Article
Engineering, Environmental
Monika Niemczyk, Parvin Berenjkar, Richard Sparling, Stan Lozecznik, Qiuyan Yuan
Summary: This study optimized the mixture of compost materials for methane oxidation in a landfill biocover. The main factors that limited methane oxidation efficiency were high moisture content, exopolymeric substance formation, and fine texture of the materials.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Environmental Sciences
Shijia Wang, Yafen Guo, Xiaoyang Cui
Summary: Both nitrogen deposition and soil freeze-thaw cycles have significant effects on greenhouse gas emissions in temperate forest ecosystems, with nitrogen addition leading to increased N2O and CO2 emissions and inhibition of CH4 uptake. Soil respiration rate is significantly increased with medium sodium nitrate addition, and high levels of nitrogen addition inhibit CH4 uptake. Considerations of dissolved organic carbon, microbial biomass carbon and nitrogen, and inorganic nitrogen in soil are important for predicting future feedback effects of greenhouse gas emissions on climate change.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Monika Niemczyk, Parvin Berenjkar, Nicole Wilkinson, Stan Lozecznik, Richard Sparling, Qiuyan Yuan
Summary: This study evaluated the efficacy of yard waste and leaf compost (YWLC) and biosolids compost (BSC) as bio-based landfill cover materials for oxidizing methane (CH4), finding that optimal results were achieved with mixing ratios of 1:1 and 1:4 between the two composts.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Environmental Sciences
Xuechen Yang, Deping Liu, Qiang Fu, Tianxiao Li, Renjie Hou, Qinglin Li, Mo Li, Fanxiang Meng
Summary: This study explores the mechanisms of biochar on soil greenhouse gas emissions in seasonally frozen soil areas, and finds that biochar can reduce nitrous oxide emissions, increase carbon dioxide emissions, and enhance methane absorption. The results provide theoretical basis and scientific guidance for reducing greenhouse gas emissions using biochar.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Chan Guo, Xufei Liu, Xuefei He
Summary: The study collected 174 studies from 16 countries to determine appropriate nitrogen fertilization rates for enhancing crop yield while reducing greenhouse gas emissions. Results showed positive effects on crop yield and negative effects on greenhouse gas intensity, with recommendations for specific application strategies in different regions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Jesse F. Abrams, Chris Huntingford, Mark S. Williamson, David I. Armstrong McKay, Chris A. Boulton, Joshua E. Buxton, Boris Sakschewski, Sina Loriani, Caroline Zimm, Ricarda Winkelmann, Timothy M. Lenton
Summary: This study investigates the response of the planet under fixed concentration commitments, with a focus on assessing the likelihood of exceeding temperature thresholds that trigger climate tipping points. The research finds that if today's radiative forcing is maintained until achieving equilibrium global warming, the likelihood of crossing the 1.5 degrees Celsius and 2.0 degrees Celsius thresholds is 83% and 55% respectively.
Article
Soil Science
Yulong Shi, Xingren Liu, Qingwen Zhang, Guichun Li, Peihuan Wang
Summary: This study investigated the effects of continuous application of biochar and organic fertilizer on global warming potential (GWP), greenhouse gas intensity (GHGI), and crop yield in a saline-alkali farmland in northern China. The results showed that both biochar and organic fertilizer reduced greenhouse gas emissions, but biochar had a greater effect and also increased crop yield and improved soil quality.
SOIL & TILLAGE RESEARCH
(2022)
Article
Engineering, Multidisciplinary
He Pinjing, Chen JunLan, Shao Liming, Zhang Hua, Lu Fan
Summary: Landfilling is a common method of waste disposal in loess regions, with loess often used as landfill cover soil. This study proposed a method to improve methane removal capacity of loess by amelioration with mature landfill leachate, leading to significant increase in organic matter content and methane-oxidizing bacteria abundance. The methane removal rate of ameliorated loess was significantly higher than that of water-irrigated loess, with potential for achieving carbon neutrality in global loess landfill sites.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2021)
Article
Chemistry, Multidisciplinary
Tariq M. Bajwa, Mamadou Fall, Fahad Alshawmar
Summary: A landfill biocover system is effective in controlling methane emissions from landfills. The study finds that wasted compost material has a higher potential for methane oxidation. The engineering properties of compacted compost are suitable for methane oxidation, even under varying water content. The low thermal properties of compost allow for a stable temperature during the winter, extending the methane oxidation process.
APPLIED SCIENCES-BASEL
(2022)
Article
Soil Science
Yingting Gong, Peiran Li, Nobuo Sakagami, Masakazu Komatsuzaki
Summary: No-tillage and cover crops have positive effects on soil organic carbon sequestration and crop yields, potentially supporting food security and reducing greenhouse gas emissions. However, the effects of long-term NT systems and cover crops on non-CO2 emissions and SOC sequestration are not well-documented, particularly in East Asia.
SOIL & TILLAGE RESEARCH
(2021)
Article
Environmental Sciences
Jens Terhaar, Thomas L. Frolicher, Mathias T. Aschwanden, Pierre Friedlingstein, Fortunat Joos
Summary: This study proposes an adaptive approach based on past observations to quantify global emissions reductions and achieve temperature targets, demonstrating its robustness against uncertainties.
NATURE CLIMATE CHANGE
(2022)
Article
Environmental Sciences
Junlan Chen, Yujing Wang, Liming Shao, Fan Lu, Hua Zhang, Pinjing He
Summary: This study improved the capability of loess in removing NH3 and H2S by modifying it with biologically stabilized leachate, offering a new method for in-situ control of malodorous pollutants in landfills in loess regions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Chemistry, Multidisciplinary
Kirsten Rosselot, David T. Allen, Anthony Y. Ku
Summary: To reduce global warming, the impact of construction emissions from infrastructure must be addressed in technology switching. Current assessment methods are not realistic, and more realistic approaches should consider the temporal evolution of short-lived climate forcing species and the timing of construction emissions.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Soil Science
Lihong Wang, Hui Liu, Hongyu Li, Aizheng Yang, Zuowei Zhang, Lijun Wang
Summary: As global warming intensifies, the soil environment in middle to high latitudes will experience more frequent and extensive freeze-thaw cycles, leading to significant effects on the carbon and nitrogen cycles in soil ecosystems and increased greenhouse gas emissions. This study investigated the use of biochar to mitigate greenhouse gas emissions from soil during freeze-thaw cycles. The results showed that N2O and CO2 emissions were promoted during freeze-thaw cycles, while CH4 emissions were negative and promoted by biochar. The emissions were significantly correlated with pH, soil moisture, and soil organic matter, among other soil properties.
SOIL USE AND MANAGEMENT
(2023)
Article
Environmental Sciences
Walter Leal Filho, Maria Alzira Pimenta Dinis, Gustavo J. Nagy, Umberto Fracassi
Summary: This short communication reports on the pressures of climate change on permafrost and emphasizes the significant impacts of permafrost thawing on the Earth's climate. The article calls for global action to reduce greenhouse gas emissions and provides specific suggestions for mitigating the impacts of permafrost depletion.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)