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98 results for “biochar”
How much is soil nitrous oxide emission reduced with biochar application? An evaluation of meta‐analyses
<p>This data file includes five datasets used to construct the following five figures.</p> <ul> <li>Fig. 1. Response ratios (RR) of biochar application on soil N<span class="font6"><sub>2</sub></span><span class="font5">O emissions from the meta-analyses and grand mean of RR and its 95% confident interval. Number on the right side is the total number of experiments used for RR calculation. <br></span> </li> <li>Fig. 2. Impacts of experimental setting including experiment type (a), ecosystem type (b), and experimental duration (c) on the response ratios (RR) of biochar application on soil N<span class="font6"><sub>2</sub></span><span class="font5">O emissions. Number on the right side is the total number of experiments used for RR calculation.</span> </li> <li>Fig. 3. Impacts of biochar properties including feedstock (a), pyrolysis temperature (b), pH (c), and C:N ratio (d) on the response ratios (RR) of biochar application on soil N<span class="font6"><sub>2</sub></span><span class="font5">O emissions. Number on the right side is the total number of experiments used for RR calculation.</span> </li> <li>Fig. 4. Impacts of soil properties including soil texture (a), soil organic carbon (SOC, b), C:N ratio (c), and soil pH (d) on the response ratios (RR) of biochar application on soil N<span class="font6"><sub>2</sub></span><span class="font5">O emissions. Number on the right side is the total number of experiments used for RR calculation.</span> </li> <li>Fig. 5. Impacts of agricultural practices including biochar application rate (a), type of fertilizer (b), and nitrogen (N) application rate (c) on the response ratios (RR) of biochar application on soil N<span class="font6"><sub>2</sub></span><span class="font5">O emission. Number on the right side is the total number of experiments used for RR calculation.</span> </li> </ul>
Effects of biochar amendment on daily CO2 emission
<p>Poplar residue-derived biochars were larger in surface area and total pore volume but lower in nutrients and pH values than the rice straw-derived biochar. Increasing pyrolysis temperature led to a decrease in the total nitrogen content (TN) of poplar leaf- and rice straw-derived biochars, but enhanced the TN in the poplar twig- and poplar bark-derived biochars. After 180-day incubation, the total cumulative CO<sub>2</sub> emission decreased by 33.1–73.8% in the biochar amendments compared to their corresponding biomass residue addition, whereas the biochars derived from poplar twig and bark residues had more positive effects on reducing soil CO<sub>2</sub> emissions, but depended on the pyrolysis temperature.</p>
Supplementary data - Biochar and its potential to deliver negative emissions and better soil quality in Europe
<p>Additional data from </p> <p>- Matlab script of the logistic transport model for the transportation of forest and crop residues to biochar production plants</p> <p>- Gridded data from the maps in the publication and its supplementary information as geotiff, projection system "ETRS89-extended / LAEA Europe"</p>
Data from: Biochar from "Kon Tiki" flame curtain and other kilns: effects of nutrient enrichment and kiln type on crop yield and soil chemistry
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Data from: Phosphorus release from unamended and gypsum-or biochar-amended soils under simulated spring snowmelt and summer flooding conditions
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Code in support of: Physical and chemical mechanisms that influence the electrical conductivity of lignin-derived biochar
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No evidence that conifer biochar impacts soil functioning by serving as microbial refugia in boreal soils
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Effects of biochar amendment on daily CO2 emission
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Data from: Simultaneous removal of fluoride and arsenic in geothermal water in Tibet using modified yak dung biochar as an adsorbent
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Data from: Biochar application on paddy and purple soils in southern China: soil carbon and biotic activity
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Data from: Transient negative biochar effects on plant growth are strongest after microbial species loss
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How much is soil nitrous oxide emission reduced with biochar application? An evaluation of meta‐analyses
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Data from: Effects of biochar on fate and toxicity of herbicide fenoxaprop-ethyl in soil
The biochar as soil amendment in agriculture has attracted considerable attention. In the study, the fate and toxicity of the herbicide fenoxaprop-ethyl were evaluated in soils with and without 5% rice husk biochar amendment. Fenoxaprop-ethyl and metabolite fenoxaprop degraded followed first-order kinetics in the two soils. Fenoxaprop-ethyl decreased fast with half-lives less than 2 days. Large amounts of fenoxaprop formed and remained in control soil. However, fenoxaprop was much lower in biochar-amended soil with reduction over 85% at the 35th day. The estimated half-lives of fenoxaprop were 56.9 and 1.5 days in control and biochar-amended soils, respectively. Biochar restrained the formation and promoted the dissipation of fenoxaprop. Biological indicator earthworms (Eisenia fetida) were used in a 14-day acute toxicity test. Fenoxaprop-ethyl shown low toxic to earthworms with LC50 value of 322.9 μg/g. Biochar amendment was nontoxic to earthworms and effectively reduced the toxicity. The results suggested that the application of biochar may reduce the risks of fenoxaprop-ethyl in the soil environment.
Data from: Effect of soil pH increase by biochar on NO, N2O and N2 production during denitrification in acid soils
Biochar (BC) application to soil suppresses emission of nitrous- (N2O) and nitric oxide (NO), but the mechanisms are unclear. One of the most prominent features of BC is its alkalizing effect in soils, which may affect denitrification and its product stoichiometry directly or indirectly. We conducted laboratory experiments with anoxic slurries of acid Acrisols from Indonesia and Zambia and two contrasting BCs produced locally from rice husk and cacao shell. Dose-dependent responses of denitrification and gaseous products (NO, N2O and N2) were assessed by high-resolution gas kinetics and related to the alkalizing effect of the BCs. To delineate the pH effect from other BC effects, we removed part of the alkalinity by leaching the BCs with water and acid prior to incubation. Uncharred cacao shell and sodium hydroxide (NaOH) were also included in the study. The untreated BCs suppressed N2O and NO and increased N2 production during denitrification, irrespective of the effect on denitrification rate. The extent of N2O and NO suppression was dose-dependent and increased with the alkalizing effect of the two BC types, which was strongest for cacao shell BC. Acid leaching of BC, which decreased its alkalizing effect, reduced or eliminated the ability of BC to suppress N2O and NO net production. Just like untreated BCs, NaOH reduced net production of N2O and NO while increasing that of N2. This confirms the importance of altered soil pH for denitrification product stoichiometry. Addition of uncharred cacao shell stimulated denitrification strongly due to availability of labile carbon but only minor effects on the product stoichiometry of denitrification were found, in accordance with its modest effect on soil pH. Our study indicates that stimulation of denitrification was mainly due to increases in labile carbon whereas change in product stoichiometry was mainly due to a change in soil pH.
Supplementary material 1 from: Ali HE, Bucher SF, Bernhardt-Römermann M, Römermann C (2023) Biochar application can mitigate the negative impacts of drought in invaded experimental grasslands as shown by a functional traits approach. NeoBiota 89: 239-259. https://doi.org/10.3897/neobiota.89.109244
Supplementary information
Effects of biochar soil amendments on soil properties and plant recruitment in coastal climate change adaptation projects
<p>Biochar is a carbon-rich material produced through the pyrolysis of organic waste from the agricultural and forestry industries. Because black carbon is chemically stable, its application to agricultural fields is being touted as a method to mitigate greenhouse gas emissions as it has been shown to improve the fertility of the soil and crop yields as well as increase carbon sequestration. This data publication archives data from a set of paired restoration projects that incorporated biochar soil amendments to test the ability of biochar to provide positive ecosystem or carbon sequestration benefits.</p>
Digital research data from: Biochar stability in a highly weathered sandy soil under four years of continuous corn production
<p>Biochar is being considered a climate change mitigation tool by increasing soil organic carbon contents (SOC), however, questions remain concerning its longevity in soil. We applied 30,000 kg ha−1 of biochars to plots containing a Goldsboro sandy loam (Fine-loamy, siliceous, sub-active, thermic Aquic Paleudults) and then physically disked all plots. Thereafter, the plots were agronomically managed under 4 years (Y) of continuous corn (Zea Mays, L.) planting. Annually, incremental soil along with corresponding bulk density samples were collected and SOC concentrations were measured in topsoil (down to 23-cm). The biochars were produced from Lodgepole pine (Pinus contorta) chip (PC) and Poultry litter (PL) feedstocks. An untreated Goldsboro soil (0 biochar) served as a control.</p>
Data from: Corn grain and stover nutrient uptake responses from sandy soil treated with designer biochars and compost
<p>This is digital research data corresponding to a published manuscript, Corn grain and stover nutrient uptake responses from sandy soil treated with designer biochars and compost. 2021. Agronomy. <span>11(5):942. </span>https://doi.org/10.3390/agronomy11050942.</p> <p>Biochars are used for soil fertility improvement because they may contain certain elements that plants use as nutrients, however, few studies have demonstrated enhanced crop nutrient uptake. Our study examined nutrient uptake responses of corn (Zea Mays L.) grain and stover over 4 years (Y) after a Goldsboro loamy sand (Fine-loamy, siliceous, sub-active, thermic Aquic Paleudults) received different designer biochars and a compost. The designer biochars were produced from lodgepole pine (Pinus contorta) chip (PC), poultry litter (PL), blends with switchgrass (SG; Panicum virgatum), and a SG compost alone.</p>
MIMICS-BC_v1.0: Modeling biochar effects on soil organic carbon on croplands in a microbial decomposition model
<p>The code and data of MIMICS-BC_v1.0 related to the manuscript in submission</p>
Evaluating Heavy Metal Mobility in Contaminated Soils Amended with Biochar: A Kinetic Perspective
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.