keyword
MENU ▼
Read by QxMD icon Read
search

Soil

keyword
https://www.readbyqxmd.com/read/29151188/dry-flue-gas-desulfurization-by-product-application-effects-on-plant-uptake-and-soil-storage-changes-in-a-managed-grassland
#1
Jason R Burgess-Conforti, Kristofor R Brye, David M Miller, Erik D Pollock, Lisa S Wood
Environmental regulations mandate that sulfur dioxide (SO2) be removed from the flue gases of coal-fired power plants, which results in the generation of flue gas desulfurization (FGD) by-products. These FGD by-products may be a viable soil amendment, but the large amounts of trace elements contained in FGD by-products are potentially concerning. The objective of this study was to evaluate the effects of land application of a high-Ca dry FGD (DFGD) by-product on trace elements in aboveground biomass and soil...
November 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29151187/spatial-distributions-of-hexachlorobutadiene-in-agricultural-soils-from-the-yangtze-river-delta-region-of-china
#2
Jianteng Sun, Lili Pan, Yu Zhan, Lizhong Zhu
Hexachlorobutadiene (HCBD) is one of the persistent organic pollutants (POPs) listed by the Stockholm Convention and poses potential risks to human health and ecosystems. To reveal the regional-scale pollution status of HCBD in agricultural soils from fast-developing areas, an extensive investigation was conducted in the core Yangtze River Delta (YRD), China. The detectable concentrations of HCBD in 241 soil samples ranged from 0.07 to 8.47 ng g(-1) dry weight, with an average value of 0.32 ng g(-1) and a detection rate of 59...
November 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29151186/biochar-effects-on-uptake-of-cadmium-and-lead-by-wheat-in-relation-to-annual-precipitation-a-3-year-field-study
#3
Fengfeng Sui, Jing Zuo, De Chen, Lianqing Li, Genxing Pan, David E Crowley
Biochar has been widely studied for its ability to reduce plant uptake of heavy metals by lowering metal bioavailabilities through adsorption and pH-driven fixation reactions. However, the long-term effect of biochar on heavy metal bioavailabilities in alkaline soils under natural redox condition is rarely studied. Here, we report a study examining the effects of biochar on bioavailability and partitioning of cadmium (Cd) and lead (Pb) among different soil fractions over 3 years in a field study with wheat (Triticum aestivum L...
November 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29150956/sewage-sludge-biochars-management-ecotoxicity-mobility-of-heavy-metals-and-soil-microbial-biomass
#4
Monika Mierzwa-Hersztek, Krzysztof Gondek, Agnieszka Klimkowicz-Pawlas, Agnieszka Baran, Tomasz Bajda
Production of biochar from sewage sludge may be a promising solution for sewage sludge management and improvement of soil properties, including carbon dioxide sequestration. The aim of the study was to compare the effects of biochars derived from different sewage sludges on soil physicochemical and biological properties, ecotoxicity and plant yield. Three biochars (produced at a temperature of 300 °C) were applied into sandy acid soil in doses of 0.5%, 1% and 2% (w/w). Depending on the kind and dose, the application of sewage sludge biochars into the soil caused diverse effects on the parameters of soil biological activity (microbial biomass, soil respiration, and value of metabolic quotient)...
November 18, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/29150801/soil-physical-properties-response-to-tillage-practices-during-summer-fallow-of-dryland-winter-wheat-field-on-the-loess-plateau
#5
Jian-Fu Xue, Ai-Xia Ren, Hui Li, Zhi-Qiang Gao, Tian-Qing Du
Soil physical properties are a greatly important part of the soil and indicator of soil quality, which can directly affect soil nutrient turnover and crop yields in dryland. This study was carried out with three tillage practices during the summer fallow season since 2011, including no tillage (NT), plow tillage (PT), and subsoiling (ST) in dryland winter wheat fields of the Loess Plateau. Results showed that soil tillage during the summer fallow had a small effect on soil bulk density (ρ b) in the 0-50-cm soil profile before sowing and after harvesting of winter wheat...
November 17, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29150515/loop-of-streptomyces-feruloyl-esterase-plays-an-important-role-in-its-activity-of-releasing-ferulic-acid-from-biomass
#6
Misugi Uraji, Haruka Tamura, Eiichi Mizohata, Jiro Arima, Kun Wan, Ken'ichi Ogawa, Tsuyoshi Inoue, Tadashi Hatanaka
Feruloyl esterases (FAEs) are key enzymes required for the production of ferulic acid from agricultural biomass. Previously, we identified and characterized R18, an FAE from Streptomyces cinnamoneus NBRC 12852, which showed no sequence similarity with the known FAEs. To determine the region involved in its catalytic activity, we constructed chimeric enzymes using R18 and its homolog (TH2-18) from S. cinnamoneus strain TH-2. Although R18 and TH2-18 showed 74% identity in their primary sequence, the recombinant proteins of these two FAEs (rR18 and rTH2-18) showed very different specific activities toward ethyl ferulate...
November 17, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29150507/divalent-metal-cations-potentiate-the-predatory-capacity-of-amoeba-for-cryptococcus-neoformans
#7
Man Shun Fu, Arturo Casadevall
Among the best studied interaction between soil phagocytic predators and a human pathogenic fungus is that of Acanthamoeba castellanii and Cryptococcus neoformans The experimental conditions used in amoeba-fungal confrontation assays can have major effects on whether the fungus or the protozoan is ascendant in the interaction. In the presence of Mg(2+) and Ca(2+) in PBS, C. neoformans was consistently killed when incubated with A. castellanii. A. castellanii survived better in the presence of Mg(2+) and Ca(2+), even when incubated with C...
November 17, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29150325/ilex-paraguariensis-potential-antioxidant-on-aluminium-toxicity-in-an-experimental-model-of-alzheimer-s-disease
#8
Pâmela M Bortoli, Carla Alves, Eduarda Costa, Ana Paula Vanin, Jéssica R Sofiatti, Diego P Siqueira, Rogério M Dallago, Helen Treichel, Gean Delise L P Vargas, Rosilene R Kaizer
Ilex paraguariensis, yerba mate is a native plant from the southern region of Brazil. Studies showed that yerba mate has an antioxidant potential, which could help to reduce the risk of developing neurodegenerative diseases, as Alzheimer's Disease (AD). It's known that I. paraguariensis grows in acid soils with aluminium (Al), which is bioavailable in these soils. Al has a neurotoxic potential related with the progression of neurological disorders. This study aim was to evaluate the potential of I. paraguariensis in the etiology of AD using strains of Caenorhabditis elegans and the concentration of Al and antioxidants in the yerba mate extract...
November 7, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/29150289/the-cause-of-multiple-sclerosis-is-autoimmune-attack-of-adenosyltransferase-thereby-limiting-adenosylcobalamin-production
#9
J L Boucher
The pathogenesis of multiple sclerosis (MS) begins with an infection by a bacterium from the class of bacteria that produce and utilize adenosylcobalamin (AdoCbl) and possess an adenosyl transferase enzyme (ATR); these bacteria are the exogenous antigens that cause MS. Human ATR is homologous to bacterial ATR and B cells produce anti-ATR antibodies as an autoimmune response thereby reducing the concentration of ATR and thus limiting production of AdoCbl, one of the two bioactive forms of vitamin B12. The next step in MS pathogenesis is a period of subclinical AdoCbl deficiency over a period of many years resulting in production of odd-carbon-number fatty acids that are incorporated into myelin rendering it antigenic...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29150255/effects-of-red-earthworms-eisenia-fetida-on-leachability-of-lead-minerals-in-soil
#10
Armin Kavehei, Grant C Hose, Damian B Gore
Contamination of soils by metals and metalloids is an important environmental problem in many residential and industrial sites around the world. Lead is a common contaminant, which enters the soil through mining, industrial activities and waste disposal. A range of technologies can be used to remediate soil lead, however most remediation technologies adversely affect the environment and particularly soil biota. We have assessed the efficacy of vermiremediation (the use of earthworms for remediation) to reduce water extractable lead concentrations in soil...
November 14, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29149838/genetic-variation-in-populations-of-the-earthworm-lumbricus-rubellus-across-contaminated-mine-sites
#11
Craig Anderson, Luis Cunha, Pierfrancesco Sechi, Peter Kille, David Spurgeon
BACKGROUND: Populations of the earthworm, Lumbricus rubellus, are commonly found across highly contaminated former mine sites and are considered to have under-gone selection for mitigating metal toxicity. Comparison of adapted populations with those found on less contaminated soils can provide insights into ecological processes that demonstrate the long-term effects of soil contamination. Contemporary sequencing methods allow for portrayal of demographic inferences and highlight genetic variation indicative of selection at specific genes...
November 17, 2017: BMC Genetics
https://www.readbyqxmd.com/read/29149751/massive-arrival-of-desalinated-seawater-in-a-regional-urban-water-cycle-a-multi-isotope-study-b-s-o-h
#12
W Kloppmann, Ido Negev, Joseph Guttman, Orly Goren, Ittai Gavrieli, Catherine Guerrot, Christine Flehoc, Marie Pettenati, Avihu Burg
"Man-made" or unconventional freshwater, like desalinated seawater or reclaimed effluents, is increasingly introduced into regional water cycles in arid or semi-arid countries. We show that the breakthrough of reverse osmosis-derived freshwater in the largely engineered water cycle of the greater Tel Aviv region (Dan Region) has profoundly changed previous isotope fingerprints. This new component can be traced throughout the system, from the drinking water supply, through sewage, treated effluents, and artificially recharged groundwater at the largest Soil-Aquifer Treatment system in the Middle East (Shafdan) collecting all the Dan region sewage...
November 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29149750/friends-or-foes-monetized-life-cycle-assessment-and-cost-benefit-analysis-of-the-site-remediation-of-a-former-gas-plant
#13
Lies Huysegoms, Sandra Rousseau, Valérie Cappuyns
Site contamination is a global concern because of the potential risks for human health and ecosystem quality. Every contaminated site has its own specific characteristics and the increased availability and efficiency of remediation techniques makes the choice of remediation alternative increasingly complicated. In this paper an attributional Life Cycle Assessment (LCA) of the secondary environmental impacts of a site remediation is performed and its results are monetized using two different monetization techniques, namely Stepwise 2006 and Ecovalue 08...
November 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29149748/in-situ-long-term-modeling-of-phenanthrene-dynamics-in-an-aged-contaminated-soil-using-the-vsoil-platform
#14
Khaled Brimo, Patricia Garnier, François Lafolie, Geoffroy Séré, Stéphanie Ouvrard
Management and remediation actions of polycyclic aromatic hydrocarbons (PAH) contaminated sites require an accurate knowledge of the dynamics of these chemicals in situ under real conditions. Here we developed, under the Virtual Soil Platform, a global model for PAH that describes the principal physical and biological processes controlling the dynamics of PAH in soil under real climatic conditions. The model was applied first to simulate the observed dynamics of phenanthrene in situ field experimental plots of industrial contaminated soil...
November 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29149742/stability-of-heavy-metals-in-soil-washing-residue-with-and-without-biochar-addition-under-accelerated-ageing
#15
Zhengtao Shen, Deyi Hou, Bin Zhao, Wendi Xu, Yong Sik Ok, Nanthi S Bolan, Daniel S Alessi
Soil washing residue (SWR), which typically concentrates the washed toxic metals and is comprised of high contents of clay particles, may pose risks to the surrounding environment. This study aims to simulate accelerated ageing to assess the stability of selected metals (Cd(2+) (132mg/kg), Cu(2+) (248mg/kg) and Pb(2+) (3470mg/kg)) in a SWR (89.68% of clay) with and without biochar treatment. The soil was incubated under constant moisture and wet-dry cycles (accelerated ageing), respectively, and the mobility and fractions of heavy metals in the soils with and without biochar treatment were examined...
November 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29149723/residual-effects-of-biochar-on-growth-photosynthesis-and-cadmium-uptake-in-rice-oryza-sativa-l-under-cd-stress-with-different-water-conditions
#16
Muhammad Rizwan, Shafaqat Ali, Tahir Abbas, Muhammad Adrees, Muhammad Zia-Ur-Rehman, Muhammad Ibrahim, Farhat Abbas, Muhammad Farooq Qayyum, Rab Nawaz
Soil cadmium (Cd) contamination and drought stress are among the main issues hindering global food security. Biochar has been used to reduce metal uptake by plants and water stress mitigation, but long-term residual effects of biochar under Cd stress at different moisture levels needs to be investigated. A following rice (Oryza sativa L.) was grown after wheat on Cd-contaminated soil amended with different levels of biochar (0, 3.0, and 5.0%, w/w). Thirty five days old plants were irrigated with three moisture levels including zero drought as a control (1-2 cm water layer on soil), mild drought (MD, 50% of soil water holding capacity, WHC), and severe drought (SD, 35% of soil WHC) for an accompanying 35 days...
November 14, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29149700/protective-role-of-biosynthesized-silver-nanoparticles-against-early-blight-disease-in-solanum-lycopersicum
#17
Madhuree Kumari, Shipra Pandey, Arpita Bhattacharya, Aradhana Mishra, C S Nautiyal
Tomato suffers a huge loss every year because of early blight disease. This study focuses on efficient inhibition of Alternaria solani, the causative agent of early blight disease in tomato in vitro and in vivo. Foliar spray of 5 μg/mL of biosynthesized silver nanoparticles in A. solani infected plants resulted in significant increase of 32.58% in fresh weight and 23.52% in total chlorophyll content of tomato as compared to A. solani infected plants. A decrease of 48.57, 30, 39.59 and 28.57% was observed in fungal spore count, lipid peroxidation, proline content and superoxide dismutase respectively in infected tomato plants after treatment with synthesized silver nanoparticles as compared to A...
November 10, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29149646/dependence-of-growth-inhibiting-action-of-increased-planting-density-on-capacity-of-lettuce-plants-to-synthesize-aba
#18
Lidiya B Vysotskaya, Tatyana N Arkhipova, Guzel R Kudoyarova, Stanislav Yu Veselov
Inhibition of lettuce plant growth under increased planting density was accompanied by accumulation of abscisic acid (ABA) in the shoots of competing plants. To check causal relationship between these responses we studied the effect of decreased synthesis of ABA on growth indexes and hormonal balance of lettuce plants under elevated density of their planting (one (single) or three (competing) plants per pot). Herbicide fluridone was used to inhibit ABA synthesis. Preliminary experiments with single plants showed that presence of fluridone in the soil solution at rather low concentration (0...
November 11, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29149640/change-to-ecosystem-properties-through-changing-the-dominant-species-impact-of-pteridium-aquilinum-control-and-heathland-restoration-treatments-on-selected-soil-properties
#19
G Milligan, K E Booth, E S Cox, R J Pakeman, M G Le Duc, L Connor, S Blackbird, R H Marrs
It is well known that soils are influenced by the plant species that grow in them. Here we consider the effects of management-induced changes to plant communities and their soils during restoration within a 20-year manipulative experiment where the aim was to change a late-successional community dominated by the weed, Pteridium aquilinum, to an earlier-successional grass-heath one. The ecological restoration treatments altered the above- and below-ground components of the community substantially. Untreated plots maintained a dense Pteridium cover with little understory vegetation, cutting treatments produce significant reductions of Pteridium, whereas herbicide (asulam) produced significant immediate reductions in Pteridium but regressed towards the untreated plots within 10 years...
November 14, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29149444/morphology-molecular-structure-and-stable-carbon-isotopic-composition-of-black-carbon-bc-in-urban-topsoils
#20
Yutong Zong, Qing Xiao, Shenggao Lu
Urban soils contain significant amounts of black carbon (BC) from biomass and fossil fuel combustion and regard to be a pool of BC. BC in urban soils has multiple effects on environmental processes in urban system, such as global climate change, air quality, and public health. Urban topsoil samples (0-10 cm) were collected from Anshan, Liaoning Province, northeast China, which is one of the most important old steel industrial bases in China. The BC in urban topsoils was extracted using the density method. Their chemical composition, morphology, molecular structure, and stable carbon isotopic composition were examined using elemental analysis, scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), X-ray diffraction (XRD), and stable carbon isotope (δ(13)C)...
November 17, 2017: Environmental Science and Pollution Research International
keyword
keyword
2630
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"