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Journal articles on the topic 'Microbial community of soil, surface and groundwater'

Author: Grafiati

Published: 9 March 2023

Last updated: 19 July 2025

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1

Turky, Azza Sh. "Microbial community in rural shallow groundwater affected by surface contaminated soil." International Journal of Academic Research 4, no. 4 (2012): 188–97. http://dx.doi.org/10.7813/2075-4124.2012/4-4/a.26.

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Villeneuve, Karine, Valérie Turcotte-Blais, and Cassandre Sara Lazar. "Effect of Snowmelt on Groundwater Bacterial Community Composition and Potential Role of Surface Environments as Microbial Seed Bank in Two Distinct Aquifers from the Region of Quebec, Canada." Microorganisms 11, no. 6 (2023): 1526. http://dx.doi.org/10.3390/microorganisms11061526.

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Events of groundwater recharge are associated with changes in the composition of aquifer microbial communities but also abiotic conditions. Modification in the structure of the community can be the result of different environmental condition favoring or hindering certain taxa, or due to the introduction of surface-derived taxa. Yet, in both cases, the local hydrogeochemical settings of the aquifer is likely to affect the amount of variation observed. Therefore, in our study, we used 16S rRNA gene sequencing to assess how microbial communities change in response to snowmelt and the potential co

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Vargha, M., Z. Somlai, Z. Takáts, and K. Márialigeti. "Microbiological impact of atrazine pollution in river sediment and soil." Acta Agronomica Hungarica 52, no. 3 (2004): 297–308. http://dx.doi.org/10.1556/aagr.52.2004.3.11.

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Atrazine is a frequently detected pollutant in agricultural soils, groundwater and surface waters. Microbial degradation was confirmed in soils, and recently several atrazine-degrading bacteria have been isolated. Degradation in aquifers, however, is not well understood, and to date, atrazine degraders have not been isolated from water. In the present study, the impact of atrazine was assessed in agricultural soil and river sediment and the composition of the atrazine-degrading bacterial community in the soil and sediment was compared. Atrazine pollution increased the number and diversity of t

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Ben Ali, Akram R., Francisco F. Omar Holguin, and Manoj K. Shukla. "Soil Microbial Composition and Soil Health of Reverse-Osmosis-Concentrate and Brackish-Groundwater Irrigated Soils in Southern New Mexico." Soil Systems 7, no. 2 (2023): 37. http://dx.doi.org/10.3390/soilsystems7020037.

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The phospholipid fatty acid method was used to determine the shifts in microbial biomass due to irrigation with reverse-osmosis (RO) concentrate (or highly saline reject water) and brackish groundwater (BGW). In this greenhouse study, RO concentrate and BGW were applied to irrigate pecan trees for 8 months for two consecutive seasons. The objectives of the study were to (i) evaluate how irrigation with RO concentrate and BGW impacts soil microbial composition in pecan rhizospheres using microbial phospholipid fatty acid (PLFA) biomarkers as indicators, and (ii) evaluate its implications on soi

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Aislabie, J., J. Ryburn, and A. Sarmah. "Culturable microbes in shallow groundwater underlying ornithogenic soil of Cape Hallett, AntarcticaThis article is one of a selection of papers in the Special Issue on Polar and Alpine Microbiology." Canadian Journal of Microbiology 55, no. 1 (2009): 12–20. http://dx.doi.org/10.1139/w08-118.

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The objective of this study was to investigate the culturable psychrotolerant microbial community in groundwater from Seabee Hook, Antarctica. Shallow groundwater can be present in coastal regions at higher latitudes during the Antarctic summer. Perched groundwater atop ice-cemented permafrost occurs on Seabee Hook, Cape Hallett, at depths from 5 to 80 cm below the soil surface. Compared with terrestrial water from other sites in Antarctica, the groundwater was high in salt and nutrients, reflecting proximity to the sea and ornithogenic soil. Microbial communities in groundwater samples from S

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Wakelin, Steven A., Paul N. Nelson, John D. Armour, Velupillai Rasiah, and Matthew J. Colloff. "Bacterial community structure and denitrifier (nir-gene) abundance in soil water and groundwater beneath agricultural land in tropical North Queensland, Australia." Soil Research 49, no. 1 (2011): 65. http://dx.doi.org/10.1071/sr10055.

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We explored the microbial ecology of water draining through the soil (lysimeter samples) and in the shallow aquifers (bore samples) underlying sugarcane and banana fields near the Great Barrier Reef (GBR), Australia. Lysimeter and bore water samples were collected and analysed chemically and with DNA fingerprinting methods (PCR-DGGE and clone library sequencing) to characterise the structure of the bacterial community. Bacterial communities in soil water and bore water were distinct (P < 0.05), and a primary factor linked with bacterial community structure was water pH (P < 0.05), partic

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Singh, Anusha, Tanja Shabarova, and Paul Bulzu. "Different components of interconnected karst environment select for highly distinct microbial communities." ARPHA Conference Abstracts 5 (July 14, 2022): e89679. https://doi.org/10.3897/aca.5.e89679.

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Karst environments, formed by dissolution of rocks, present a unique opportunity to study groundwater and surface water as a single dynamic system. We aimed to explore the hydrological connections and identify shared microbiome between different components of this complex landscape (terrestrial, surface-subsurface freshwater networks and two different lake strata) on example of karst landscape at north shore of Lake Thun (CH).52 samples from soil and 87 from the freshwater network were collected during low hydrological conditions. Additionally, 43 samples from 13 different lakes across Europe

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Chen, Zhichao, Jialiang Luo, Yiheng Jiao, Xiaoxuan Lyu, Shidong Wang, and Hebing Zhang. "Soil Characteristics and Response Mechanism of the Microbial Community in a Coal–Grain Compound Area with High Groundwater Levels." Agronomy 14, no. 9 (2024): 1993. http://dx.doi.org/10.3390/agronomy14091993.

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Coal mining has led to escalating ecological and environmental issues in significant coal and grain production areas, posing a severe danger to food security. This study examines the disturbance patterns of soil factors and microbial communities in coal and grain production areas, and attempts to understand the impact of subsidence and water accumulation stress on soil characteristics and microbial communities in coal mining subsidence areas with high subsidence levels. Five specific regions of Zhao Gu Yi Mine, situated in Henan Province and under the ownership of Jiaozuo Coal Group, were chos

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Moore-Kucera, Jennifer, Anita Nina Azarenko, Lisa Brutcher, Annie Chozinski, David D. Myrold, and Russell Ingham. "In Search of Key Soil Functions to Assess Soil Community Management for Sustainable Sweet Cherry Orchards." HortScience 43, no. 1 (2008): 38–44. http://dx.doi.org/10.21273/hortsci.43.1.38.

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Organic growers are required to maintain or improve soil chemical, biological, and physical properties and thus need to integrate biological processes into fertility management. However, few guidelines exist for satisfying tree nutrient demands ecologically. Sound nitrogen (N) management is a key component for overall orchard productivity whereas poor N management may result in multiple environmental impacts, including runoff to surface or leaching to groundwater sources. Many growers substitute synthetic inputs with rapid-release, approved N fertilizers that have little effect on long-term so

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Pérez-Lucas, Gabriel, and Simón Navarro. "How Pharmaceutical Residues Occur, Behave, and Affect the Soil Environment." Journal of Xenobiotics 14, no. 4 (2024): 1343–77. http://dx.doi.org/10.3390/jox14040076.

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Many pharmaceuticals (PhMs), compounds for the treatment or prevention of diseases in humans and animals, have been identified as pollutants of emerging concern (PECs) due to their wide environmental distribution and potential adverse impact on nontarget organisms and populations. They are often found at significant levels in soils due to the continuous release of effluent and sludge from wastewater treatment plants (WWTPs), the release of which occurs much faster than the removal of PhMs. Although they are generally present at low environmental concentrations, conventional wastewater treatmen

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Mubeen, Bismillah, Ammarah Hasnain, Jie Wang, et al. "Current Progress and Open Challenges for Combined Toxic Effects of Manufactured Nano-Sized Objects (MNO’s) on Soil Biota and Microbial Community." Coatings 13, no. 1 (2023): 212. http://dx.doi.org/10.3390/coatings13010212.

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Soil is a porous matrix containing organic matter and minerals as well as living organisms that vary physically, geographically, and temporally. Plants choose a particular microbiome from a pool of soil microorganisms which helps them grow and stay healthy. Many ecosystem functions in agrosystems are provided by soil microbes just like the ecosystem of soil, the completion of cyclic activity of vital nutrients like C, N, S, and P is carried out by soil microorganisms. Soil microorganisms affect carbon nanotubes (CNTs), nanoparticles (NPs), and a nanopesticide; these are called manufactured nan

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URycki, Dawn R., Stephen P. Good, Byron C. Crump, Natalie C. Ceperley, and J. Renée Brooks. "Microbial community storm dynamics signal sources of “old” stream water." PLOS ONE 19, no. 9 (2024): e0306896. http://dx.doi.org/10.1371/journal.pone.0306896.

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Accurate characterization of the movement of water through catchments, particularly during precipitation event response, is critical for hydrological efforts such as contaminant transport modeling or prediction of extreme flows. Abiotic hydrogeochemical tracers are commonly used to track sources and ages of surface waters but provide limited details about transit pathways or the spatial dynamics of water storage and release. Alternatively, biotic material in streams is derived from thousands of taxa originating from a variety of environments within watersheds, including groundwater, sediment,

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Lauzon, Jocelyn, Daniel Caron, and Cassandre Sara Lazar. "The Saint-Leonard Urban Glaciotectonic Cave Harbors Rich and Diverse Planktonic and Sedimentary Microbial Communities." Microorganisms 12, no. 9 (2024): 1791. http://dx.doi.org/10.3390/microorganisms12091791.

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The terrestrial subsurface harbors unique microbial communities that play important biogeochemical roles and allow for studying a yet unknown fraction of the Earth’s biodiversity. The Saint-Leonard cave in Montreal City (Canada) is of glaciotectonic origin. Its speleogenesis traces back to the withdrawal of the Laurentide Ice Sheet 13,000 years ago, during which the moving glacier dislocated the sedimentary rock layers. Our study is the first to investigate the microbial communities of the Saint-Leonard cave. By using amplicon sequencing, we analyzed the taxonomic diversity and composition of

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Herrmann, Martina, Anna Rusznyák, Denise M. Akob, et al. "Large Fractions of CO2-Fixing Microorganisms in Pristine Limestone Aquifers Appear To Be Involved in the Oxidation of Reduced Sulfur and Nitrogen Compounds." Applied and Environmental Microbiology 81, no. 7 (2015): 2384–94. http://dx.doi.org/10.1128/aem.03269-14.

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ABSTRACTThe traditional view of the dependency of subsurface environments on surface-derived allochthonous carbon inputs is challenged by increasing evidence for the role of lithoautotrophy in aquifer carbon flow. We linked information on autotrophy (Calvin-Benson-Bassham cycle) with that from total microbial community analysis in groundwater at two superimposed—upper and lower—limestone groundwater reservoirs (aquifers). Quantitative PCR revealed that up to 17% of the microbial population had the genetic potential to fix CO2via the Calvin cycle, with abundances ofcbbMandcbbLgenes, encoding Ru

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Balcom, Ian N., Heather Driscoll, James Vincent, and Meagan Leduc. "Metagenomic analysis of an ecological wastewater treatment plant’s microbial communities and their potential to metabolize pharmaceuticals." F1000Research 5 (July 28, 2016): 1881. http://dx.doi.org/10.12688/f1000research.9157.1.

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Pharmaceuticals and other micropollutants have been detected in drinking water, groundwater, surface water, and soil around the world. Even in locations where wastewater treatment is required, they can be found in drinking water wells, municipal water supplies, and agricultural soils. It is clear conventional wastewater treatment technologies are not meeting the challenge of the mounting pressures on global freshwater supplies. Cost-effective ecological wastewater treatment technologies have been developed in response. To determine whether the removal of micropollutants in ecological wastewate

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Schütz, Kirsten, Ellen Kandeler, Peter Nagel, Stefan Scheu, and Liliane Ruess. "Functional microbial community response to nutrient pulses by artificial groundwater recharge practice in surface soils and subsoils." FEMS Microbiology Ecology 72, no. 3 (2010): 445–55. http://dx.doi.org/10.1111/j.1574-6941.2010.00855.x.

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Sonthiphand, Prinpida, Supeerapat Kraidech, Saowarod Polart, et al. "Arsenic speciation, the abundance of arsenite-oxidizing bacteria and microbial community structures in groundwater, surface water, and soil from a gold mine." Journal of Environmental Science and Health, Part A 56, no. 7 (2021): 769–85. http://dx.doi.org/10.1080/10934529.2021.1927421.

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18

Bolan, N. S., and V. P. Duraisamy. "Role of inorganic and organic soil amendments on immobilisation and phytoavailability of heavy metals: a review involving specific case studies." Soil Research 41, no. 3 (2003): 533. http://dx.doi.org/10.1071/sr02122.

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Soil is not only considered as a 'source' of nutrients for plant growth, but also as a 'sink' for the removal of contaminants from industrial and agricultural waste materials. The origin of heavy metal contamination of soils may be anthropogenic as well as geogenic. With greater public awareness of the implications of contaminated soils on human and animal health, there has been increasing interest amongst the scientific community in developing cost-effective and community-acceptable remediation technologies for contaminated sites. Unlike organic contaminants, most metals do not undergo microb

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Rigoni, Hannah, Helena Bilandžija, and Engel Annette Summers. "Chemolithoautotrophic Organic Matter Contributions to Subterranean Food Webs Dominated by Filter-feeders." ARPHA Conference Abstracts 6 (October 17, 2023): e109094. https://doi.org/10.3897/aca.6.e109094.

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IntroductionMost groundwater and cave ecosystems depend on an influx of allochthonous, surface-derived organic matter sourced by diffuse flow through overlying rock and soil or by localized flow from the surface into sinkholes or entrances. The amount of organic matter entering the subsurface is usually low, resulting in oligotrophic conditions and food scarcity that affect community members' dispersal and colonization patterns. In situ, chemolithoautotrophically-produced organic matter has the potential to supplement organic matter pools in the subsurface, especially if the surface and subsur

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Morse, Kendall V., Dylan R. Richardson, Teresa L. Brown, Robert D. Vangundy, and Aubrey Bruce Cahoon. "Longitudinal metabarcode analysis of karst bacterioplankton microbiomes provide evidence of epikarst to cave transport and community succession." PeerJ 9 (March 8, 2021): e10757. http://dx.doi.org/10.7717/peerj.10757.

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Caves are often assumed to be static environments separated from weather changes experienced on the surface. The high humidity and stability of these subterranean environments make them attractive to many different organisms including microbes such as bacteria and protists. Cave waters generally originate from the surface, may be filtered by overlying soils, can accumulate in interstitial epikarst zones underground, and emerge in caves as streams, pools and droplets on speleothems. Water movement is the primary architect of karst caves, and depending on the hydrologic connectivity between surf

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Nakoh, Eric, and Allison Enright. "In situ sensor-based monitoring strategies for biogeochemical reactions in mine tailings environments." ARPHA Conference Abstracts 6 (October 13, 2023): e108130. https://doi.org/10.3897/aca.6.e108130.

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Natural resource extraction and ore processing have significant environmental impacts, such as the generation of wastewater, waste rock and tailings. These waste products are often detrimental to ecosystems, and negatively impact surface and groundwater bodies, often necessitating remediation treatments and long-term management of sites by operators, or, where operators have abandoned a contaminated site, by regulators and government agencies. Such cleanup and monitoring efforts regularly continue for decades after a site is closed.Monitoring efforts usually serve two purposes: characterizing

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Barba, Carme, Albert Folch, Núria Gaju, et al. "Microbial community changes induced by Managed Aquifer Recharge activities: linking hydrogeological and biological processes." Hydrology and Earth System Sciences 23, no. 1 (2019): 139–54. http://dx.doi.org/10.5194/hess-23-139-2019.

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Abstract. Managed Aquifer Recharge (MAR) is a technique used worldwide to increase the availability of water resources. We study how MAR modifies microbial ecosystems and its implications for enhancing biodegradation processes to eventually improve groundwater quality. We compare soil and groundwater samples taken from a MAR facility located in NE Spain during recharge (with the facility operating continuously for several months) and after 4 months of no recharge. The study demonstrates a strong correlation between soil and water microbial prints with respect to sampling location along the map

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Villeneuve, Karine, Michel Violette, and Cassandre Sara Lazar. "From Recharge, to Groundwater, to Discharge Areas in Aquifer Systems in Quebec (Canada): Shaping of Microbial Diversity and Community Structure by Environmental Factors." Genes 14, no. 1 (2022): 1. http://dx.doi.org/10.3390/genes14010001.

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Groundwater recharge and discharge rates and zones are important hydrogeological characteristics of aquifer systems, yet their impact on the formation of both subterranean and surface microbiomes remains largely unknown. In this study, we used 16S rRNA gene sequencing to characterize and compare the microbial community of seven different aquifers, including the recharge and discharge areas of each system. The connectivity between subsurface and surface microbiomes was evaluated at each site, and the temporal succession of groundwater microbial communities was further assessed at one of the sit

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Groult, Benjamin, Vicky St-Jean, and Cassandre Sara Lazar. "Linking Groundwater to Surface Discharge Ecosystems: Archaeal, Bacterial, and Eukaryotic Community Diversity and Structure in Quebec (Canada)." Microorganisms 11, no. 7 (2023): 1674. http://dx.doi.org/10.3390/microorganisms11071674.

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Aquifer systems are composed of water flowing from surface recharge areas, to the subsurface and back to the surface in discharge regions. Groundwater habitats harbor a large microbial biomass and diversity, potentially contributing to surface aquatic ecosystems. Although this contribution has been widely studied in marine environments, very little is known about the connection between underground and surface microbial communities in freshwater settings. Therefore, in this study, we used amplicon sequencing to analyze the archaeal, bacterial, and eukaryotic community diversity and structure in

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Ramachandra, T. V. "Innovative ecological approaches to ensure clean and adequate water for all." Journal of Environmental Biology 43, no. 03 (2022): i—ii. http://dx.doi.org/10.22438/jeb/43/3/editorial.

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The Western Ghats, a range of ancient hills extends between 8° N and 21° N latitude, and 73° E and 77° E longitude(from the tip of peninsular India at Kanyakumari to Gujarat). The Western Ghats runs parallel to the west coast of India, covering approximately 160,000 sq. km, which constitutes less than 5% of India's geographical extent. Numerous streams originate in the Western Ghats, which drain millions of hectares, ensuring water and food security for 245 million people and hence are aptly known as the water tower of peninsular India(Ramachandra and Bharath, 2019; Bharath et al., 2021). The

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DeAngelis, Kristen M., Cindy H. Wu, Harry R. Beller, et al. "PCR Amplification-Independent Methods for Detection of Microbial Communities by the High-Density Microarray PhyloChip." Applied and Environmental Microbiology 77, no. 18 (2011): 6313–22. http://dx.doi.org/10.1128/aem.05262-11.

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ABSTRACTEnvironmental microbial community analysis typically involves amplification by PCR, despite well-documented biases. We have developed two methods of PCR-independent microbial community analysis using the high-density microarray PhyloChip: direct hybridization of 16S rRNA (dirRNA) or rRNA converted to double-stranded cDNA (dscDNA). We compared dirRNA and dscDNA communities to PCR-amplified DNA communities using a mock community of eight taxa, as well as experiments derived from three environmental sample types: chromium-contaminated aquifer groundwater, tropical forest soil, and seconda

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Jacobsen, Carsten Suhr, Susanne Elmholt, Carsten Bagge Jensen, Pia Bach Jakobsen, and Mikkel Bender. "Steam treatment of contaminated groundwater aquifers – development of pathogenic micro-organisms in soil." Geological Survey of Denmark and Greenland (GEUS) Bulletin 7 (July 29, 2005): 37–40. http://dx.doi.org/10.34194/geusb.v7.4829.

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Steam treatment of contaminated soil and aquifer sediment is a promising method of cleaning soil. The treatment is based on steam injection into a water saturated porous aquifer (Gudbjerg et al. 2004), by which the heat transfers the contaminants into the vapour phase, allowing entrapment in an active carbon filter connected to a large vacuum suction device. The treatment is effective against several important groundwater contaminants, including pentachlorophenole and perchloroethylene, typically found in association with industrial processes or dry cleaning facilities. Furthermore, as an exam

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Wang, Yian, Chao Long, Li Yin, et al. "Effects of simulated acid rain on hydrochemical factors and microbial community structure in red soil aquifers." RSC Advances 14, no. 7 (2024): 4482–91. http://dx.doi.org/10.1039/d3ra08820k.

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Pereira, Marlon Correa, Roisin O’Riordan, and Carly Stevens. "Urban soil microbial community and microbial-related carbon storage are severely limited by sealing." Journal of Soils and Sediments 21, no. 3 (2021): 1455–65. http://dx.doi.org/10.1007/s11368-021-02881-7.

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Abstract Purpose Urbanisation causes changes in land use, from natural or rural to urban, leading to the sealing of soil and the replacement of vegetation by buildings, roads and pavements. The sealing process impacts soil properties and services and can lead to negative consequences for microbial attributes and processes in soil. At present, information about the microbial community following soil sealing is limited. As such, we investigated how changes in soil physical and chemical properties caused by sealing affect the soil microbial community and soil ecosystem services. Material and meth

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Ryabova, A. S., L. Y. Kuzmina, and N. F. Galimzyanova. "MICROBIAL COMMUNITY OF THE ASKINSKAYA CAVE." ÈKOBIOTEH 4, no. 3 (2021): 186–94. http://dx.doi.org/10.31163/2618-964x-2021-4-3-186-194.

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The cave Askinskaya (Askynskaya, Ledyanaya) contains the largest perennial hydrogenic ice in the territory of the Southern Urals. It is shown that the soil and horizontal hydrogenic ice are the main reservoirs for storing microorganisms in the cave, and the microbial pool is replenished mainly due to recreational load, but natural ways – rain, melt water and air from the surface also make a certain contribution. From all the ecotopes of the cave (soil, water occurrences, rock surfaces and aerial environment), 72 species of microscopic fungi (D – 0.69), sterile forms and yeast were isolated. Ye

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Wu, Tiehang, Ashley Gray, Gan Liu, Hilary Kaminski, Bolanle Osi Efa, and Doug P. Aubrey. "Groundwater Depth Overrides Tree-Species Effects on the Structure of Soil Microbial Communities Involved in Nitrogen Cycling in Plantation Forests." Forests 11, no. 3 (2020): 275. http://dx.doi.org/10.3390/f11030275.

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Microbial communities found in soil ecosystems play important roles in decomposing organic materials and recycling nutrients. A clear understanding on how biotic and abiotic factors influence the microbial community and its functional role in ecosystems is fundamental to terrestrial biogeochemistry and plant production. The purpose of this study was to investigate microbial communities and functional genes involved in nitrogen cycling as a function of groundwater depth (deep and shallow), tree species (pine and eucalypt), and season (spring and fall). Soil fungal, bacterial, and archaeal commu

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Patel, Divya, Vincent Blouin, Jamie Kirkpatrick, and Cassandre Sara Lazar. "Rock Surface Colonization by Groundwater Microorganisms in an Aquifer System in Quebec, Canada." Diversity 16, no. 7 (2024): 374. http://dx.doi.org/10.3390/d16070374.

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Aquifers are rich in microbial diversity. However, there is a lack of information about sessile communities in these environments because of the difficulty in sampling fresh in situ rock surfaces. Thus, this study’s objective was to better understand the sessile community in a fractured aquifer. Additionally, the impact of the rock mineral composition on microbial community composition during colonization was explored. Using a system of bioreactors, we recreated the environmental conditions of a 1.5 m deep aquifer in Covey Hill (QC, Canada) using groundwater samples collected from the site. We

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Di, H. J., G. P. Sparling, R. Lee, and G. N. Magesan. "The effect of mineralisation rates of atrazine in surface and subsurface soils on its groundwater contamination potential." Soil Research 39, no. 1 (2001): 175. http://dx.doi.org/10.1071/sr00004.

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Atrazine is a widely used herbicide for weed control and has been found in groundwater in many countries. The groundwater contamination potential of atrazine in 2 soils on the east coast of the North Island of New Zealand was modelled under 3 scenarios. Scenario 1 used atrazine mineralisation rates as determined in an incubation experiment which showed higher rates of mineralisation in subsoil layers than in surface soils. Scenario 2 assumed a decreasing mineralisation rate with soil depth in proportion to changes in microbial biomass. Scenario 3 used a logistic model to describe atrazine mine

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Afkairin, Antisar, Mary Stromberger, Heather Storteboom, Allison Wickham, David G. Sterle, and Jessica G. Davis. "Soil Microbial Community Responses to Cyanobacteria versus Traditional Organic Fertilizers." Agriculture 13, no. 10 (2023): 1902. http://dx.doi.org/10.3390/agriculture13101902.

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This study explores the impact of diverse organic fertilizers, including a non-traditional cyanobacteria-based alternative, on soil microbial communities in varying soil types and depths. The research aims to elucidate the effects of these fertilizers on soil microorganisms in certified organic cucumber (Cucumis sativus) field and peach (Prunus persica) orchard settings. Fertilizers were applied either on the soil surface or banded 5 cm below the soil surface, and microbial ester-linked fatty acids (EL-FAMEs) were analyzed in collected soils. Notably, cyanobacteria and Neptune hydrolyzed fish

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Cheng, C., D. Zhao, D. Lv, S. Li, and G. Du. "Comparative study on microbial community structure across orchard soil, cropland soil, and unused soil." Soil and Water Research 12, No. 4 (2017): 237–45. http://dx.doi.org/10.17221/177/2016-swr.

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We examined the effects of three different soil conditions (orchard soil, cropland soil, unused soil) on the functional diversity of soil microbial communities. The results first showed that orchard and cropland land use significantly changed the distribution and diversity of soil microbes, particularly at surface soil layers. The richness index (S) and Shannon diversity index (H) of orchard soil microbes were significantly higher than the indices of the cropland and unused soil treatments in the 0–10 cm soil layer, while the S and H indices of cropland soil microbes were the highest in 10–20

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Mathew, Reji P., Yucheng Feng, Leonard Githinji, Ramble Ankumah, and Kipling S. Balkcom. "Impact of No-Tillage and Conventional Tillage Systems on Soil Microbial Communities." Applied and Environmental Soil Science 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/548620.

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Soil management practices influence soil physical and chemical characteristics and bring about changes in the soil microbial community structure and function. In this study, the effects of long-term conventional and no-tillage practices on microbial community structure, enzyme activities, and selected physicochemical properties were determined in a continuous corn system on a Decatur silt loam soil. The long-term no-tillage treatment resulted in higher soil carbon and nitrogen contents, viable microbial biomass, and phosphatase activities at the 0–5 cm depth than the conventional tillage treat

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Smith, Heidi, Lauren Lui, Anna Zelaya, et al. "Biomass distribution and activity of respective subsurface sediments and groundwater within a shallow subsurface ecosystem." ARPHA Conference Abstracts 6 (October 17, 2023): e108389. https://doi.org/10.3897/aca.6.e108389.

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Subsurface environments represent diverse microbial communities responsible for mediating biogeochemical cycles linked to the turnover of organic and inorganic carbon important to groundwater used by human society for consumption, irrigation, agriculture and industry. Within the different sediment environments, microorganisms typically reside in two distinct phases (planktonic or biofilm), and significant differences in community composition, structure and activity between free-living and attached communities are commonly accepted. However, largely due to sampling constraints and the challenge

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Akari, Maiko, and Yoshitaka Uchida. "Survival Rates of Microbial Communities from Livestock Waste to Soils: A Comparison between Compost and Digestate." Applied and Environmental Soil Science 2021 (January 29, 2021): 1–15. http://dx.doi.org/10.1155/2021/6645203.

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Livestock waste-based products, such as composted manure, are often used in crop production systems. The products’ microbial characteristics differ depending on animal waste treatment methods used (e.g., biogas production/composting). The question remains whether different livestock waste-based products differently impact soil microbiota. A pot experiment with five treatments (control, chemical fertilizer, digestate + chemical fertilizer, wheat straw compost + chemical fertilizer, and woodchip compost + chemical fertilizer) was conducted to compare the survival rates of microbial communities f

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Edenborn, S. L., A. J. Sexstone, Y. Sutanto, and J. A. Chapman. "Relationships among Contrasting Measurements of Microbial Dynamics in Pasture and Organic Farm Soils." Applied and Environmental Soil Science 2011 (2011): 1–10. http://dx.doi.org/10.1155/2011/537459.

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Soil bacteria exhibit short-term variations in community structure, providing an indication of anthropogenic disturbances. In this study, microbial biomass carbon (MBC), potentially mineralizable nitrogen (PMN), community level physiological profiling (CLPP), and culture-dependent DGGE (CD DGGE) fingerprinting of the 16S rRNA gene were used to compare microbial communities in organic farm and pasture soils subjected to differing agronomic treatments. Correlation analyses revealed significant relationships between MBC, PMN, and data derived from microbial community analyses. All measures separa

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Moore, Anni, Melissa Lenczewski, Rosa Maria Leal-Bautista, and Melvin Duvall. "Groundwater microbial diversity and antibiotic resistance linked to human population density in Yucatan Peninsula, Mexico." Canadian Journal of Microbiology 66, no. 1 (2020): 46–58. http://dx.doi.org/10.1139/cjm-2019-0173.

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Microbial community composition in selected karst groundwater sites in the Yucatan Peninsula, Mexico, was assessed to determine the environmental variables influencing groundwater microbial diversity. The karst aquifer system is a groundwater-dependent ecosystem and is the world’s second largest underwater karst cave system. The area’s geology allows precipitation to infiltrate into the groundwater system and prevents accumulation of surface water; as such, groundwater is the only source of fresh water on the peninsula. The sampling locations consisted of three karst sinkholes that extend thro

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Wojcik, Robin, Johanna Donhauser, Beat Frey, et al. "Linkages between geochemistry and microbiology in a proglacial terrain in the High Arctic." Annals of Glaciology 59, no. 77 (2018): 95–110. http://dx.doi.org/10.1017/aog.2019.1.

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ABSTRACTProglacial environments are ideal for studying the development of soils through the changes of rocks exposed by glacier retreat to weathering and microbial processes. Carbon (C) and nitrogen (N) contents as well as soil pH and soil elemental compositions are thought to be dominant factors structuring the bacterial, archaeal and fungal communities in the early stages of soil ecosystem formation. However, the functional linkages between C and N contents, soil composition and microbial community structures remain poorly understood. Here, we describe a multivariate analysis of geochemical

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Bagordo, Francesco, Silvia Brigida, Tiziana Grassi, et al. "Factors Influencing Microbial Contamination of Groundwater: A Systematic Review of Field-Scale Studies." Microorganisms 12, no. 5 (2024): 913. http://dx.doi.org/10.3390/microorganisms12050913.

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Pathogenic microorganisms released onto the soil from point or diffuse sources represent a public health concern. They can be transported by rainwater that infiltrates into subsoil and reach the groundwater where they can survive for a long time and contaminate drinking water sources. As part of the SCA.Re.S. (Evaluation of Health Risk Related to the Discharge of Wastewater on the Soil) project, we reviewed a selection of field-scale studies that investigated the factors that influenced the fate of microorganisms that were transported from the ground surface to the groundwater. A total of 24 s

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Zosso, Cyrill U., Nicholas O. E. Ofiti, Jennifer L. Soong, et al. "Whole-soil warming decreases abundance and modifies the community structure of microorganisms in the subsoil but not in surface soil." SOIL 7, no. 2 (2021): 477–94. http://dx.doi.org/10.5194/soil-7-477-2021.

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Abstract. The microbial community composition in subsoils remains understudied, and it is largely unknown whether subsoil microorganisms show a similar response to global warming as microorganisms at the soil surface do. Since microorganisms are the key drivers of soil organic carbon decomposition, this knowledge gap causes uncertainty in the predictions of future carbon cycling in the subsoil carbon pool (> 50 % of the soil organic carbon stocks are below 30 cm soil depth). In the Blodgett Forest field warming experiment (California, USA) we investigated how +4 ∘C warming in the whole-soil

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Sipilä, Timo P., Kim Yrjälä, Laura Alakukku, and Ansa Palojärvi. "Cross-Site Soil Microbial Communities under Tillage Regimes: Fungistasis and Microbial Biomarkers." Applied and Environmental Microbiology 78, no. 23 (2012): 8191–201. http://dx.doi.org/10.1128/aem.02005-12.

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ABSTRACTThe exploitation of soil ecosystem services by agricultural management strategies requires knowledge of microbial communities in different management regimes. Crop cover by no-till management protects the soil surface, reducing the risk of erosion and nutrient leaching, but might increase straw residue-borne and soilborne plant-pathogenic fungi. A cross-site study of soil microbial communities andFusariumfungistasis was conducted on six long-term agricultural fields with no-till and moldboard-plowed treatments. Microbial communities were studied at the topsoil surface (0 to 5 cm) and b

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Liu, Qilong, Liquan Song, Siyuan Zou, Xiaodong Wu, and Shuying Zang. "Distribution Characteristics and Driving Factors of the Bacterial Community Structure in the Soil Profile of a Discontinuous Permafrost Region." Forests 15, no. 8 (2024): 1456. http://dx.doi.org/10.3390/f15081456.

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Global warming leads to the melting of permafrost, affects changes in soil microbial community structures and related functions, and contributes to the soil carbon cycle in permafrost areas. Located at the southern edge of Eurasia’s permafrost region, the Greater Khingan Mountains are very sensitive to climate change. Therefore, by analyzing the bacterial community structure, diversity characteristics, and driving factors of soil profiles (active surface layer, active deep layer, transition layer, and permafrost layer) in this discontinuous permafrost region, this research provides support for

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Ma, L., C. Guo, X. Lü, S. Yuan, and R. Wang. "Do climate factors govern soil microbial community composition and biomass at a regional scale?" Biogeosciences Discussions 11, no. 12 (2014): 17729–56. http://dx.doi.org/10.5194/bgd-11-17729-2014.

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Abstract. Soil microbial communities play important role in organic matter decomposition, nutrient cycling and vegetation dynamic. However, little is known about factors driving soil microbial community composition at large scales. The objective of this study was to determine whether climate dominates among environmental factors governing microbial community composition and biomass at a regional scale. Here, we compared soil microbial communities using phospholipid fatty acid method across 7 land use types from 23 locations in North-East China Transect (850 km x 50 km). The results showed that

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Fang, Lu, Haibo Hu, Jianyu Chen, Yuyang Gong, and Ziyi Zhu. "Mechanism of the Effects of Phyllostachys edulis Invasion on the Soil Microbial Community in Quercus acutissima Forests." Forests 15, no. 7 (2024): 1170. http://dx.doi.org/10.3390/f15071170.

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In recent years, the invasion of Phyllostachys edulis has intensified. This study selected Phyllostachys edulis, Phyllostachys edulis–Quercus acutissima mixed and Quercus acutissima forest areas and analyzed the changes in soil bulk density, porosity, water-holding capacity, pH, soil organic carbon (SOC), soil readily oxidized organic carbon (ROC), soluble organic carbon (DOC) and microbial biomass carbon (SMBC). Then, we obtained the Chao index, Shannon index and Simpson index and analyzed the relationship between microbial α diversity, β diversity and community composition, abundance and str

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Li, Yaying, Juan Wang, Fuxiao Pan, Stephen James Chapman, and Huaiying Yao. "Soil nitrogen availability alters rhizodeposition carbon flux into the soil microbial community." Journal of Soils and Sediments 16, no. 5 (2016): 1472–80. http://dx.doi.org/10.1007/s11368-015-1337-6.

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Erktan, Amandine, Matthias C. Rillig, Andrea Carminati, Alexandre Jousset, and Stefan Scheu. "Protists and collembolans alter microbial community composition, C dynamics and soil aggregation in simplified consumer–prey systems." Biogeosciences 17, no. 20 (2020): 4961–80. http://dx.doi.org/10.5194/bg-17-4961-2020.

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Abstract. Microbes play an essential role in soil functioning including biogeochemical cycling and soil aggregate formation. Yet, a major challenge is to link microbes to higher trophic levels and assess consequences for soil functioning. Here, we aimed to assess how microbial consumers modify microbial community composition (PLFA markers), as well as C dynamics (microbial C use, SOC concentration and CO2 emission) and soil aggregation. We rebuilt two simplified soil consumer–prey systems: a bacterial-based system comprising amoebae (Acanthamoeba castellanii) feeding on a microbial community d

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Aislabie, Jackie, Malcolm McLeod, Janine Ryburn, Alexandra McGill, and Daniel Thornburrow. "Soil type influences the leaching of microbial indicators under natural rainfall following application of dairy shed effluent." Soil Research 49, no. 3 (2011): 270. http://dx.doi.org/10.1071/sr10147.

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The ability of soil to function as a barrier between microbial pathogens in wastes and groundwater following application of animal wastes is dependent on soil structure. We irrigated soil lysimeters with dairy shed effluent at intervals of 3–4 months and monitored microbial indicators (somatic coliphage, faecal enterococci, Escherichia coli) in soil core leachates for 1 year. The lysimeters were maintained in a lysimeter facility under natural soil temperature and moisture regimes. Microbial indicators were rapidly transported to depth in well-structured Netherton clay loam soil. Peak concentr

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