Relevant bibliographies by topics / Soil physico-chemistry

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  2. Dissertations / Theses
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Academic literature on the topic 'Soil physico-chemistry'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Soil physico-chemistry"

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Guigue, J., J. Lévêque, O. Mathieu, et al. "Water-extractable organic matter linked to soil physico-chemistry and microbiology at the regional scale." Soil Biology and Biochemistry 84 (May 2015): 158–67. http://dx.doi.org/10.1016/j.soilbio.2015.02.016.

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Bendra, Brahim, Sanaa Fetouani, Xavier Laffray, Marnik Vanclooster, Mohamed Sbaa, and Lotfi Aleya. "EFFECTS OF IRRIGATION ON SOIL PHYSICO-CHEMISTRY: A CASE STUDY OF THE TRIFFA PLAIN (MOROCCO)." Irrigation and Drainage 61, no. 4 (2012): 507–19. http://dx.doi.org/10.1002/ird.688.

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Whalen, Joann K., Shamim Gul, Vincent Poirier, et al. "Transforming plant carbon into soil carbon: Process-level controls on carbon sequestration." Canadian Journal of Plant Science 94, no. 6 (2014): 1065–73. http://dx.doi.org/10.4141/cjps2013-145.

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Whalen, J. K., Gul, S., Poirier, V., Yanni, S. F., Simpson, M. J., Clemente, J. S., Feng, X., Grayston, S. J., Barker, J., Gregorich, E. G., Angers, D. A., Rochette, P. and Janzen, H. H. 2014. Transforming plant carbon into soil carbon: Process-level controls on carbon sequestration. Can. J. Plant Sci. 94: 1065–1073. Plants figure prominently in efforts to promote C sequestration in agricultural soils, and to mitigate greenhouse gas (GHG) emissions. The objective of the project was to measure the transformations of plant carbon in soil through controlled laboratory experiments, to further understand (1) root-associated CO2 and N2O production during a plant's life cycle, (2) decomposition of plant residues leading to CO2 production, and (3) stabilization and retention of undecomposed plant residues and microbial by-products in the resistant soil C fraction. Experimental plant materials included transgenic near isolines of Zea mays L. and cell wall mutants of Arabidopsis thaliana, selected for their diverse residue chemistry. Phenology, morphology and above-ground biomass affected soil respiration and N2O production in root-associated soils. Mineralization of C and N from incubated plant–soil mixtures was complemented with stable isotope tracing (13C, 15N) and 13C-phospholipid fatty acid analysis. Advanced chemical techniques such as nuclear magnetic resonance spectroscopy and physical separation (particle size and density separation) were used to track the transformations of plant C into stable soil C compounds. Conceptual models were proposed to explain how the plant residue chemistry×soil physico-chemical interaction affects C sequestration. Incorporating single gene mutations affecting lignin biosynthesis into agricultural and bioenergy crops has the potential to alter short- and long-term C cycling in agroecosystems.
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Marañón, T., C. M. Navarro-Fernández, M. T. Domínguez, P. Madejón, and J. M. Murillo. "How the soil chemical composition is affected by seven tree species planted at a contaminated and remediated site." Web Ecology 15, no. 1 (2015): 45–48. http://dx.doi.org/10.5194/we-15-45-2015.

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Abstract. Trees modify the physico-chemical and biological properties of the soil underneath. Here we present results for seven tree species planted at a site that was contaminated by a mine spill – after which soil was cleaned up and remediated – and later was afforested. We studied the chemical composition (24 elements) in five ecosystem compartments (leaves, forest floor, roots, topsoil and deep soil). The variation in chemical concentration was highest at the level of canopy leaves and lowest at deep soil. The identity of tree species significantly affected the composition of all elements in the canopies but none in the deep soil underneath. Although the observed tree effects on topsoil chemistry were weak, the footprint is expected to be reinforced with age of the plantation, contributing to the phytostabilization of contaminating elements and to the carbon sequestration.
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Poch, R. M., B. P. Thomas, R. W. Fitzpatrick, and R. H. Merry. "Micromorphological evidence for mineral weathering pathways in a coastal acid sulfate soil sequence with Mediterranean-type climate, South Australia." Soil Research 47, no. 4 (2009): 403. http://dx.doi.org/10.1071/sr07015.

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Soil micromorphology, using light microscopy and scanning electron microscopy (SEM), was used to describe detailed soil morphological and compositional changes and determine mineral weathering pathways in acid sulfate soils (ASS) from the following 2 contrasting coastal environments in Barker Inlet, South Australia: (i) a tidal mangrove forest with sulfidic material at St Kilda, and (ii) a former supratidal samphire area at Gillman that was drained in 1954 causing sulfuric material to form from sulfidic material. Pyrite framboids and cubes were identified in sulfidic material from both sites and are associated with sapric and hemic materials. Gypsum crystals, interpreted as a product of sulfide oxidation, were observed to have formed in lenticular voids within organic matter in the tidal mangrove soils at St Kilda. Sulfide oxidation was extensive in the drained soil at Gillman, evidenced by the formation of iron oxyhydroxide pseudomorphs (goethite crystallites and framboids) after pyrite and jarosite, and of gypsum crystals. Gypsum crystals occur where a local source of calcium such as shells or calcareous sand is present. Sporadic oxidation episodes are indicated by the formation of iron oxide and jarosite coatings around coarse biogenic voids. These observations indicate that mineral transformation pathways are strongly influenced by soil physico-chemical characteristics (i.e. oxidation rate, Eh, pH, soil solution chemistry, mineralogy, and spatial distribution of sulfides). This information has been used to illustrate the interrelationships of pyrite, carbonate, gypsum, jarosite, and organic matter and help predict soil evolution under changing hydro-geochemical, redoximorphic, and thermal conditions in soils from coastal environments.
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Lee, Byung Jin, Seung Ho Jeon, Shin Woo Lee, Hyun Sik Chun, and Young Son Cho. "Soil Physico-Chemistry and Saponins Content of Platycodon grandiflorum Radix Cultured from Different Sites in Gyeongnam Province." Korean Journal of Medicinal Crop Science 22, no. 6 (2014): 463–68. http://dx.doi.org/10.7783/kjmcs.2014.22.6.463.

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Zabarte-Maeztu, Iñigo, Fleur E. Matheson, Merilyn Manley-Harris, Robert J. Davies-Colley, Megan Oliver, and Ian Hawes. "Effects of Fine Sediment on Seagrass Meadows: A Case Study of Zostera muelleri in Pāuatahanui Inlet, New Zealand." Journal of Marine Science and Engineering 8, no. 9 (2020): 645. http://dx.doi.org/10.3390/jmse8090645.

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Seagrass meadows are vulnerable to fine sediment (mud) pollution, with impacts usually attributed to reduction in submerged light. Here we tested two non-exclusive hypotheses, that mud particles (<63 µm) impact seagrasses through both (1) the light climate and (2) changes in substrate physico-chemistry. We tested these hypotheses in Pāuatahanui Inlet, New Zealand, by comparing seagrass presence, abundance, and health, together with light climate and substrate physico-chemistry at contrasting habitats where (1) seagrass used to thrive but no longer grows (historical seagrass), (2) seagrass still persists (existing seagrass) and (3) seagrass has been present recently, but not currently (potential seagrass). Historical seagrass substrate had significantly higher mud (35% average), bulk density (1.5 g cm−3), porewater ammonium concentration (65 µM), and a more reduced redox profile (negative redox at only 2 cm soil depth) as well as a lower light availability when submerged compared to other habitats, while total daily light exposure differed little between habitats. This suggests that failure of seagrass to recolonize historical seagrass habitat reflects substrate muddiness and consequent unfavorable rhizosphere conditions. Our results provide evidence for the multi-stressor effects of fine sediment on seagrasses, with substrate suitability for seagrass being detrimentally affected even where light exposure seems sufficient.
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Demetriades, A., C. Reimann, M. Birke, et al. "GEOCHEMICAL ATLASES OF EUROPE PRODUCED BY THE EUROGEOSURVEYS GEOCHEMISTRY EXPERT GROUP: STATE OF PROGRESS AND POTENTIAL USES." Bulletin of the Geological Society of Greece 43, no. 5 (2017): 2350. http://dx.doi.org/10.12681/bgsg.11635.

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An ‘Atlas’ is a collection of maps usually published in a book form. A ‘Geochemical Atlas’ is a thematic special purpose atlas with maps describing the geographical distribution of chemical elements and other physico-chemical parameters in different natural sample media, such as stream sediment, overbank or floodplain sediment, stream water, ground water, soil, plants, etc. Because our standard of living and health depend closely on the chemistry of near-surface materials, such atlases that provide data on the state of our environment are important for policy and decision makers, but also for researchers and citizens alike. The EuroGeoSurveys Geochemistry Expert Group is dedicated to provide harmonised multi-purpose geochemical data bases, and has already published the Geochemical Atlas of Europe, and is in the process of preparing the Atlas of Ground water Geochemistry of Europe, and the Atlas of Agricultural and Grazing Land Soils. An important aspect is that all raw data, quality control information, statistics, maps and interpretation texts are freely available for downloading through the internet.
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Rousseau, Guillaume X., Sylvie Rioux, and Daniel Dostaler. "Multivariate effects of plant canopy, soil physico-chemistry and microbiology on Sclerotinia stem rot of soybean in relation to crop rotation and urban compost amendment." Soil Biology and Biochemistry 38, no. 12 (2006): 3325–42. http://dx.doi.org/10.1016/j.soilbio.2006.04.054.

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Robertson, Andy D., Keith Paustian, Stephen Ogle, Matthew D. Wallenstein, Emanuele Lugato, and M. Francesca Cotrufo. "Unifying soil organic matter formation and persistence frameworks: the MEMS model." Biogeosciences 16, no. 6 (2019): 1225–48. http://dx.doi.org/10.5194/bg-16-1225-2019.

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Abstract. Soil organic matter (SOM) dynamics in ecosystem-scale biogeochemical models have traditionally been simulated as immeasurable fluxes between conceptually defined pools. This greatly limits how empirical data can be used to improve model performance and reduce the uncertainty associated with their predictions of carbon (C) cycling. Recent advances in our understanding of the biogeochemical processes that govern SOM formation and persistence demand a new mathematical model with a structure built around key mechanisms and biogeochemically relevant pools. Here, we present one approach that aims to address this need. Our new model (MEMS v1.0) is developed from the Microbial Efficiency-Matrix Stabilization framework, which emphasizes the importance of linking the chemistry of organic matter inputs with efficiency of microbial processing and ultimately with the soil mineral matrix, when studying SOM formation and stabilization. Building on this framework, MEMS v1.0 is also capable of simulating the concept of C saturation and represents decomposition processes and mechanisms of physico-chemical stabilization to define SOM formation into four primary fractions. After describing the model in detail, we optimize four key parameters identified through a variance-based sensitivity analysis. Optimization employed soil fractionation data from 154 sites with diverse environmental conditions, directly equating mineral-associated organic matter and particulate organic matter fractions with corresponding model pools. Finally, model performance was evaluated using total topsoil (0–20 cm) C data from 8192 forest and grassland sites across Europe. Despite the relative simplicity of the model, it was able to accurately capture general trends in soil C stocks across extensive gradients of temperature, precipitation, annual C inputs and soil texture. The novel approach that MEMS v1.0 takes to simulate SOM dynamics has the potential to improve our forecasts of how soils respond to management and environmental perturbation. Ensuring these forecasts are accurate is key to effectively informing policy that can address the sustainability of ecosystem services and help mitigate climate change.
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Dissertations / Theses on the topic "Soil physico-chemistry"

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Keraval, Benoît. "Les métabolismes oxydatifs extracellulaires : une nouvelle vision des processus de minéralisation du carbone organique du sol." Thesis, Clermont-Ferrand 2, 2016. http://www.theses.fr/2016CLF22740/document.

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Phefadu, Kopano Conferance. "Physico-chemical characterization and spatial variability of soils in the research block at University of Limpopo Experimental Farm." Thesis, University of Limpopo, 2015. http://hdl.handle.net/10386/1686.

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Thesis (MSc. (Soil Science)) -- University of Limpopo, 2015<br>There exists a considerable level of spatial variability in soil physical and chemical properties within the research block; and the soils are generally shallow. Of all the measured parameters, electrical conductivity, Bray-1 P, exchangeable potassium, calcium and sodium as well as extractable iron and zinc showed a huge percent of variation across the field. Soil variability maps indicated the degree of variability within the research block. The spatial variability of the characterized parameters was significant across the research block. A correlation study was conducted to investigate the relationship between the measured soil physical and chemical properties. Regular soil analyses should be conducted to avoid failure/delay of experiments. It is recommended that inputs such as irrigation and fertilizer application must be varied based on varying soil conditions across the research block.<br>VLIR project 6 leaders
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Dussaussoy, Benjamin. "Application des tensioactifs biosourcés à la remédiation des sols pollués aux hydrocarbures." Thesis, Compiègne, 2021. http://www.theses.fr/2021COMP2605.

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La compréhension du transport et des interactions de tensioactifs biosourcés en milieu poreux présente un grand intérêt dans les applications environnementales, en particulier pour le contrôle du procédé de dépollution des sols par lavage. L’objectif de ces travaux de thèse est d’étudier le rôle de l’hétérogénéité physique et de l’hydrodynamique du milieu ainsi que de l’impact des propriétés des molécules tensioactives sur les mécanismes de transport et de rétention des tensioactifs dans les milieux poreux saturés en vue de leur dépollution. Une démarche de sélection progressive des produits a permis dans un premier temps une présélection des produits disponibles sur le marché (douze tensioactifs). Ceux-ci ont été analysés et caractérisés en laboratoire. Puis, des expériences de traçage et d’injection de solutions tensioactives ont été menées à l’échelle de colonnes de laboratoire dans deux milieux poreux aux propriétés distinctes et avec les trois tensioactifs ayant le meilleur potentiel pour l’application choisie. Ils ont été comparés au Triton X100, un tensioactif pétrosourcé, référence dans le domaine de la dépollution des sols.Afin de caractériser l’écoulement dans les milieux poreux, un soluté non-réactif a été utilisé comme traceur de l’eau. Des simulations numériques ont été réalisées en utilisant le code de calcul HYDRUS-1D afin de modéliser l’écoulement et d’estimer les paramètres de transport et de dépôt des tensioactifs. Ces résultats ont permis d’émettre des hypothèses sur les mécanismes d’interaction entre les tensioactifs, le polluant hydrophobe et le milieu poreux menant ainsi à une meilleure compréhension du procédé et à l’amélioration de son efficacité<br>Understanding transport and interactions of bio-based surfactants in porous medium is a main issue in environmental applications, in particular for the control of the soil washing remediation process. The objective of this work is to study the role of the physical heterogeneity and hydrodynamics of the medium as well as the impact of the properties of surfactant molecules on the mechanisms of transport and retention of surfactants in a saturated porous media,A progressive product selection process has allowed a preselection of the products available on the market (twelve surfactants). These were analyzed and characterized in the laboratory. Then, tracer experiments and injection of surfactant solutions were carried out at laboratory column scale with two porous media with distinct properties and using the three surfactants having the best potential for the soil washing application. They were compared to Triton XIOO, a petroleum-based surfactant, a reference in soil remediation field.In order to characterize the flow in porous media, a non-reactive solute was used as a water tracer. Numerical simulations were performed using the HYDRUS-ID code to model the flow and estimate the transport and deposition parameters of surfactants. These results made it possible to put forward hypotheses on the mechanisms of interaction between the surfactants, the hydrophobic pollutant and the porous medium, thus they lead to a better understanding o the process and to the improvement of its efficiency
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Rami, Reddy P. Mohan. "Role Of Physico-Chemical Factors In The Heave And Collapse Behaviour Of Laboratory Desiccated Soils." Thesis, 1996. http://etd.iisc.ernet.in/handle/2005/1684.

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Maluleke, H. L. "Microbiological and physico-chemical quality of surface and groundwater sources and its socio-economic impact in the Mpheni - Elim Village, Limpopo Province, South Africa." Diss., 2009. http://hdl.handle.net/11602/1017.

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Books on the topic "Soil physico-chemistry"

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1956-, Hoddinott Keith B., Lamb Robert O. 1943-, ASTM Committee D-18 on Soil and Rock. Subcommittee D18.06 on Physico-Chemical Properties of Soils and Rocks., and Symposium on Physico-Chemical Aspects of Soil, Rock, and Related Materials (1989 : Saint Louis, Mo.), eds. Physico-chemical aspects of soil and related materials. ASTM, 1990.

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Book chapters on the topic "Soil physico-chemistry"

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Bourrié, Guilhem. "Physico-chemistry of the Soil-Water System." In Soils as a Key Component of the Critical Zone 3. John Wiley & Sons, Inc., 2018. http://dx.doi.org/10.1002/9781119438045.ch1.

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Kumar Gautam, Rajneesh, Dimuth Navaratna, Shobha Muthukumaran, Amarendra Singh, Islamuddin, and Nandkishor More. "Humic Substances: Its Toxicology, Chemistry and Biology Associated with Soil, Plants and Environment." In Humic Substance [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.98518.

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In recent decades, scientists in different disciplines have been increasingly concerned about the fate of natural organic matter, and in particular of humic substances (HS). The term humic substances (HS) incorporates refractory autochthonous and terrestrial organic matter in the soil and aquatic ecosystem, and are one of the key fractions of natural organic matter. These substances are important chelators of trace elements constituting complex class of molecular structures that occur naturally, consisting of aggregation and assembly processes in which biomolecules derived from plant and animal residues are gradually transformed through biotic and abiotic tracts. Since these organic compounds are bound by or linked with soil mineral fractions, they must be physically or chemically separated from the inorganic components by an extraction method before their physico-chemical study. This chapter focuses on the chemo-toxicological, molecular aspects of humic compounds and their derivatives such as humins, fulvic acids, humic acids etc., with their agricultural, biomedical, environmental and biochemical applications. In addition to studying their impact on plant physiology and soil microstructure to expand our understanding about humic compounds.
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You might also be interested in the extended bibliographies on the topic 'Soil physico-chemistry' for particular source types:
Journal articles
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