Reassessment of tillage erosion rates by manual tillage on steep slopes in northern Thailand

Turkelboom, Francis; Poesen, Jean; Ohler, I; Ongprasert, Somchai

doi:10.1016/s0167-1987(99)00041-0

Cited by 51 publications

(10 citation statements)

References 12 publications

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“…Similar absence of vertical soil fertility gradient in homogenised deposits has been reported for various regions in the world (Dregne, 1995;Lal, 2001). Our findings are not necessarily in contradiction with the existence of lateral fertility gradients elsewhere (Turkelboom et al, 1997(Turkelboom et al, , 1999Herweg and Ludi, 1999;Dercon et al, 2003;Dabney et al, 1999), since these involved soil types with clearly differentiated horizons. Furthermore, this result would also indicate that on deep homogenous soils without vertical fertility gradients, soil erosion may lead in some cases to high nutrient losses (Nigussie et al, 2006), but not to decreased soil fertility.…”

Section: The Issue Of Soil Fertility Gradients Induced By Stone Bund supporting

confidence: 90%

“…Since nearly all farmland is terraced in the study area, the plot's centre has been used as a conservative reference for the unterraced situation (Dercon et al, 2003;Turkelboom et al, 1999). The increment in crop yield was then expressed in monetary terms and compared to costs of stone bund building.…”

Section: Impacts Of Stone Bunds On Crop Yield and Economic Valuationmentioning

confidence: 99%

“…A dramatic drop in crop yield may then result from such fertility gradients and may therefore pose a limitation to the long-term crop productivity of these systems. This problem remains a dominant issue in the debate about the sustainability of slow forming terraces (Turkelboom et al, 1999;Herweg and Ludi, 1999;Dabney et al, 1999;Dercon et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

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Interdisciplinary on-site evaluation of stone bunds to control soil erosion on cropland in Northern Ethiopia

Nyssen

Poesen

Gebremichael

et al. 2007

Soil and Tillage Research

167

146

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Since two decades, stone bunds have been installed in large areas of the Tigray Highlands, Northern Ethiopia, to control soil erosion by water. Field studies were conducted to quantify the effectiveness, efficiency, side effects and acceptance of stone bunds. Based on measurements on 202 field parcels, average sediment accumulation rate behind 3-21 year old stone bunds is 58 t ha À1 year À1 .The Universal Soil Loss Equation's P-factor for stone bunds was estimated at 0.32. Sediment accumulation rates increase with slope gradient and bund spacing, but decrease with bund age. Truncation of the soil profile at the lower side of the bund does not lead to an important soil fertility decrease, mainly because the dominant soil types in the study area (Regosols, Vertisols and Vertic Cambisols) do not have pronounced vertical fertility gradients. Excessive removal of small rock fragments from the soil surface during stone bund building may lead to a three-fold increase in sheet and rill erosion rates. Negative effects of runoff concentration or crop burial by sediment deposition due to bunds were only found over 60 m along 4 km of studied bunds. As the rodent problem is widespread and generally not specific to stone bunds, it calls for distinct interventions. On plots with stone bunds of different ages (between 3 and 21 years old), there is an average increase in grain yield of 53% in the lower part of the plot, as compared to the central and upper parts. Taking into account the space occupied by the bunds, stone bunds led in 2002 to a mean crop yield increase from 0.58 to 0.65 t ha À1 . The cost of stone bund building averages s13.6 ha À1 year À1

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Section: The Issue Of Soil Fertility Gradients Induced By Stone Bund supporting

confidence: 90%

Section: Impacts Of Stone Bunds On Crop Yield and Economic Valuationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Interdisciplinary on-site evaluation of stone bunds to control soil erosion on cropland in Northern Ethiopia

Nyssen

Poesen

Gebremichael

et al. 2007

Soil and Tillage Research

167

146

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“…This preparation may have eased effects of cross tillage, which separated larger soil clods below the root zone. Post tillage management could include (i) repeated cross tillage until soil clods were destroyed, (ii) destruction of soil clods by hoeing (e.g., Turkelboom et al 1999;Zhang et al, 2004;Kimaro et al, 2005;Dupin et al, 2009), (iii) ploughing and harrowing (Wildemeersch et al, 2014) to prepare the seedbed for sowing. Complementary, seeding under clods (similar to recent conservation practices) may be preferred.…”

Section: Ard Tillage In Seedbed Preparation In a New Field Setup In Gmentioning

confidence: 99%

An interdisciplinary tillage erosion experiment: establishing a field in grassland with reconstructed ard plough of the Bronze Age-Iron Age

Pavelka

Smetanová²,

Rejman

et al. 2017

CIG

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ABSTRACT. Despite recognising the role of tillage erosion in landforms evolution, little research has documented its effects in prehistoric times. Herein, an interdisciplinary archaeological-geomorphological experiment with reconstructed tillage tools and management was conducted in order to measure tillage erosion when a new field in grasslands was established in the BronzeAge-Iron Age. Three wooden ards were reconstructed based on archaeological findings. They were tested in a cross-tillage experiment, consisting of a tillage pass perpendicular to the primary slope (6.5-9.7%)

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“…Intentionally, however, they will leave a 2 m wide grass strip uncultivated at the parcel's lower side as physical evidence of the parcel's boundary as well as for sake of soil erosion control; within a few years, a lynchet will develop (Nyssen et al, 2010). These structures are not only partial barriers for sediment transport by water, but also a total barrier for downslope soil transport created by tillage erosion (Govers et al, 1999;Turkelboom et al, 1999) …”

Section: How Do Lynchets In North Ethiopia Develop?mentioning

confidence: 99%

Lynchets in eastern Belgium — a geomorphic feature resulting from non-mechanised crop farming

Nyssen

Debever

Poesen

et al. 2014

CATENA

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This paper investigates soil stratigraphy of lynchets in sloping lands in eastern Belgium, and rates of their development by comparison to tillage translocation by non-mechanised agriculture. In Belgium, detailed topographical surveys and augerings were carried out at three sites that were under cropland till 1900-1950. Rates and diffusion constants of current non-mechanised tillage erosion were monitored in Ethiopia using tracers, and by precise Key words: Plough; Cultivation terrace; Ethiopia; Lynchet; Tillage erosion Nyssen, J., Debever, M., Poesen, J., Deckers, J., 2014. Lynchets in eastern Belgium -a geomorphic feature resulting from non-mechanised crop farming. Catena, 121: 164-175.

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Reassessment of tillage erosion rates by manual tillage on steep slopes in northern Thailand

Cited by 51 publications

References 12 publications

Interdisciplinary on-site evaluation of stone bunds to control soil erosion on cropland in Northern Ethiopia

Interdisciplinary on-site evaluation of stone bunds to control soil erosion on cropland in Northern Ethiopia

An interdisciplinary tillage erosion experiment: establishing a field in grassland with reconstructed ard plough of the Bronze Age-Iron Age

Lynchets in eastern Belgium — a geomorphic feature resulting from non-mechanised crop farming

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