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Building resilience against drought and soil erosion: impact of field water conservation in the drought prone Vertisol areas of northern Ethiopia

Tesfay Araya, Wim Cornelis UGent, Jan Nyssen UGent, B Govaerts, D Raes, KD Sayre and Jozef Deckers (2012) Agro Environ 2012.
abstract
Field water conservation practices are a way forward to build resilience against drought through increasing productive green water and crop yield, while reducing runoff (blue water) and soil erosion. A long-term tillage experiment was carried out (2005 to 2011) on a Vertisol to quantify the impact of field water conservation practices on soil moisture, runoff, soil loss and crop yield in a rainfed field in northern Ethiopia. The experimental layout was a randomized complete block design with three replications on permanent plots of 5 m by 19 m. The tillage treatments were (i) derdero+ (DER+) with a furrow and permanent raised bed planting system, 30% standing crop residue retention and no-tillage on top of the bed, (ii) terwah+ planting system (TER+) with ploughing once at sowing, 30% standing crop residue retention and fresh broad beds, and (iii) conventional tillage (CT) with a minimum of three tillage operations and removal of crop residues. The crops grown in rotation were wheat, barley, teff and grass pea. The field conservation practices thus combined indigenous conservation practices (derdero and terwah) with the concepts of conservation agriculture (hence the ‘+’). Data on soil loss, runoff, soil moisture, crop yield and NDVI were collected. Significantly different (p<0.05) mean soil losses of 4.4, 12.5 and 18 t/ha/y were recorded for DER+, TER+ and CT, respectively. Similarly, the mean runoff was 458, 706 and 925 m3/ha/y from treatments with DER+, TER+ and CT, respectively. The average grain yield of wheat over three years was 2.46, 2.02 and 1.61 t/ha for DER+, TER+ and CT, respectively. NDVI records in wheat and grass pea were higher in DER+.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
in
Agro Environ 2012
editor
Jacquelijn Ringersma and Leo Stroosnijder
pages
5 pages
conference name
8th International Symposium Agro Environ (Agro Environ 2012)
conference location
Wageningen, The Netherlands
conference start
2012-05-01
conference end
2012-05-04
language
English
UGent publication?
yes
classification
C1
copyright statement
I have retained and own the full copyright for this publication
id
2111951
handle
http://hdl.handle.net/1854/LU-2111951
alternative location
http://library.wur.nl/ojs/index.php/AE2012/article/download/12445/12616
date created
2012-05-23 16:16:34
date last changed
2012-05-24 10:36:28
@inproceedings{2111951,
  abstract     = {Field water conservation practices are a way forward to build resilience against drought through increasing productive green water and crop yield, while reducing runoff (blue water) and soil erosion. A long-term tillage experiment was carried out (2005 to 2011) on a Vertisol to quantify the impact of field water conservation practices on soil moisture, runoff, soil loss and crop yield in a rainfed field in northern Ethiopia. The experimental layout was a randomized complete block design with three replications on permanent plots of 5 m by 19 m. The tillage treatments were (i) derdero+ (DER+) with a furrow and permanent raised bed planting system, 30\% standing crop residue retention and no-tillage on top of the bed, (ii) terwah+ planting system (TER+) with ploughing once at sowing, 30\% standing crop residue retention and fresh broad beds, and (iii) conventional tillage (CT) with a minimum of three tillage operations and removal of crop residues. The crops grown in rotation were wheat, barley, teff and grass pea. The field conservation practices thus combined indigenous conservation practices (derdero and terwah) with the concepts of conservation agriculture (hence the {\textquoteleft}+{\textquoteright}). Data on soil loss, runoff, soil moisture, crop yield and NDVI were collected. Significantly different (p{\textlangle}0.05) mean soil losses of 4.4, 12.5 and 18 t/ha/y were recorded for DER+, TER+ and CT, respectively. Similarly, the mean runoff was 458, 706 and 925 m3/ha/y from treatments with DER+, TER+ and CT, respectively. The average grain yield of wheat over three years was 2.46, 2.02 and 1.61 t/ha for DER+, TER+ and CT, respectively. NDVI records in wheat and grass pea were higher in DER+.},
  author       = {Araya, Tesfay  and Cornelis, Wim and Nyssen, Jan and Govaerts, B and Raes, D and Sayre, KD and Deckers, Jozef},
  booktitle    = {Agro Environ 2012},
  editor       = {Ringersma, Jacquelijn and Stroosnijder, Leo},
  language     = {eng},
  location     = {Wageningen, The Netherlands},
  pages        = {5},
  title        = {Building resilience against drought and soil erosion: impact of field water conservation in the drought prone Vertisol areas of northern Ethiopia},
  url          = {http://library.wur.nl/ojs/index.php/AE2012/article/download/12445/12616},
  year         = {2012},
}

Chicago
Araya, Tesfay , Wim Cornelis, Jan Nyssen, B Govaerts, D Raes, KD Sayre, and Jozef Deckers. 2012. “Building Resilience Against Drought and Soil Erosion: Impact of Field Water Conservation in the Drought Prone Vertisol Areas of Northern Ethiopia.” In Agro Environ 2012, ed. Jacquelijn Ringersma and Leo Stroosnijder.
APA
Araya, Tesfay , Cornelis, W., Nyssen, J., Govaerts, B., Raes, D., Sayre, K., & Deckers, J. (2012). Building resilience against drought and soil erosion: impact of field water conservation in the drought prone Vertisol areas of northern Ethiopia. In J. Ringersma & L. Stroosnijder (Eds.), Agro Environ 2012. Presented at the 8th International Symposium Agro Environ (Agro Environ 2012).
Vancouver
1.
Araya T, Cornelis W, Nyssen J, Govaerts B, Raes D, Sayre K, et al. Building resilience against drought and soil erosion: impact of field water conservation in the drought prone Vertisol areas of northern Ethiopia. In: Ringersma J, Stroosnijder L, editors. Agro Environ 2012. 2012.
MLA
Araya, Tesfay , Wim Cornelis, Jan Nyssen, et al. “Building Resilience Against Drought and Soil Erosion: Impact of Field Water Conservation in the Drought Prone Vertisol Areas of Northern Ethiopia.” Agro Environ 2012. Ed. Jacquelijn Ringersma & Leo Stroosnijder. 2012. Print.