Controllability of runoff and soil loss from small plots treated by vinasse-produced biochar

Sadeghi, Seyed Hamidreza; Hazbavi, Zeinab; Kiani-Harchegani, Mahboobeh

doi:10.1016/j.scitotenv.2015.09.068

Cited by 120 publications

(71 citation statements)

References 25 publications

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“…Soil physical and hydrological properties, which affect soil erodibility, could change slowly with time after biochar application. Sadeghi et al (2016) found that vinasse biochar applied to the soil surface reduced runoff by 98% after 24 h of application and 46% after 48 h of application. While the mechanisms for this rapid decrease in runoff are unclear, the finding appears to suggest that biochar effect on reducing runoff may rapidly decrease with time after application.…”

Section: Impacts Of Biochar Application On Water Erosionmentioning

confidence: 98%

Biochar and Water Quality

Blanco‐Canqui¹

2019

J of Env Quality

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Biochar application is considered to be an emerging strategy to improve soil ecosystem services. However, implications of such application on water quality parameters have not been widely discussed. This paper synthesizes the state‐of‐the‐art research on biochar effects on water erosion, nitrate leaching, and other sources of water pollution. Literature indicates that in general, biochar application reduces runoff by 5 to 50% and soil loss by 11 to 78%, suggesting that it can be effective at reducing water erosion, but the magnitude of erosion reduction is highly variable. Co‐application of biochar with other organic amendments (i.e., animal manure, compost) appears to be more effective at reducing water erosion than biochar alone. A main mechanism by which biochar can reduce water erosion is by improving soil properties (i.e., organic C, hydraulic conductivity, aggregate stability), which affect soil erodibility. This review also indicates that biochar reduces nitrate leaching, in most cases by 2 to 88%, but has mixed effect on phosphate and dissolved C leaching. Additionally, biochar effectively filters urban runoff, adsorbs pollutants, and reduces pesticides losses. Biochar feedstock, pyrolysis temperature, application amount, time after application, and co‐application with other amendments affect biochar impacts on water quality. Biochar erosion and potential reduction in nutrient and pesticide use efficiency due to the strong adsorption are concerns that deserve consideration. Overall, biochar application has the potential to reduce water erosion, nitrate leaching, pesticide losses, and other pollutant losses, but more field‐scale data are needed to better discern the extent to which biochar can improve water quality. Core Ideas Biochar can reduce water erosion, but the magnitude of reduction is variable. Biochar combined with other organic amendments can reduce water erosion more than biochar alone. Biochar can reduce nitrate leaching but has mixed effects on phosphate and dissolved C leaching. Biochar filters urban runoff, adsorbs organic pollutants, and reduces pesticide losses. More field data on the effectiveness of biochar for improving water quality are needed.

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Section: Impacts Of Biochar Application On Water Erosionmentioning

confidence: 98%

Biochar and Water Quality

Blanco‐Canqui¹

2019

J of Env Quality

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“…Biochar can exert a significant influence on the leaching of soluble elements from the soil [6,7]. Biochar is a carbon-rich, solid by-product obtained from agricultural and forestry biomasses pyrolysis [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Soil Amendment with Biochar Affects Water Drainage and Nutrient Losses by Leaching: Experimental Evidence under Field-Grown Conditions

et al. 2019

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Leaching of soluble elements from cultivated soils is a major concern to meet the target of agricultural sustainability in most areas. The effect of biochar application to a cultivated soil on water drainage and the consequent solute losses was assessed during a trial carried out over two consecutive growing seasons. Biochar was added to a loam-texture soil, at 0, 1, and 2% d.w. rates. A lysimeter-like set-up arranged in the experimental field-unit, allowed collecting the percolating water. Two multiple linear regressions (ANCOVA models) were applied to detect biochar effect on: (1) The seasonal amount of drained water; and (2) the concentration of solutes in the drained water. The statistical comparison among a set of slope coefficients as affected by treatments (growing season and biochar) was used as modelling approach. The lower biochar application rate (1%) significantly reduced both the amount of drained water and its concentration in solutes. Conversely, the higher biochar application rate (2%) showed no significant effects. Nitrate and chloride showed a significant interaction with biochar application rates. Higher biochar application increased nitrate leaching while reduced that of chloride. Biochar application within a rate no more than 1% resulted in a useful and quite effective technical operation.

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“…Accordingly, variety of amendments viz. gypsum, lime, sawdust and wood ash, municipal wastes (Sadeghi et al, 2016); organic composts, animal and crop manures, crop and food industries residues (Sadeghi et al, 2015); native plant residues mulching (Mwango et al, 3 2015); secondary vegetation succession (van Hall et al, 2016); oil mulches and types of oil and biodegradable polymers (Zohuriaan-Mehr and Kabiri, 2008) were used to controlling soil erosion.…”

Section: Introductionmentioning

confidence: 99%

Controlling rainfall-induced soil loss from small experimental plots through inoculation of bacteria and cyanobacteria

Kheirfam

Sadeghi

Darki

et al. 2017

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Soil erosion is a major limitation for achieving sustainable development. Controlling soil detachment in initial stage of soil erosion induced by rainfall is necessary. Several organic and inorganic amendments have been used to reduce rainfall-induced erosion. Meanwhile, the impact of soil microorganisms has been approved on improving soil aggregation by previous studies. However, studying the feasibility of inoculation of soil microorganisms to reduce soil loss by rainfall-induced erosion has not been considered yet. Hence, the present study was planned to investigate the controllability of soil loss induced by rainfall-induced through the inoculation of bacteria and cyanobacteria into a study soil. Soil samples were collected from an erosion-prone area from which suitable existing bacteria and cyanobacteria for soil and water conservation were selected, purified and proliferated. The bacteria and cyanobacteria were then inoculated

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Controllability of runoff and soil loss from small plots treated by vinasse-produced biochar

Cited by 120 publications

References 25 publications

Biochar and Water Quality

Biochar and Water Quality

Soil Amendment with Biochar Affects Water Drainage and Nutrient Losses by Leaching: Experimental Evidence under Field-Grown Conditions

Controlling rainfall-induced soil loss from small experimental plots through inoculation of bacteria and cyanobacteria

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