No-tillage controls on runoff: A meta-analysis

Sun, Yanni; Zeng, Yongjun; Shi, Qinghua; Pan, Xiaohua; Huang, Shan

doi:10.1016/j.still.2015.04.007

Cited by 71 publications

(44 citation statements)

References 38 publications

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“…Several studies have shown that no-till significantly reduces runoff, especially under high rainfall intensity (Sun et al, 2015); reduces soil erosion, due to the undisturbed soil surface and the presence of crop residues on the soil surface (Merten et al, 2015;Vogel et al, 2016); and may reduce subsoil compaction compared with conventional tillage, which induces high soil stresses on the subsoil during in-furrow ploughing (Chamen et al, 2003). No-till may be an advantage under dry conditions, as it has been shown to improve conservation of soil water compared with conventional tillage (De Gryze et al, 2008;Jin et al, 2009;Martínez et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Two decades of no-till in the Oberacker long-term field experiment: Part I. Crop yield, soil organic carbon and nutrient distribution in the soil profile

Martínez

Chervet²,

Weisskopf

et al. 2016

Soil and Tillage Research

101

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Section: Introductionmentioning

confidence: 99%

Two decades of no-till in the Oberacker long-term field experiment: Part I. Crop yield, soil organic carbon and nutrient distribution in the soil profile

Martínez

Chervet²,

Weisskopf

et al. 2016

Soil and Tillage Research

101

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“…This indicated that reducing runoff by changing the microtopography is more effective than improving soil properties. No‐tillage reduces runoff by 16.73% compared with conventional tillage, which is smaller than the results (27.2%) of a global meta‐analysis conducted by Sun et al (). This is because the global meta‐analysis of no‐tillage did not consider the function of no‐tillage with mulch separately, whereas we distinguish the benefits of no‐tillage and no‐tillage with mulch in reducing runoff.…”

Section: Discussionmentioning

confidence: 99%

Effects of minimum soil disturbance practices on controlling water erosion in China's slope farmland: A meta‐analysis

Jia

Zhao

et al. 2019

Land Degrad Dev

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Slope farmlands are commonly found in China, and soil loss from slope farmland is the main source of river sediment. Minimum soil disturbance practices were considered effectively in controlling water erosion, especially on slope farmlands. Although their beneficial effects have been universally recognized, further research is still needed to quantify the extent of minimum soil disturbance practices in reducing runoff and sediment yield. We present a quantitative review based on a nationwide meta‐analysis, including 536 runoff and 615 sediment‐paired observations, to evaluate the effectiveness of minimum soil disturbance practices in controlling water erosion in China. Minimum soil disturbance practices in China reduced runoff and sediment yield by 36.09% and 51.69%, respectively. Collecting soil to form ridges with no‐tillage, contour tillage with hedgerow, and micro‐basins tillage demonstrated significantly greater (p < 0.05) runoff and sediment yield reductions than other three practices (no‐tillage, no‐tillage with mulch, and contour tillage). Practices that change in soil properties by microtopography management were superior (p < 0.05) to practices that change soil properties without tillage in reducing runoff and sediment yield. Minimum soil disturbance practices are more effective in reducing sediment yield than runoff due to its additional effects besides reducing runoff directly. No correlations between runoff or sediment yield reduction and slope gradient were observed, whereas the efficiency of water erosion control by minimum soil disturbance practices increased with the increasing slope length. As a soil and water conservation measure, minimum soil disturbance practices can be applied in slope farmland of China.

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“…Studies have recommended the adoption of soil conservation systems, such as reduced or no-tillage, to prevent soil structural degradation, crust formation and soil loss by erosion [23][24][25][26]. Part of this study has already been published and showed that the greater soil revolving and incorporation of crop residues, promotes greater degradation by drop impact and crust formation [27].…”

Section: Introductionmentioning

confidence: 89%

Influence of Crust Formation on Soil Porosity under Tillage Systems and Simulated Rainfall

et al. 2017

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Surface crusts, formed by raindrop impact, degrade the soil surface structure causing changes in porosity. An experiment was conducted with the objective of evaluating the influence of the formation of a crusting layer on the porosity (percentage of area, shape and size) of a Haplic Acrisol under three tillage systems, and simulated rainfall. The tillage systems were: conventional tillage (CT), reduced tillage (RT) and no-tillage (NT). Each tillage system was submitted to different levels of simulated rainfall (0, 27, 54 and 80 mm) at an intensity of 80 mm·h −1 . Undisturbed soil samples were collected and resin impregnated for image analysis in two layers: layer 1 (0-1 cm) and layer 2 (1-2 cm). Image analysis was used to obtain the pore area percentage, pore shape and size. The degradation of the soil surface and change in porosity, caused by rainfall, occurred differently in the tillage systems. In the CT and RT systems, the most pronounced pore changes caused by rainfall occurred in layer 1, but in the NT system, this change occurred in layer 2. The rainfall caused change of pore area percentage in the CT and RT systems, with reduction of complex and an increase of rounded pores. The NT system showed greater occurrence of the rounded pores (vesicles), originated by processes of wetting below the residue cover, and by alternating periods of wetting and drying. In this study, the changes in porosity were attributed to two main factors: (1) to the effect of the raindrop directly on the soil surface (for CT and RT tillage systems) and (2) water transfer processes in the soil surface (for NT systems).

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No-tillage controls on runoff: A meta-analysis

Cited by 71 publications

References 38 publications

Two decades of no-till in the Oberacker long-term field experiment: Part I. Crop yield, soil organic carbon and nutrient distribution in the soil profile

Two decades of no-till in the Oberacker long-term field experiment: Part I. Crop yield, soil organic carbon and nutrient distribution in the soil profile

Effects of minimum soil disturbance practices on controlling water erosion in China's slope farmland: A meta‐analysis

Influence of Crust Formation on Soil Porosity under Tillage Systems and Simulated Rainfall

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