Wind erosion control using crop residue II. Effects on millet establishment and yields

Michels, Karlheinz; Sivakumar, M. V. K.; Allison, Bruce E.

doi:10.1016/0378-4290(94)00095-t

Cited by 36 publications

(21 citation statements)

References 13 publications

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“…And for pattern P.D, while in run 2 the pattern and % cover were sufficient to reach an equilibrium between erosion and deposition, in run 3 (higher average wind speed) more erosion occurred. Several previous studies have indicated that limited surface cover (5-7.5%) combined with a certain minimum wind speed can increase windblown mass fluxes (Raupach, 1990;Raupach, 1992;Raupach et al, 1993;Michels et al, 1995;Sterk et al, 1998;Maurer et al, 2009) due to the increased turbulence caused by the limited vegetation cover. The effect of the wind speed on the increased mass flux is illustrated in the difference between runs 2 and 3 for pattern P.D.…”

Section: Sediment Transport Between Bare and Vegetated Land Unitsmentioning

confidence: 99%

The effect of vegetation patterns on wind-blown mass transport at the regional scale: A wind tunnel experiment

et al. 2012

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Wind erosion is a global environmental problem. Re-vegetating land is a commonly used method to reduce the negative effects of wind erosion. However, there is limited knowledge on the effect of vegetation pattern on wind-blown mass transport. The objective of this study was to investigate the effect of vegetation pattern on this phenomenon within a land unit and at the border between land units. Wind tunnel experiments were conducted with artificial shrubs representing Atriplex halimus. Wind runs at a speed of 11 m s -1 were conducted and sand translocation was measured after 200-230 s using a graph paper prepared for this purpose. This research showed that: 1) the transport within a land unit is affected by the neighboring land units and by the vegetation pattern within both the unit itself and the neighboring land units; 2) re-vegetation plans for degraded land can take into account the 'streets' effect (zones of erosion areas similar to streets); 3) the effect of neighboring land units includes sheltering effect and the regulation of sediment passing from one land unit to the neighboring land units and 4) in addition to investigation of the general effect of vegetation pattern on erosion and deposition within the region, it is important to investigate the redistribution of sediment at smaller scales depending on the scope of the project.

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Section: Sediment Transport Between Bare and Vegetated Land Unitsmentioning

confidence: 99%

The effect of vegetation patterns on wind-blown mass transport at the regional scale: A wind tunnel experiment

et al. 2012

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“…It could cause much damage such as crop decrease, soil fertility reduction, dust storms and land degradation [3][4][5]. Many methods, including planting trees, erecting hedges and mulching crop residue, have been carried out to reduce the damage [6,7]. However, these methods have some problems such as being time and labor consuming, with low effectiveness and high cost.…”

Section: Introductionmentioning

confidence: 98%

Synthesis and characterization of a novel soil stabilizer based on biodegradable poly(aspartic acid) hydrogel

Yang

Wang

Tan

2008

Korean J. Chem. Eng.

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A novel soil stabilizer based on poly-amino acid -polyaspartic acid (PASP) and its copolymer which modified by xanthan gum (XG) was studied to increase soil particle compressive strength and resistance to wind erosion. Due to its unique property, the stabilizer aggregated individual soil particles and formed crust. The sample compressive strength increased from 0.175 to 0.612 MPa and the wind erosion modulus reduced from 22.43 to 10.56 g·m −2 ·min −1 after the 1% PASP hydrogel was applied by 1.67 Lm −2 (1 cm of crust). The soil water content was higher than the control due to the polymer's excellent water-retaining property. The polymer had no negative influence on seed germination and growth. The biodegradability experiment showed that PASP was easy to biodegrade and therefore it was safe to apply in the field.

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“…The 40 mainplot treatments attributed to plots of 10 by 10 m the pipette method (Gee and Bauder, 1986).…”

Section: Methodsmentioning

confidence: 99%

Mechanisms of Residue Mulch‐Induced Cereal Growth Increases in West Africa

Buerkert

Bationo²,

Dossa

2000

Soil Science Soc of Amer J

125

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The use of crop residues (CR) has been widely reported as a means of increasing crop yields across West Africa. However, little has been done to compare the magnitude and mechanisms of CR effects systematically in the different agro‐ecological zones of the region. To this end, a series of field trials with millet (Pennisetum glaucum L.), sorghum [Sorghum bicolor (L.) Moench], and maize (Zea mays L.) was conducted over a 4‐yr period in the Sahelian, Sudanian, and Guinean zones of West Africa. Soils ranged in pH from 4.1 to 5.4 along a rainfall gradient from 510 to 1300 mm. Treatments in the factorial experiments were three CR rates (0, 500, and 2000 kg ha−1) and several levels of phosphorus and nitrogen. The results showed CR‐induced total dry matter (TDM) increases in cereals up to 73% for the Sahel compared with a maximum of 16% in the wetter Sudanian and Guinean zones. Residue effects on weakly buffered Sahelian soils were due to improved P availability and to a protection of seedlings against wind erosion. Additional effects of CR mulching on topsoil properties in the Sahel were a decrease in peak temperatures by 4 °C and increased water availability. These mulch effects on soil chemical and physical properties strongly decreased from North to South. Likely explanations for this decrease are the decline of dust deposition and wind erosion hazards, the higher soil clay content, lower air temperature, and a faster decomposition rate of mulch material with increasing rainfall from the Sahel to the Sudanian and Guinean zones.

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Wind erosion control using crop residue II. Effects on millet establishment and yields

Cited by 36 publications

References 13 publications

The effect of vegetation patterns on wind-blown mass transport at the regional scale: A wind tunnel experiment

The effect of vegetation patterns on wind-blown mass transport at the regional scale: A wind tunnel experiment

Synthesis and characterization of a novel soil stabilizer based on biodegradable poly(aspartic acid) hydrogel

Mechanisms of Residue Mulch‐Induced Cereal Growth Increases in West Africa

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