Biochar increased field soil inorganic carbon content five years after application

Dong, Xinliang; Singh, Bhupinder; Li, Guitong; Lin, Qimei; Zhao, Xingbo

doi:10.1016/j.still.2018.09.013

Cited by 57 publications

(34 citation statements)

References 64 publications

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“…Our results are consistent with Dong et al (2019), following that SIC content increases with the soil depth [79]. The SIC in subsurface soil was more extensive than that in the surface layer (Figure 2b).…”

Section: Effects Of Crop Cultivation On Sicsupporting

confidence: 89%

Corn and Rice Cultivation Affect Soil Organic and Inorganic Carbon Storage through Altering Soil Properties in Alkali Sodic Soils, Northeast of China

Wang

Tang

et al. 2020

Sustainability

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Soil organic carbon (SOC) and soil inorganic carbon (SIC) play essential roles in carbon cycling in terrestrial ecosystems; however, the effects of crop cultivation on them are still poorly understood, especially in alkali sodic soils widely distributed in semiarid regions. Alkali sodic soils from cornfields and paddies with cultivation years of 5, 15, and 25 were analyzed here to assess the response of soil properties and soil carbon pools to crop cultivation. Soil pH and exchangeable sodium percentages decrease in accordance with cultivation years, while enzyme activity (amylase, invertase, and catalase) shows a contrary trend. Soil pH and exchangeable sodium percentages are negatively correlated with SOC, but positively correlated with SIC. Redundancy analysis reveals an obvious relationship between SOC and invertase activity. The percentage of δ 13 C SOC found here is approximately -24.78% to -22.97% for cornfields and approximately -26.54% to -23.81% for paddies, suggesting that crop cultivation contributes to SOC sequestration and stocking, increasing with cultivation years. The percentage of δ 13 C SIC found here is approximately 1.90% to 3.73% , proving that lithogenic inorganic carbon is the major SIC, where the stock decreases with increasing cultivation years. Significant total carbon stock loss is observed in cornfields, while it is preserved at 120 Mg ha −1 in paddies. We conclude here from the results that corn and rice cultivation reduce alkali sodic conditions in soil, thereby improving soil enzymes and favoring SOC stocking, but reducing SIC stocks.

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Section: Effects Of Crop Cultivation On Sicsupporting

confidence: 89%

Corn and Rice Cultivation Affect Soil Organic and Inorganic Carbon Storage through Altering Soil Properties in Alkali Sodic Soils, Northeast of China

Wang

Tang

et al. 2020

Sustainability

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“…In last time, biochar has becoming a great of interest as a mean for carbon sequestration, resulting from its high content of carbon and long-term persistence in soil (Dong et al, 2019). Biochar is the solid product of pyrolysis, designed to be used for environmental management (Lehmann et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Differences in soil properties and crop yields after application of biochar blended with farmyard manure in sandy and loamy soils

Šimanský¹,

Šrank²,

Juriga³

2019

Acta fytotechn zootechn

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In recent years, the importance of biochar application in world´s soils have increased tendency mainly due to its opposite effects. Therefore, the effort of many companies is based on the development of soil amendment which together improve properties and crop productivity in lot of soils. In this short study, we have verified the effectiveness of biochar blended with farmyard manure named Effeco on soil properties and crop yields in different textural soils (1. sandy soil in Dolná Streda and 2. loamy soil in Veľké Uľany). Our results showed that the Effeco increased soil pH in both soils. In sandy soil, the Effeco more significantly affected sorptive parameters and soil organic carbon content than in loamy soil. Water retention in capillary pores after Effeco application in sandy and loamy soils was higher by 22% and 4%, respectively compared to control. On the other hand, more significant effect of Effeco application on soil structure was observed in loamy soil. The total crop productions in sandy and loamy soils due to the Effeco application were higher by 82% and 16%, respectively, compared to control plots. All in all, we concluded that the effects of biochar blended with farmyard manure differ mainly on soil texture.

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“…Therefore, a biochar application rate of <10 t ha −1 is deemed a better choice. Although the short-term effect of biochar application has been discussed in previous studies [30], the long-term benefits of biochar application as a soil amendment are still unclear because the trial lengths were generally 5 years or less [31]. For example, the inhibiting effect of biochar application on soil CH 4 emission was reported to occur during the first three months of biochar application [32].…”

Section: Biochar Effect On Soil Ghg Emissions For Varying Management mentioning

confidence: 99%

Quantifying the Effects of Biochar Application on Greenhouse Gas Emissions from Agricultural Soils: A Global Meta-Analysis

et al. 2020

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Agricultural disturbance has significantly boosted soil greenhouse gas (GHG) emissions such as methane (CH 4 ), carbon dioxide (CO 2 ), and nitrous oxide (N 2 O). Biochar application is a potential option for regulating soil GHG emissions. However, the effects of biochar application on soil GHG emissions are variable among different environmental conditions. In this study, a dataset based on 129 published papers was used to quantify the effect sizes of biochar application on soil GHG emissions. Overall, biochar application significantly increased soil CH 4 and CO 2 emissions by an average of 15% and 16% but decreased soil N 2 O emissions by an average of 38%. The response ratio of biochar applications on soil GHG emissions was significantly different under various management strategies, biochar characteristics, and soil properties. The relative influence of biochar characteristics differed among soil GHG emissions, with the overall contribution of biochar characteristics to soil GHG emissions ranging from 29% (N 2 O) to 71% (CO 2 ). Soil pH, the biochar C:N ratio, and the biochar application rate were the most influential variables on soil CH 4 , CO 2 , and N 2 O emissions, respectively. With biochar application, global warming potential (impact of the emission of different greenhouse gases on their radiative forcing by agricultural practices) and the intensity of greenhouse gas emissions (emission rate of a given pollutant relative to the intensity of a specific activity) significantly decreased, and crop yield greatly increased, with an average response ratio of 23%, 41%, and 21%, respectively. Our findings provide a scientific basis for reducing soil GHG emissions and increasing crop yield through biochar application.

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Biochar increased field soil inorganic carbon content five years after application

Cited by 57 publications

References 64 publications

Corn and Rice Cultivation Affect Soil Organic and Inorganic Carbon Storage through Altering Soil Properties in Alkali Sodic Soils, Northeast of China

Corn and Rice Cultivation Affect Soil Organic and Inorganic Carbon Storage through Altering Soil Properties in Alkali Sodic Soils, Northeast of China

Differences in soil properties and crop yields after application of biochar blended with farmyard manure in sandy and loamy soils

Quantifying the Effects of Biochar Application on Greenhouse Gas Emissions from Agricultural Soils: A Global Meta-Analysis

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