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The aim of this study was to investigate the effects of biochar application on soil methane (CH4) emission. Experiments were conducted over an 84-day incubation period with the following treatments: each of two soils (a paddy soil and a forest soil) was treated with or without biochar at three soil moisture levels (35, 60, and 100 % water-filled pore space(More)
Traditional risk assessment and source apportionment of sediments based on bulk polycyclic aromatic hydrocarbons (PAHs) can introduce biases due to unknown aging effects in various sediments. We used a mild solvent (hydroxypropyl-β-cyclodextrin) to extract the bioavailable fraction of PAHs (a-PAHs) from sediment samples collected in Pearl River, southern(More)
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