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Open AccessArticle

Variation of Greenhouse Gases Fluxes and Soil Properties with Addition of Biochar from Farm-Wastes in Volcanic and Non-Volcanic Soils

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Department of Soils and Natural Resources, Faculty of Agronomy, Universidad de Concepción, Chillán 3812120, Chile
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Doctoral Program in Agronomic Sciences, Universidad de Concepción, Chillán 3812120, Chile
*
Author to whom correspondence should be addressed.
Sustainability 2019, 11(7), 1831; https://doi.org/10.3390/su11071831
Received: 26 February 2019 / Revised: 19 March 2019 / Accepted: 22 March 2019 / Published: 27 March 2019
The decomposition of organic wastes contributes to greenhouse gas (GHG) emissions and global warming. This study evaluated the effect of biochar (BC) produced from different farm wastes (chicken, pig and cow manures) on greenhouse gas emissions and soil chemical and biological properties in different grassland soils (volcanic and non-volcanic soils). A 288-day laboratory experiment was carried out, monitoring CO2, N2O and CH4 emissions and evaluating total C, soil pH, microbial biomass and enzymatic activity in three grassland soils. The results varied depending on the soil type and feedstock of BC produced. BC-cow decreased emissions of CO2 and CH4 fluxes for volcanic and non-volcanic soils, probably due to decreases in β-glucosidase activity. Biochars from cow and pig manures increased soil C content, favouring the persistence of C into the soil at 288-days of incubation. Soil pH increased with the application of BC in the soils. View Full-Text
Keywords: greenhouse gases; biochar; farm wastes; microbial biomass; Total Carbon greenhouse gases; biochar; farm wastes; microbial biomass; Total Carbon
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Muñoz, C.; Ginebra, M.; Zagal, E. Variation of Greenhouse Gases Fluxes and Soil Properties with Addition of Biochar from Farm-Wastes in Volcanic and Non-Volcanic Soils. Sustainability 2019, 11, 1831.

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