichkeiten der Ertragssteigerung in tropischen alley-cropping Systemen. In JCG Ottow and J Sauerborn (eds.) Leguminosen zur Verbesserung und nachhaltigen Sicherung der Agrarproduktion. Gießener Beiträge zur Entwicklungsforschung Reihe I, Band 24. pp 165-176.
Lehmann J, Wulf S and Zech W 1997 Can trees recover nutrients under high leaching conditions? In Agroforestry for Sustainable Land-use. International Conference Montpellier 23-29 June 1997 AFC CIRAD-Forêt, Montpellier, France. pp. 155-158.
Zech W, Lehmann J, Amelung W and Schroth G 1997 Bodenverbesserung durch holzige Leguminosen in tropischen Agroforstsystemen. In JCG Ottow and J Sauerborn (eds.) Leguminosen zur Verbesserung und nachhaltigen Sicherung der Agrarproduktion. Gießener Beiträge zur Entwicklungsforschung Reihe I, Band 24. pp. 191-202.
1993
Lehmann J und Schroth G 1993 Stickstofffreisetzung und Bindung von Stickstoff in organo-mineralischen Komplexen aus Wurzelstreu und Gründüngung in einem Alley Cropping System mit verschiedenen Leguminosen in Zentraltogo: Einfluß der anfänglichen chemischen Zusammensetzung. Mitteilungen der Deutschen Bodenkundlichen Gesellschaft 72: 755-758.