We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Effects of Biochar on Methane Emissions and Crop Yields in East Asian Paddy Fields: A Regional Scale Meta-Analysis
Summary
This regional meta-analysis of 43 studies found that biochar application to East Asian rice paddies significantly reduced methane emissions while increasing soil organic carbon and crop yields. The magnitude of these benefits depended on biochar feedstock type, application rate, and soil properties.
Biochar emerged as a potential solution to mitigating greenhouse gas emissions, though previous studies obtained variable results regarding its effects on methane (CH4) emissions and crop yields. Global meta-analyses were conducted regarding the effectiveness of biochar, though regional meta-analyses are still needed. We performed a meta-analysis of 43 published papers to obtain the central tendency of the response to biochar application in East Asian rice paddies. Biochar application significantly reduced methane emissions while increasing the soil organic carbon (SOC) content and crop yield. We identified the most significant influencing factors on the CH4 emissions, SOC content, and crop yield. Our findings provide a scientific basis for the application of biochar to East Asian rice paddies, as well as to study the effects of biochar application in East Asian rice paddies. The numbers in parentheses represent the sample sizes.
Sign in to start a discussion.
More Papers Like This
CH4 and N2O emissions and their potential control by rice biomass biochar: The case of continuously flooded paddy fields in Indonesia - A review
This review analyzes published data on methane (CH4) and nitrous oxide (N2O) emissions from continuously flooded paddy fields across different soil types in Indonesia and examines the potential of biochar derived from rice straw and rice husk to mitigate greenhouse gas emissions, finding that emissions vary significantly by soil type and region.
Rice yield and carbon dioxide emissions in a paddy soil: A comparison of biochar and polystyrene microplastics
Researchers compared the effects of biochar and polystyrene microplastics on rice growth and carbon dioxide emissions in paddy soil. Both materials increased CO2 emissions, but biochar improved rice yield while microplastics did not provide the same benefits. The study suggests that microplastic accumulation in rice paddies could worsen greenhouse gas emissions without the soil-improvement benefits that biochar offers.
Biochar as a Soil Amendment for Restraining Greenhouse Gases Emission and Improving Soil Carbon Sink: Current Situation and Ways Forward
Researchers reviewed the effectiveness of biochar as a soil amendment for reducing greenhouse gas emissions and enhancing soil carbon storage. The study found that while biochar shows promise in laboratory settings, field-scale results are mixed, with effectiveness depending on feedstock type, pyrolysis temperature, and application rate.
Low-density polyethylene microplastics and biochar interactively affect greenhouse gas emissions and microbial community structure and function in paddy soil
Researchers examined how low-density polyethylene microplastics and biochar interact when added to paddy soil, affecting greenhouse gas emissions and microbial communities. The study found that both amendments significantly increased methane emissions while suppressing carbon dioxide output, and their combined presence altered soil microbial community structure and functional gene abundances in ways that influence biogeochemical processes.
Enhancing Organic Carbon Content in Tropical Soils: Strategies for Sustainable Agriculture and Climate Change Mitigation
This review examines strategies for increasing organic carbon content in tropical soils, which naturally tend to have low levels that limit agricultural productivity. Researchers evaluated approaches including cover cropping, composting, biochar application, and reduced tillage as effective methods. The study emphasizes that building soil carbon is essential for both sustainable farming and reducing greenhouse gas emissions in tropical regions.