Search Results - "Fidel, Rivka"

Sorption of ammonium and nitrate to biochars is electrostatic and pH-dependent by Fidel, Rivka B., Laird, David A., Spokas, Kurt A.

“…Biochars are potentially effective sorbents for NH 4 + and NO 3 − in water treatment and soil applications. Here we compare NH 4 + and NO 3 − sorption rates to…”
Get full text

Characterization and quantification of biochar alkalinity by Fidel, Rivka B., Laird, David A., Thompson, Michael L., Lawrinenko, Michael

“…Lack of knowledge regarding the nature of biochar alkalis has hindered understanding of pH-sensitive biochar-soil interactions. Here we investigate the nature…”
Get full text

Effect of Biochar on Soil Greenhouse Gas Emissions at the Laboratory and Field Scales by Fidel, Rivka, Laird, David, Parkin, Timothy

“…Biochar application to soil has been proposed as a means for reducing soil greenhouse gas emissions and mitigating climate change. The effects, however, of…”
Get full text

Evaluation of Modified Boehm Titration Methods for Use with Biochars by Fidel, Rivka B., Laird, David A., Thompson, Michael L.

“…The Boehm titration, originally developed to quantify organic functional groups of carbon blacks and activated carbons in discrete pKa ranges, has received…”
Get full text

Impact of Biochar Organic and Inorganic Carbon on Soil CO2 and N2O Emissions by Fidel, Rivka B., Laird, David A., Parkin, Timothy B.

“…Biochar has been shown to influence soil CO2 and N2O emissions following application to soil, but the presence of carbonates in biochars has largely confounded…”
Get full text

Impact of six lignocellulosic biochars on C and N dynamics of two contrasting soils by Fidel, Rivka B., Laird, David A., Parkin, Timothy B.

“…Both soil and biochar properties are known to influence greenhouse gas emissions from biochar‐amended soils, but poor understanding of underlying mechanisms…”
Get full text

Faecal and nitrate contamination in the groundwater of Mardan district, Pakistan by Rahman, Zia ur, Ahmad, Saeed, Fidel, Rivka, Khalid, Salma, Ahmad, Iqbal, Humphrey, Olivier S., Khan, Hizbullah, Khan, Bushra

“…This study aimed to determine the status of groundwater contamination with faecal coliform and nitrate in the rural areas of Mardan district, Pakistan. Both…”
Get full text

Impact of Biochar Organic and Inorganic Carbon on Soil CO 2 and N 2 O Emissions by Fidel, Rivka B, Laird, David A, Parkin, Timothy B

“…Biochar has been shown to influence soil CO and NO emissions following application to soil, but the presence of carbonates in biochars has largely confounded…”
Get full text

Commentary on 'Current economic obstacles to biochar use in agriculture and climate change mitigation' regarding uncertainty, context-specificity and alternative value sources by Fidel, Rivka, Archontoulis, Sotirios, Babcock, Bruce, Brown, Robert C., Dokoohaki, Hamzeh, Hayes, Dermot, Laird, David A., Miguez, Fernando, Wright, Mark Mba

“…A recent study in Carbon Management, by Bach et al., argues that biochar amendments' positive impacts on crop yields and soil carbon sequestration have been…”
Get full text

Biochar efficacy for reducing heavy metals uptake by Cilantro (Coriandrum sativum) and spinach (Spinaccia oleracea) to minimize human health risk by Khan, Amir Zeb, Ding, Xiaodong, Khan, Sardar, Ayaz, Tehreem, Fidel, Rivka, Khan, Muhammad Amjad

“…Environmentally friendly and cost-effective techniques are required to reclaim land degraded during mining activities. Bioaccumulation of heavy metals (HMs) in…”
Get full text

Contrasting effects of biochar application rate in an alkaline desert cropland soil by Hoglund, Shelby R., Rathke, Samuel J., Fidel, Rivka B., Blankinship, Joseph C.

“…Improving water and nutrient retention in desert croplands using soil organic amendments can be a major challenge because organic matter decomposes quickly…”
Get full text

Perennial biomass crop establishment, community characteristics, and productivity in the upper US Midwest: Effects of cropping systems seed mixtures and biochar applications by Bonin, Catherine L., Fidel, Rivka B., Banik, Chumki, Laird, David A., Mitchell, Robert, Heaton, Emily A.

“…•Seed mix choice affected stand yields and community characteristics.•Increased plant diversity increased weed management challenges in large fields.•Biochar…”
Get full text

Biochar properties and impact on soil CO2 and N 2O emissions by Fidel, Rivka Brandt

“…Biochar application to soil has been proposed as a means to sequester carbon and mitigate anthropogenic greenhouse gas (GHG) emissions. However, biochar…”
Get full text

Evaluation and implementation of methods for quantifying organic and inorganic components of biochar alkalinity by Fidel, Rivka Brandt

“…When used as a soil amendment, biochar has the potential to increase soil pH and provide several other benefits to soil quality, but scientific understanding…”
Get full text

Evaluation and implementation of methods for quantifying organic and inorganic components of biochar alkalinity by Fidel, Rivka Brandt

“…When used as a soil amendment, biochar has the potential to increase soil pH and provide several other benefits to soil quality, but scientific understanding…”
Get full text