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Hydraulic properties of clay soils as affected by biochar and charcoal amendments

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Title Hydraulic properties of clay soils as affected by biochar and charcoal amendments
 
Creator Bayabil, H.K.
Lehmann, J.C.
Yitaferu, B.
Stoof, C.
Steenhuis, Tammo S.
 
Subject soil
 
Description Understanding soil hydraulic properties is crucial for planning effective soil and water management practices. A study was conducted to evaluate the effects of different biochar and charcoal treatments on soil-hydraulic properties of agricultural soils. Biochar and charcoal treatments were applied on 54, undisturbed soil-columns, extracted from three-elevation ranges, with replications along three transects. Daily weight losses of freely draining soil-columns and soil moisture contents, at five tensions, were measured. In addition, field infiltration tests and soil analyses for particle size distribution, bulk-density and organic carbon content were conducted. Moreover, five year event precipitation data, from the watershed, was analysed and exceedance probability of rainfall intensity was computed. Results show treatments reduced soil moisture contents, for most of the cases. However, treatment effects were significant only at lower tensions (10 and 30 kPa) and within two days after saturation (p
 
Date 2013-11-01
2013-12-14T14:52:55Z
2013-12-14T14:52:55Z
 
Type Book Chapter
 
Identifier Bayabil, H.K., Lehmann, J.C., Yitaferu, B., Stoof, C. and Steenhuis, T.S. 2013. Hydraulic properties of clay soils as affected by biochar and charcoal amendments. IN: Wolde, M. (ed). 2013, Rainwater management for resilient livelihoods in Ethiopia: Proceedings of the Nile Basin Development Challenge Science Meeting, Addis Ababa, 9–10 July 2013. NBDC Technical Report 5. Nairobi, Kenya: ILRI.
https://hdl.handle.net/10568/34249
 
Language en
 
Relation https://hdl.handle.net/10568/33929
NBDC Technical Report
 
Rights Open Access
 
Format application/pdf
 
Publisher International Livestock Research Institute