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1. Characteristics and distribution of phosphorus in surface sediments of a shallow lake

Author:
Ziwei Long; Zehua Ji; Yuansheng Pei
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 50-60
ISSN:
1001-0742
Subject:
agricultural pollution; bioavailability; biogeochemical cycles; esters; lakes; nuclear magnetic resonance spectroscopy; organic matter; orthophosphates; pH; principal component analysis; risk; rivers; sediments; China
Abstract:
... Phosphorus (P) in sediments plays an important role in shallow lake ecosystems and has a major effect on the lake environment. The mobility and bioavailability of P primarily depend on the contents of different P forms, which in turn depend on the sedimentary environment. Here, sediment samples from Baiyangdian (BYD) lake were collected and measured by the Standards, Measurements, and Testing proc ...
DOI:
10.1016/j.jes.2021.10.012

2. Combining of C, N and specific Hg stable isotopes to track bioaccumulation of monomethylmercury in coastal and freshwater seafood

Author:
Shaochen Yang; Ping Li; Jinling Liu; Muhammad Ubaid Ali; Li Ding; Bo Wang
Source:
Food chemistry 2023 v.401 pp. 134202
ISSN:
0308-8146
Subject:
bioaccumulation; biogeochemical cycles; demethylation; fish; food chemistry; freshwater; humans; methylmercury compounds; photolysis; resorption; seafood consumption; seafoods; sediments; shellfish
Abstract:
... Human exposure to monomethylmercury (MMHg) through seafood consumption is a global concern. This study investigates the potential sources and processes of MMHg in seafood of coastal and freshwater areas through combing of δ¹³C, δ¹⁵N, and specific Hg (including MMHg and inorganic Hg (IHg)) isotopes. The results showed that δ¹³C and δ¹⁵N values exhibit different patterns in coastal and freshwater sp ...
DOI:
10.1016/j.foodchem.2022.134202

3. Effects of environmental factors on selenite volatilization by freshwater microalgae

Author:
Gaoxiang Zhang; Xiaoling Chen; Feili Li; Weiyan Que; Junjie Qian; Jingjing Fang; Tianzheng Ding
Source:
Science of the total environment 2023 v.854 pp. 158539
ISSN:
0048-9697
Subject:
biogeochemical cycles; environment; freshwater; metabolism; microalgae; pH; regression analysis; selenites; selenium; surface water; volatilization; wastewater
Abstract:
... The accumulation and volatilization of Se by algae in surface water are important parts of the biogeochemical cycle of selenium but are also variable and complex. Experiments with 5–8 day of exposure under various temperatures, solution pH values, lighting regimes, and different initial Se concentrations were carried out to study the change in Se accumulation and volatilization behavior of algae. ...
DOI:
10.1016/j.scitotenv.2022.158539

4. Root exudates increased arsenic mobility and altered microbial community in paddy soils

Author:
Ouyuan Jiang; Lvyao Li; Guilan Duan; Williamson Gustave; Weiwei Zhai; Lina Zou; Xia An; Xianjin Tang; Jianming Xu
Source:
Journal of environmental sciences (China) 2023 v.127 pp. 410-420
ISSN:
1001-0742
Subject:
Anaeromyxobacter; Geobacter; arsenates; arsenites; biogeochemical cycles; carbon; community structure; dose response; microbial communities; organic matter; paddies; redox potential; risk; soil microorganisms; soil pH; China
Abstract:
... Root exudates are crucial for plants returning organic matter to soils, which is assumed to be a major source of carbon for the soil microbial community. This study investigated the influence of root exudates on the fate of arsenic (As) with a lab simulation experiment. Our findings suggested that root exudates had a dose effect on the soil physicochemical properties, As speciation transformation ...
DOI:
10.1016/j.jes.2022.05.036

5. Seasonal changes in total mercury and methylmercury in subtropical decomposing litter correspond to the abundances of nitrogen-fixing and methylmercury-degrading bacteria

Author:
Liping Yang; Guang Yang; Jueying Wang; Bingcai Xiong; Pan Guo; Tao Wang; Hongxia Du; Ming Ma; Dingyong Wang
Source:
Journal of hazardous materials 2023 v.442 pp. 130064
ISSN:
0304-3894
Subject:
biogeochemical cycles; forest ecosystems; forests; mercury; methylmercury compounds; nitrogen; nitrogen fixation; plant litter; summer
Abstract:
... Previous research has found total mercury (THg) and methylmercury (MeHg) levels increase with litterfall decay, thus suggesting litterfall decomposition plays an essential role in the biogeochemical transformation of mercury (Hg). However, it remains unclear how Hg accumulates in the decaying litter, how bacterial taxa networks vary and what roles various microorganisms play during litterfall deco ...
DOI:
10.1016/j.jhazmat.2022.130064

6. Adsorption of humic acids to lake sediments: Compositional fractionation, inhibitory effect of phosphate, and implications for lake eutrophication

Author:
ShuaiLong Wen; YueHan Lu; ChunYan Luo; ShiLin An; JiaRu Dai; ZhengWen Liu; JiCheng Zhong; YingXun Du
Source:
Journal of hazardous materials 2022 v.433 pp. 128791
ISSN:
0304-3894
Subject:
adsorption; biogeochemical cycles; carbon; eutrophication; fractionation; humic acids; lakes; phosphates; phosphorus; polysaccharides
Abstract:
... Humic acid (HA) and phosphate interactions play a vital role in the biogeochemical cycle of carbon and nutrients and thus the trophic state of a lake. The adsorption behavior of HAs to sediments in the absence and presence of phosphate was investigated in this study. Three types of HAs were used, AHA from algae-dominated lake sediments, MHA from macrophyte-dominated lake sediments, and a reference ...
DOI:
10.1016/j.jhazmat.2022.128791

7. Anaerobic microbial manganese oxidation and reduction: A critical review

Author:
Xuan Wang; Guo-Jun Xie; Ning Tian; Cheng-Cheng Dang; Chen Cai; Jie Ding; Bing-Feng Liu; De-Feng Xing; Nan-Qi Ren; Qilin Wang
Source:
Science of the total environment 2022 v.822 pp. 153513
ISSN:
0048-9697
Subject:
ammonium; bioavailability; biogeochemical cycles; carbon; denitrification; heavy metals; manganese; methane; microbial bioremediation; nitrogen; oxidation; photosynthesis; sediments; soil; sulfides; sulfur
Abstract:
... Manganese is a vital heavy metal abundant in terrestrial and aquatic environments. Anaerobic manganese redox reactions mediated by microorganisms have been recognized for a long time, which promote elements mobility and bioavailability in the environment. Biological anaerobic redox of manganese serves two reactions, including Mn(II) oxidation and Mn(IV) reduction. This review provides a comprehens ...
DOI:
10.1016/j.scitotenv.2022.153513

8. Anthropogenic activities influence the mobilization of trace metals and oxyanions in coastal sediment porewaters

Author:
Mingyue Luo; Chunyang Zhou; Tianhui Ma; Wei Guo; Lawrence Percival; Willy Baeyens; Yue Gao
Source:
Science of the total environment 2022 v.839 pp. 156353
ISSN:
0048-9697
Subject:
benthic ecosystems; bioavailability; biogeochemical cycles; brackish water; coastal sediments; coastal water; coasts; diagenesis; environment; estuaries; pH; redox potential; sludge; sulfides
Abstract:
... The biogeochemical cycle of trace metals and oxyanions in marine sediments is mainly controlled by early diagenesis of organic material, but anthropogenic activities such as dumping of dredged sludge or shipyard activities can strongly perturb these natural processes. Therefore, the impact of dumping of dredged sludge, shipyard activities such as blasting of boat hulls and the mixing of polluted S ...
DOI:
10.1016/j.scitotenv.2022.156353

9. Atmospheric particulate-bound mercury (PBM10) in a Southeast Asia megacity: Sources and health risk assessment

Author:
Ly Sy Phu Nguyen; To Thi Hien; Minh Tri Truong; Nguyen Doan Thien Chi; Guey-Rong Sheu
Source:
Chemosphere 2022 v.307 pp. 135707
ISSN:
0045-6535
Subject:
adsorption; air; biogeochemical cycles; cities; clothing; data collection; dry deposition; health effects assessments; mercury; metropolitan areas; monsoon season; particulate emissions; particulates; temporal variation; China; Vietnam
Abstract:
... Particulate-bound mercury (PBM) is a global environmental concern owing to its large dry deposition velocities and scavenging coefficients, both of which drive Hg into terrestrial and marine ecosystems. PBM observation studies have been widely conducted over East Asia, but comparable studies in Peninsular Southeast Asia (PSEA) remain scarce. This is the first study reporting PBM concentrations for ...
DOI:
10.1016/j.chemosphere.2022.135707

10. B and δ11B biogeochemical cycle in a beech forest developed on a calcareous soil: Pools, fluxes, and forcing parameters

Author:
P. Roux; D. Lemarchand; P.-O. Redon; M.-P. Turpault
Source:
Science of the total environment 2022 v.806 pp. 150396
ISSN:
0048-9697
Subject:
Fagus; bioavailability; biogeochemical cycles; biomass; boron; calcareous soils; ecosystems; environment; forests; isotope fractionation; isotopes; models; plant growth; trees; xylem
Abstract:
... Rock weathering and biological cycling hold the development and sustainability of continental ecosystems, yet the interdependence of macro- and micro-nutrients biogeochemical cycles and their implications for ecosystem functioning remains unclear, despite being of particular importance in the context of global changes. This study focuses on the stocks, fluxes and processes constituting the biogeoc ...
DOI:
10.1016/j.scitotenv.2021.150396

11. Biogeochemical cycle of mercury and controlling technologies: Publications in critical reviews in environmental science & technology in the period of 2017–2021

Author:
Jianxu Wang; Lena Qiying Ma; Rob Letcher; Scott Alan Bradford; Xinbin Feng; Jörg Rinklebe
Source:
Critical reviews in environmental science and technology 2022 v.52 no.24 pp. 4325-4330
ISSN:
1547-6537
Subject:
biogeochemical cycles; climate change; forests; gold; humans; mercury; pollution; remediation; risk; toxicity; traditional technology; China
Abstract:
... The Minamata Convention on Mercury (Hg) calls for global efforts to reduce the release and risk of Hg. A better understanding of the global Hg budget, transformation and transport as well as toxicity of Hg in the environment, and the Hg emission controlling technologies, is important to minimize Hg pollution and exposure risks. Here, we summarized recent findings regarding the Hg cycle, transport, ...
DOI:
10.1080/10643389.2022.2071210

12. Cellular and genetic mechanism of bacterial mercury resistance and their role in biogeochemistry and bioremediation

Author:
Monika Priyadarshanee; Shreosi Chatterjee; Sonalin Rath; Hirak R. Dash; Surajit Das
Source:
Journal of hazardous materials 2022 v.423 pp. 126985
ISSN:
0304-3894
Subject:
bioaccumulation; biogeochemical cycles; bioremediation; mercury; operon; toxicity; volatilization
Abstract:
... Mercury (Hg) is a highly toxic element that occurs at low concentrations in nature. However, various anthropogenic and natural sources contribute around 5000 to 8000 metric tons of Hg per year, rapidly deteriorating the environmental conditions. Mercury-resistant bacteria that possess the mer operon system have the potential for Hg bioremediation through volatilization from the contaminated milieu ...
DOI:
10.1016/j.jhazmat.2021.126985

13. Characterization of Microorganisms from Protaetia brevitarsis Larva Frass

Author:
Huina Xuan; Peiwen Gao; Baohai Du; Lili Geng; Kui Wang; Kun Huang; Jie Zhang; Tianpei Huang; Changlong Shu
Source:
Microorganisms 2022 v.10 no.2 pp. -
ISSN:
2076-2607
Subject:
Bacillus subtilis; Protaetia; biogeochemical cycles; disease resistance; dominant species; frass; genes; growth promotion; humic acids; microbial communities; plant growth
Abstract:
... Decomposers play an important role in the biogeochemical cycle. Protaetia brevitarsis larvae (PBLs) can transform wastes into frass rich in humic acid (HA) and microorganisms, which may increase the disease resistance of plants and promote plant growth. Beyond HA, the microorganisms may also contribute to the biostimulant activity. To address this hypothesis, we investigated the potential microbia ...
DOI:
10.3390/microorganisms10020311

14. Characterizing the Roles of Biogeochemical Cycling and Ocean Circulation in Regulating Marine Copper Distributions

Author:
Minming Cui; Anand Gnanadesikan
Source:
Journal of geophysical research 2022 v.127 no.1 pp. e2021JC017742
ISSN:
2169-9275
Subject:
biogeochemical cycles; geophysics; models; oceans; phytoplankton; research
Abstract:
... Copper (Cu) is a key micronutrient for marine phytoplankton. Its oceanic biogeochemical cycle has elicited considerable attention due to dissolved Cu exhibiting a unique linear profile with depth. Several processes have been proposed for explaining this behavior. In this study, we characterize the relationships between the observed Cu, PO₄³⁻, and Si on a global scale. We find that the depth profil ...
DOI:
10.1029/2021JC017742

15. Comment on “Early Archean biogeochemical iron cycling and nutrient availability: New insights from a 3.5 Ga land-sea transition” by Clark M. Johnson, Xin-Yuan Zheng, Tara Djokic, Martin J. Van Kranendonk, Andrew D. Czaja, Eric E. Roden, Brian L. Beard, 2022, Earth-Science Reviews, https://doi.org/10.1016/j.earscirev.2022.103992

Author:
Birger Rasmussen; Janet R. Muhling
Source:
Earth-science reviews 2022 v.231 pp. 104088
ISSN:
0012-8252
Subject:
Archean eon; biogeochemical cycles; ferrihydrite; hematite; isotopes; light microscopy; nutrient availability; oxidation; siderite; Arctic region; Australia
Abstract:
... In their recent paper entitled "Early Archean biogeochemical iron cycling and nutrient availability: New insights from a 3.5 Ga land-sea transition", Johnson et al. (2022) use the Fe isotope and trace-element compositions of ~3.5 Ga jaspilites from the North Pole Dome area of the Pilbara Craton, northwestern Australia, to investigate links between the ancient Fe biogeochemical cycle, continental e ...
DOI:
10.1016/j.earscirev.2022.104088

16. Description of a Dimethylmercury Automatic Analyzer for the High-Resolution Measurement of Dissolved Gaseous Mercury Species in Surface Ocean Waters

Author:
Yipeng He; Xiangming Shi; Wesley W. Huffman; Carl H. Lamborg; Robert P. Mason
Source:
Environmental science & technology 2022 v.56 no.18 pp. 13076-13084
ISSN:
1520-5851
Subject:
biogeochemical cycles; coasts; cold; environmental science; fluorescence emission spectroscopy; gas chromatography; mercury; microprocessors; oceans; seawater; time series analysis; uncertainty; vapors
Abstract:
... Our understanding of the significance of dimethylmercury (DMHg) to the mercury (Hg) global ocean biogeochemical cycle is unclear because of the lack of detailed DMHg measurements in the water column. To our knowledge, 30 years of published studies have generated no more than 200 DMHg data points in the ocean surface waters and marine boundary layer (MBL). To improve the precision and reduce the un ...
DOI:
10.1021/acs.est.2c02908

17. Description of five novel thermophilic species of the genus Thermus: Thermus hydrothermalis sp. nov., Thermus neutrinimicus sp. nov., Thermus thalpophilus sp. nov., Thermus albus sp. nov., and Thermus altitudinis sp. nov., isolated from hot spring sediments

Author:
Meng-Meng Li; Ai-Ping Lv; Zi-Yu Zhao; Wen-Dong Xian; Zheng-Han Lian; Yu-Ting OuYang; Hong Ming; Sha Tan; Jian-Yu Jiao; En-Min Zhou; Lan Liu; Wen-Jun Li
Source:
Systematic and applied microbiology 2022 pp. 126361
ISSN:
0723-2020
Subject:
Thermus brockianus; biogeochemical cycles; cell growth; chemotaxonomy; denitrification; denitrifying microorganisms; genes; hot springs; menaquinones; nitrogen; nitrogen metabolism; nucleic acid hybridization; pH; phylogeny; China
Abstract:
... Biological denitrification is a significant process in nitrogen biogeochemical cycle of terrestrial geothermal environments, and Thermus species have been shown to be crucial heterotrophic denitrifier in hydrothermal system. Five Gram-stain negative, aerobic and rod-shaped thermophilic bacterial strains were isolated from hot spring sediments in Tibet, China. Phylogenetic analysis based on 16S rRN ...
DOI:
10.1016/j.syapm.2022.126361

18. Deyeuxia angustifolia Kom. encroachment changes soil physicochemical properties and microbial community in the alpine tundra under climate change

Author:
Biao Ni; Wei Zhao; Xianghua Zuo; Jian You; Yulong Li; Jiangnan Li; Yingda Du; Xia Chen
Source:
Science of the total environment 2022 v.813 pp. 152615
ISSN:
0048-9697
Subject:
Calamagrostis; alpine tundra; altitude; biogeochemical cycles; climate change; community structure; ecosystems; fungi; humans; indicator species; microbial communities; soil microorganisms; China
Abstract:
... Plant encroachment in alpine regions, caused by global changes and human activities, has been well documented. However, our knowledge of the effects of plant encroachment on belowground microbial communities is limited. Here, we investigated soil physicochemical properties and microbial community structures under the impact of plant encroachment along an elevation gradient in the alpine tundra of ...
DOI:
10.1016/j.scitotenv.2021.152615

19. Distinct transport mechanisms of East Asian dust and the impact on downwind marine and atmospheric environments

Author:
Steven Soon-Kai Kong; Shantanu Kumar Pani; Stephen M. Griffith; Chang-Feng Ou-Yang; Saginela Ravindra Babu; Ming-Tung Chuang; Maggie Chel Gee Ooi; Wei-Syun Huang; Guey-Rong Sheu; Neng-Huei Lin
Source:
Science of the total environment 2022 v.827 pp. 154255
ISSN:
0048-9697
Subject:
altitude; biogeochemical cycles; climate; cooling; dust; environmental impact; human health; mountains; China; Taiwan
Abstract:
... East Asian dust episodes have a multitude of impacts, including on human health, environment, and climate over near-source and receptor regions. However, the mechanistic understanding of the synoptic conditions of these outbreaks at different altitude layers, and their eventual environmental impacts are less studied. The present study analyzed the synoptic transport patterns of East Asian dust dur ...
DOI:
10.1016/j.scitotenv.2022.154255

20. Distribution of mercury in foliage, litter and soil profiles in forests of the Qinling Mountains, China

Author:
Honghong Ma; Hangxin Cheng; Fei Guo; Li Zhang; Shiqi Tang; Zheng Yang; Min Peng
Source:
Environmental research 2022 v.211 pp. 113017
ISSN:
0013-9351
Subject:
altitude; biogeochemical cycles; leaves; mercury; mineral soils; nitrogen; research; soil organic carbon; soil profiles; sulfur; temperature; topographic slope; trees; China
Abstract:
... Forest ecosystems have been confirmed to be a sink of the global mercury (Hg) in the biogeochemical cycle. However, few studies have investigated the distribution of Hg in forest ecosystems on a regional scale in China. This work aimed to investigate the concentrations, distribution and influential factors of Hg in the Qinling Mountains forests in central China. Foliage, litter and soil profile sa ...
DOI:
10.1016/j.envres.2022.113017

21. Diversity and biogenesis contribution of sulfate-reducing bacteria in arsenic-contaminated soils from realgar deposits

Author:
Xianbin Zhu; Liyuan Chen; Hongzhong Pan; Lei Wang; Xun Zhang; Dan Wang
Source:
Environmental science and pollution research 2022 v.29 no.21 pp. 31110-31120
ISSN:
0944-1344
Subject:
Chloroflexi; Desulfotomaculum; Proteobacteria; biogenesis; biogeochemical cycles; oxidoreductases; pollution; research; sulfate-reducing bacteria; sulfates; sulfites; sulfur; total organic carbon
Abstract:
... Microbial sulfate reduction, a vital mechanism for microorganisms living in anaerobic, sulfate-rich environments, is an essential aspect of the sulfur biogeochemical cycle. However, there has been no detailed investigation of the diversity and biogenesis contribution of sulfate-reducing bacteria in arsenic-contaminated soils from realgar deposits. To elucidate this issue, soil samples from represe ...
DOI:
10.1007/s11356-022-18595-3

22. Dynamic of riverine pCO2, biogeochemical characteristics, and carbon sources inferred from δ13C in a subtropical river system

Author:
Imali Kaushalya Herath; Shengjun Wu; Maohua Ma; Huang Ping
Source:
Science of the total environment 2022 v.821 pp. 153296
ISSN:
0048-9697
Subject:
air; biogeochemical cycles; carbon dioxide; carbonates; chlorophyll; ecosystems; environment; global carbon budget; organic carbon; riparian areas; river water; rivers; sewage; soil; summer; uncertainty; winter; Yangtze River
Abstract:
... Rivers significantly contribute to the global carbon budget, but data limitations and uncertainty are hampered by CO₂ quantification in the global rivers. Thus, this study estimated riverine pCO₂ by employing the pH-alkalinity-temperature method, and dissolved inorganic (DIC), dissolved organic (DOC), particulate organic (POC) carbon, and their isotopes (δ¹³C) with Chlorophyll-a (Chl a) were measu ...
DOI:
10.1016/j.scitotenv.2022.153296

23. Early Archean biogeochemical iron cycling and nutrient availability: New insights from a 3.5 Ga land-sea transition

Author:
Clark M. Johnson; Xin-Yuan Zheng; Tara Djokic; Martin J. Van Kranendonk; Andrew D. Czaja; Eric E. Roden; Brian L. Beard
Source:
Earth-science reviews 2022 v.228 pp. 103992
ISSN:
0012-8252
Subject:
Eoarchean era; Mesoarchean era; Paleoarchean era; Paleoproterozoic era; basins; biogeochemical cycles; biosphere; databases; freshwater; models; nutrient availability; photooxidation; photosynthesis; seawater; silica; Arctic region
Abstract:
... The chemical and isotopic compositions of Precambrian Fe-rich chemical sedimentary rocks have figured prominently in discussions on the Fe biogeochemical cycle and redox conditions in the early Earth. Broad trends of decreasing δ⁵⁶Fe values for Eoarchean to Paleoproterozoic iron formations (IFs) and jaspilites (hematite-chert) with decreasing age reflect a general increase in extent of oxidation o ...
DOI:
10.1016/j.earscirev.2022.103992

24. Effect of Indian monsoon on the glacial airborne bacteria over the Tibetan Plateau

Author:
Jing Qi; Mukan Ji; Wenqiang Wang; Zhihao Zhang; Keshao Liu; Zhongwei Huang; Yongqin Liu
Source:
Science of the total environment 2022 v.831 pp. 154980
ISSN:
0048-9697
Subject:
Actinobacteria; Bacteroidetes; Clostridium butyricum; Pseudomonas fluorescens; Staphylococcus aureus; atmospheric circulation; bacterial communities; biogeochemical cycles; community structure; environment; genes; glaciers; monsoon season; taxonomy; China
Abstract:
... The glacier of the Tibetan Plateau (TP) is influenced by the Indian monsoon and continental westerlies. Wind flow can carry a variety of bacteria and disperse across the TP. Once these bacteria are colonized to the glacier surface, they could affect the biogeochemical cycle of the glacial ecosystems. However, very few studies have focused on the relationships between these airborne bacteria and at ...
DOI:
10.1016/j.scitotenv.2022.154980

25. Effects of antibiotics and heavy metals on denitrification in shallow eutrophic lakes

Author:
Fei Deng; Dongwei Zhang; Liting Yang; Lijuan Li; Yu Lu; Jing Wang; Yujiao Fan; Yanrong Zhu; Xiaowen Li; Yao Zhang
Source:
Chemosphere 2022 v.291 pp. 132948
ISSN:
0045-6535
Subject:
antibiotic resistance; antibiotics; antimony; aquaculture; arsenic; biogeochemical cycles; cobalt; community structure; denitrification; enrofloxacin; eutrophication; heavy metals; humans; manganese; sewage
Abstract:
... Antibiotic and heavy metal residues in shallow lakes caused by aquaculture and human activities such as sewage discharge have attracted much attention and public concern. However, mechanisms by which these environmental pollutants affect the microorganism-mediated biogeochemical cycle are unknown. This study focused on the effects of antibiotics, heavy metal, and antibiotic resistance genes (ARGs) ...
DOI:
10.1016/j.chemosphere.2021.132948

26. Effects of graphene oxide nanosheets in the polychaete Hediste diversicolor: Behavioural, physiological and biochemical responses

Author:
Adília Pires; Etelvina Figueira; M.S.S. Silva; Carina Sá; Paula A.A.P. Marques
Source:
Environmental pollution 2022 v.299 pp. 118869
ISSN:
0269-7491
Subject:
Polychaeta; aquatic environment; biogeochemical cycles; burrows; cytosol; energy expenditure; estuaries; graphene; graphene oxide; lipid peroxidation; metabolism; mucus; nanosheets; pollution; reactive oxygen species; sediments; toxicity
Abstract:
... Numerous applications exist for graphene-based materials, such as graphene oxide (GO) nanosheets. Increased concentrations of GO nanosheets in the environment have the potential to have a large negative effect on the aquatic environment, with consequences for benthic organisms, such as polychaetes. The polychaete Hediste diversicolor mobilises the sediments, hence altering the availability of cont ...
DOI:
10.1016/j.envpol.2022.118869

27. Effects of physical disturbance of sediment on the cycling of mercury in coastal regions

Author:
Wenjie Wang; Yingjun Wang; Yanbin Li; Yue Song; Guangliang Liu; Yongguang Yin; Yong Cai
Source:
Science of the total environment 2022 v.838 pp. 156298
ISSN:
0048-9697
Subject:
bioaccumulation; biogeochemical cycles; environment; health effects assessments; mariculture; mercury; methylation; methylmercury compounds; organic matter; pollutants; risk; sediments; suspended sediment; China; Yellow Sea
Abstract:
... Mercury (Hg) is a global pollutant of health concern due to formation and bioaccumulation of methylmercury (MeHg) during its biogeochemical cycle. Coastal areas are important regions in the biogeochemical cycling of Hg (Liu et al., 2017), where often-occurring natural and anthropogenic perturbations affect Hg transport and transformation and the associated health risk from Hg. The rapidly growing ...
DOI:
10.1016/j.scitotenv.2022.156298

28. Effects of wetland types on dynamics and couplings of labile phosphorus, iron and sulfur in coastal wetlands during growing season

Author:
Minjie Hu; Jordi Sardans; Yixun Le; Ruibing Yan; Yi Zhong; Josep Peñuelas
Source:
Science of the total environment 2022 v.830 pp. 154460
ISSN:
0048-9697
Subject:
aquaculture; biogeochemical cycles; environment; iron; soil organic phosphorus; soil water; sulfates; sulfur; wetlands
Abstract:
... Wetland type plays an important role in controlling the phosphorus (P) biogeochemical cycle, while its effect on labile P dynamics and coupling with iron (Fe) and sulfur (S) in coastal wetlands remains unclear. In this study, chemical sequential extraction and high-resolution diffusive gradients in thin-film (DGT) techniques were employed to investigate P forms, mobilization, and labile Fe-S-P cou ...
DOI:
10.1016/j.scitotenv.2022.154460

29. Erosion and deposition divergently affect the structure of soil bacterial communities and functionality

Author:
Weibo Kong; Fuyuan Su; Qian Zhang; Satoshi Ishii; Michael J. Sadowsky; Samiran Banerjee; Mingan Shao; Liping Qiu; Xiaorong Wei
Source:
Catena 2022 v.209 pp. 105805
ISSN:
0341-8162
Subject:
Acidobacteria; Actinobacteria; bacterial communities; biogeochemical cycles; catenas; community structure; forests; genes; soil; soil bacteria; soil erosion; soil management; terrestrial ecosystems; China
Abstract:
... Soil erosion and deposition dramatically affect the biogeochemical cycle of terrestrial ecosystem, while how the microbial communities and soil multiple functions responds to soil erosion, particularly following deposition, are rarely addressed. Such knowledge gap hinders our comprehensively understanding about biogeochemistry cycling, the development of sustainable soil management practices and t ...
DOI:
10.1016/j.catena.2021.105805

30. Exploration of pristine plate-tectonic plains and mining exposure areas for indigenous microbial communities and its impact on the mineral-microbial geochemical weathering process in ultramafic setting

Author:
Suprokash Koner; Hsin-Chi Tsai; Jung-Sheng Chen; Bashir Hussain; Senthil Kumar Rajendran; Bing-Mu Hsu
Source:
Environmental research 2022 v.214 pp. 113802
ISSN:
0013-9351
Subject:
Actinobacteria; Chloroflexi; Cyanobacteria; Planctomycetes; Proteobacteria; biogeochemical cycles; heavy metals; metal tolerance; prediction; research; serpentine; soil ecology; synergism
Abstract:
... Heavy metal release from harsh ultramafic settings influences microbial diversity and function in soil ecology. This study aimed to determine how serpentine mineralosphere bacterial assemblies and their functions differed in two different plate-tectonic plains and mining exposure sites under heavy metal release conditions. The results showed that the Proteobacteria, Actinobacteria, Cyanobacteria, ...
DOI:
10.1016/j.envres.2022.113802

31. Facilitated destabilization of physicochemically protected soil organic matter by root-derived low-molecular-weight organic acids [Erratum: June 2022, v.22(6); p.1687]

Author:
Yuanshuang Yuan; Ziliang Zhang; Lijuan Chen; Zhen Yang; Jing Liu
Source:
Journal of soils and sediments 2022 v.22 no.6 pp. 1677-1686
ISSN:
1439-0108
Subject:
X-ray absorption spectroscopy; aluminum; biogeochemical cycles; carbon; crosslinking; oxalic acid; rhizosphere; soil organic matter; zeta potential
Abstract:
... PURPOSE: Root-derived low-molecular-weight organic acids (LMWOAs) can impact the decomposition of soil organic matter (SOM) after being released into soils. However, the influence of individual LMWOA (e.g., oxalic acid) inputs on the destabilization of physicochemically protected SOM remains largely unknown. METHODS: Using artificial roots in a firmly controlled rhizosphere system, we daily added ...
DOI:
10.1007/s11368-022-03188-x

32. Geochemical characteristics and source apportionment of toxic elements in the Tethys–Himalaya tectonic domain, Tibet, China

Author:
Yuan Tian; Xinjie Zha; Xing Gao; Chengqun Yu
Source:
Science of the total environment 2022 v.831 pp. 154863
ISSN:
0048-9697
Subject:
anthropogenic activities; arsenic; biogeochemical cycles; cadmium; chromium; environment; geostatistics; human health; income; land use; lead; mercury; prediction; soil pH; soil pollution; soil remediation; tectonics; toxicity; watersheds; China
Abstract:
... Toxic elements (TEs) in soil threaten the eco-environmental system and human health. The identification and prediction of sources and high-risk areas of TEs in soil are fundamental for regional pollution prevention and control. In this study, geostatistical methods and GIS-based approaches were used to quantitatively analyze the spatial distribution, geochemical characteristics, key driving factor ...
DOI:
10.1016/j.scitotenv.2022.154863

33. How dam construction affects the activity of alkaline phosphatases in reservoir sediments: A study of two highly regulated rivers

Author:
Juan Chen; Peifang Wang; Chao Wang; Xun Wang; Han Gao; Ge Cui; Sheng Liu; Qiusheng Yuan
Source:
Environmental research 2022 v.207 pp. 112236
ISSN:
0013-9351
Subject:
Bradyrhizobium; Methylobacterium; alkaline phosphatase; biogeochemical cycles; community structure; equations; genes; keystone species; mineralization; phosphorus; quantitative polymerase chain reaction; research; rivers; sediments; China
Abstract:
... Dam construction causes phosphorus (P) accumulation in reservoir sediments and significantly affects the generation of available P. However, the effect of dam construction on the activity of sediment alkaline phosphatase (ALP), which is encoded by the bacterial phoD gene and participates in P mineralization, in river sediments remains unclear. Here, we investigated the ALP activities in 78 sedimen ...
DOI:
10.1016/j.envres.2021.112236

34. Identification of groundwater microbial communities and their connection to the hydrochemical environment in southern Laizhou Bay, China

Author:
Fan Yang; Sen Liu; Chao Jia; Yujue Wang
Source:
Environmental science and pollution research 2022 v.29 no.10 pp. 14263-14278
ISSN:
0944-1344
Subject:
biogeochemical cycles; community structure; groundwater; hydrochemistry; microbial communities; pollution; research; salinity; seawater; China
Abstract:
... The microbial community plays an important role in the biogeochemical cycle in coastal groundwater ecosystems. However, the composition and controlling factors of the microbial community in coastal closed groundwater systems (CCGSs) with high salinity have rarely been studied. Here, we investigated and analyzed the hydrochemical characteristics and microbial community composition of seven brine sa ...
DOI:
10.1007/s11356-021-16812-z

35. Identification of mercury-containing nanoparticles in the liver and muscle of cetaceans

Author:
Xiaomeng Ji; Lin Yang; Fuxing Wu; Linlin Yao; Ben Yu; Xiaolei Liu; Yongguang Yin; Ligang Hu; Guangbo Qu; Jianjie Fu; Ruiqiang Yang; Xianyan Wang; Jianbo Shi; Guibin Jiang
Source:
Journal of hazardous materials 2022 v.424 pp. 127759
ISSN:
0304-3894
Subject:
atomic absorption spectrometry; biogeochemical cycles; cadmium; dominant species; gel chromatography; lead; liver; methylmercury compounds; muscles; risk; selenium; silver; sulfur; transmission electron microscopy
Abstract:
... Natural mercury-containing nanoparticles (Hg-NPs) have been found in the environment, but the information for Hg-NPs in organisms was still limited. Clarifying the unique roles of Hg-NPs in organisms is crucial to fully understand the health risks of Hg. Herein, liver and muscle tissues of cetaceans were collected to identify the presence and characteristics of Hg-NPs. We found that methylmercury ...
DOI:
10.1016/j.jhazmat.2021.127759

36. Impacts of Hurricane Michael on Watershed Hydrology: A Case Study in the Southeastern United States

Author:
Elijah Worley; Ning Liu; Ge Sun; Steven P. Norman; William M. Christie; Michael Gavazzi; Johnny Boggs; Steven G. McNulty
Source:
Forests 2022 v.13 no.6 pp. -
ISSN:
1999-4907
Subject:
biogeochemical cycles; case studies; coastal plains; coasts; exports; forests; hurricanes; hydrologic cycle; normalized difference vegetation index; rivers; saltwater intrusion; stream flow; subwatersheds; trees; vegetation cover; water quality; watershed hydrology; Alabama; Florida; Georgia
Abstract:
... Hurricanes are one of the most significant threats to coastal plain forest ecosystems and urban communities of the southeastern U.S., but their implications for watershed hydrology are unclear. Hurricanes have the potential to alter water balances, causing extensive flooding, biogeochemical cycle disruption, and water quality degradation, saltwater intrusion, and increased nutrient sedimentation e ...
DOI:
10.3390/f13060904

37. Interference of Climate Change on Plant-Microbe Interaction: Present and Future Prospects

Author:
Binny Sharma; Bansh Narayan Singh; Padmanabh Dwivedi; Mahendra Vikram Singh Rajawat
Source:
Frontiers in agronomy 2022 v.3 pp. -
ISSN:
2673-3218
Subject:
agronomy; biogeochemical cycles; bioinformatics; climate change; greenhouses; metagenomics; microbiome; phytobiome; soil; soil nutrient balance
Abstract:
... Plant mutualistic association with various beneficial microbes is referred to as the plant enhancer microbiome. These microbes are found either in episphere or endosphere of the plant tissues. Several pieces of evidence have highlighted that plant microbiomes and soil play a pivotal role in making soil nutrient balance which is readily available to plants and provide strength under various stresse ...
DOI:
10.3389/fagro.2021.725804

38. Interplay between arsenic and selenium biomineralization in Shewanella sp. O23S

Author:
Lucian C. Staicu; Paulina J. Wójtowicz; Zsombor Molnár; Encarnación Ruiz-Agudo; José Luis R. Gallego; Diego Baragaño; Mihály Pósfai
Source:
Environmental pollution 2022 v.306 pp. 119451
ISSN:
0269-7491
Subject:
Shewanella; anaerobiosis; arsenates; arsenites; biogeochemical cycles; biomineralization; biosynthesis; cysteine; energy; kinetics; nanorods; oxyanions; pollution; selenates; selenites; selenocysteine; spectroscopy; zeta potential
Abstract:
... Bacteria play crucial roles in the biogeochemical cycle of arsenic (As) and selenium (Se) as these elements are metabolized via detoxification, energy generation (anaerobic respiration) and biosynthesis (e.g. selenocysteine) strategies. To date, arsenic and selenium biomineralization in bacteria were studied separately. In this study, the anaerobic metabolism of As and Se in Shewanella sp. O23S wa ...
DOI:
10.1016/j.envpol.2022.119451

39. Intertidal macroinvertebrate community structure in a subtropical channel is driven by sediment properties across different land-use types

Author:
Mamun Abdullah Al; Aysha Akhtar; Hillol Barua; Abu Hena Mustafa Kamal; Md. Shafiqul Islam; Sheikh AftabUddin; Mohd Hanafi Idris; Muyassar H. Abualreesh; Letizia Modeo
Source:
Environmental science and pollution research 2022 v.29 no.44 pp. 66389-66404
ISSN:
0944-1344
Subject:
biodiversity; biogeochemical cycles; coastal ecosystems; community structure; geographical distribution; habitats; land use; littoral zone; macroinvertebrates; models; pollution; research; sediments; Bangladesh; Bay of Bengal
Abstract:
... Macroinvertebrate community in the intertidal setup plays an important role in coastal ecosystem functions and biogeochemical cycle. However, different land use pattern may influence on their community structure, diversity, and composition in the coastal ecosystems. Using Van-Veen grab sampler, 60 sediment samples were seasonally collected from mangroves-dominated, aquaculture-dominated, and anthr ...
DOI:
10.1007/s11356-022-20471-z

40. Iron solid-phase differentiation controls isotopic fractionation during lateritic weathering of basalt

Author:
Meng Qi; Ting Gao; Zhengrong Wang; Yuhui Liu; Yafei Xia; Changshun Song; Yizhang Liu; Chengshuai Liu
Source:
Catena 2022 v.217 pp. 106512
ISSN:
0341-8162
Subject:
basalt; biogeochemical cycles; catenas; climatic factors; goethite; hematite; iron; isotope fractionation; isotopes; laterites; regression analysis; spectroscopy; temperature; China
Abstract:
... Laterites are important iron (Fe) reservoirs impacting the biogeochemical cycle of Fe at Earth’s surface, and Fe oxides are critical Fe-host minerals in laterites that affect the geochemical behavior of Fe. Whether and how the differentiation of Fe minerals controls Fe isotope fractionation during laterization, however, remains unclear. In this study, the mineralogy, element concentrations, and Fe ...
DOI:
10.1016/j.catena.2022.106512

41. Isolation and Characterization of As (V)-reducing Bacillus sp. Strain SM-B1 from Arsenic Laden Gold Mine in Malaysia

Author:
Munirah Ramli; Shafinaz Shahir
Source:
Geomicrobiology journal 2022 v.39 no.7 pp. 577-590
ISSN:
1521-0529
Subject:
Acinetobacter; Bacillus (bacteria); arsenic; biogeochemical cycles; genes; gold; humans; pH; soil; toxicity; Malaysia
Abstract:
... Arsenic is a highly toxic element released into the environment naturally or through human activities. Bacteria are equipped with detoxification mechanisms that enable them to cope with the adverse effects of arsenic. These mechanisms play an important role in biogeochemical cycling of arsenic in the environment. Therefore, this study aimed to isolate arsenic resistant bacteria from arsenic-laden ...
DOI:
10.1080/01490451.2022.2054031

42. Lake reclamation alters molecular-level characteristics of lacustrine dissolved organic matter – A study of nine lakes in the Yangtze Plain, China

Author:
Quan-Hui Ye; Guo-Dong Sun; Ying-Hui Wang; Song Zhang; Yang Xu; Lian Feng; Myrna J. Simpson; Chen He; Quan Shi; Li-Ping Li; Jun-Jian Wang
Source:
Water research 2022 v.222 pp. 118884
ISSN:
0043-1354
Subject:
biodiversity; biogeochemical cycles; dissolved organic matter; fluorescence; fluorescence emission spectroscopy; lakes; mass spectrometry; molecular weight; nuclear magnetic resonance spectroscopy; research; water; water quality; China
Abstract:
... In recent decades, the reclamation of lakes has captured 42% of the total lake area of the Yangtze Plain in China and introduced additional pressure on lacustrine water quality. While lacustrine dissolved organic matter (DOM) is critical in regulating biogeochemical processing and aquatic biodiversity, the impact of reclamation on the molecular-level characteristics of lacustrine DOM remains unexp ...
DOI:
10.1016/j.watres.2022.118884

43. Leaf-root-soil N:P stoichiometry of ephemeral plants in a temperate desert in Central Asia

Author:
Ye Tao; Dong Qiu; Yan-Ming Gong; Hui-Liang Liu; Jing Zhang; Ben-Feng Yin; Hai-Ying Lu; Xiao-Bing B. Zhou; Yuan-Ming Zhang
Source:
Journal of plant research 2022 v.135 no.1 pp. 55-67
ISSN:
0918-9440
Subject:
biogeochemical cycles; homeostasis; leaves; nitrogen; nitrogen content; phosphorus; research; soil; soil nutrients; stoichiometry; vegetation; Central Asia; China
Abstract:
... Ephemeral plants are a crucial vegetation component in temperate deserts of Central Asia, and play an important role in biogeochemical cycle and biodiversity maintenance in desert ecosystems. However, the nitrogen (N) and phosphorus (P) status and interrelations of leaf-root-soil of ephemeral plants remain unclear. A total of 194 leaf-root-soil samples of eight ephemeral species at 37 sites in the ...
DOI:
10.1007/s10265-021-01355-8

44. Levels and variations of soil bioavailable nitrogen among forests under high atmospheric nitrogen deposition

Author:
Zhong-Cong Sun; Tian-Yi Ma; Shi-Qi Xu; Hao-Ran Guo; Chao-Chen Hu; Chong-Juan Chen; Wei Song; Xue-Yan Liu
Source:
Science of the total environment 2022 v.838 pp. 156405
ISSN:
0048-9697
Subject:
bioavailability; biogeochemical cycles; evolution; microbial biomass; mineralization; nitrification; nitrogen; soil water; total nitrogen; China
Abstract:
... To examine the perturbation of atmospheric nitrogen (N) deposition on soil N status and the biogeochemical cycle is meaningful for understanding forest function evolution with environmental changes. However, levels of soil bioavailable N and their environmental controls in forests receiving high atmospheric N deposition remain less investigated, which hinders evaluating the effects of enhanced ant ...
DOI:
10.1016/j.scitotenv.2022.156405

45. Litter Decomposition of Qinghai Spruce (Picea crassifolia) Is Dependent on Mn Concentration in the Qilian Mountains, Northwest China

Author:
Jixiong Gu; Bilian Zhou; Chuanyan Zhao; Yuan Tang; Junkai Tian; Xinning Zhao
Source:
Forests 2022 v.13 no.9 pp. -
ISSN:
1999-4907
Subject:
Picea crassifolia; altitude; biogeochemical cycles; equations; forests; woodlands; China
Abstract:
... The factors determining litter decomposition incorporated into C and nutrient cycles were examined as part of a broader study investigating the biogeochemical cycle in forest ecosystems. Litter was collected from five altitudes of Qinghai spruce (Picea crassifolia) woodland stands in the Qilian Mountains and placed in litterbags. These litterbags were installed at the crown center (CC) and crown e ...
DOI:
10.3390/f13091418

46. Long-term manganese exposure-mediated benthic diatom assemblage in a subtropical stream: Distribution, substrate preferences and Mn-tolerance

Author:
Xinye Guo; Yankui Tang; Juanjuan Yin; Rugui Li; Binting Qin; Lu Jiang; Xuemin Chen; Zhining Huang
Source:
Journal of environmental management 2022 v.322 pp. 116153
ISSN:
0301-4797
Subject:
DNA; Diatoma; Gomphonema; Navicula; Nitzschia palea; Paspalum; Sellaphora; biogeochemical cycles; dry season; energy flow; environmental management; freshwater ecosystems; habitat preferences; manganese; seasonal variation; species diversity; streams; wet season
Abstract:
... Benthic diatoms play an important role in the biogeochemical cycle and energy flow of the freshwater ecosystem. In the present study, the benthic diatom samples were collected in a stream impacted by manganese-mining and smelting activities in dry season and rainy season. The DNA sequencing (18s) and morphological analysis were used to explore the distribution, abundances, diversities, and habitat ...
DOI:
10.1016/j.jenvman.2022.116153

47. Mapping Dynamic Turbidity Maximum Zone of the Yellow River Estuary from 38 Years of Landsat Imagery

Author:
Maoxiang Chang; Peng Li; Yue Sun; Houjie Wang; Zhenhong Li
Source:
Remote Sensing 2022 v.14 no.15 pp. -
ISSN:
2072-4292
Subject:
Internet; Landsat; algorithms; biogeochemical cycles; coasts; cost effectiveness; estuaries; evolution; rivers; seawater; time series analysis; turbidity; Yellow River
Abstract:
... Turbidity maximum zone (TMZ) plays a crucial role in estuarine ecosystems, exerting effects on erosion, environment evolution and socioeconomic activities in the coastal area. However, the long-term understanding of the TMZ in large river estuary such as the Yellow River estuary is still lacking. In this study, we focus on the TMZ distribution, variation and regulation mechanisms in the Yellow Riv ...
DOI:
10.3390/rs14153782

48. Measurements of fine root decomposition rate: Method matters

Author:
Xuefeng Li; Xingbo Zheng; Quanlai Zhou; Steven McNulty; John S. King
Source:
Soil biology & biochemistry 2022 v.164 pp. 108482
ISSN:
0038-0717
Subject:
biochemistry; biogeochemical cycles; biomass; community structure; death; equations; fine roots; necromass; rhizosphere; root growth; soil; soil fauna
Abstract:
... Fine root decomposition plays a major role in biogeochemical cycle in forests. Litterbags and intact cores are predominant methods for measuring fine root decomposition rate. However, their efficacies have not been critically reviewed. In this study, we identify six sources of error for both methods including use of unrepresentative substrates, changes in decomposer community composition, altered ...
DOI:
10.1016/j.soilbio.2021.108482

49. Metabarcoding data of prokaryotes and eukaryotes inhabiting the phosphogypsum stockpiles on the salt marshes of Huelva (SW Spain)

Author:
Patricia Gómez-Villegas; José Luis Guerrero; Miguel Pérez-Rodríguez; Juan Pedro Bolivar; Javier Vigara; Rosa León
Source:
Data in Brief 2022 v.41 pp. 107989
ISSN:
2352-3409
Subject:
DNA barcoding; acidity; biogeochemical cycles; databases; estuaries; eukaryotic cells; microbial communities; new species; phosphogypsum; prokaryotic cells; river water; rivers; seawater; Spain
Abstract:
... Around 100 Mt of phosphogypsum (PG) of extreme acidity and with high concentrations of heavy metals and radionuclides have been deposited on the salt marshes of the Tinto River estuary in Huelva (SW Spain) for more than forty years. The microbial community able to thrive in these adverse conditions remains totally unknown, despite the fact that it can highly influence the biogeochemical cycle of t ...
DOI:
10.1016/j.dib.2022.107989

50. Metagenomic study of humic acid promoting the dechlorination of polychlorinated biphenyls

Author:
Zhihui Qin; Binglu Li; Fengjun Xu; Kezhen Chen; Chen Chen; Jixing Wan; Chunna Yu; Jiawen Yang; Chaofeng Shen
Source:
Chemosphere 2022 v.301 pp. 134688
ISSN:
0045-6535
Subject:
Dehalococcoides; biogeochemical cycles; carbon; dechlorination; electron transfer; genes; humic acids; metagenomics; microbial communities; quinones; remediation; soil organic matter
Abstract:
... Polychlorinated biphenyls (PCBs) are persistent organic pollutants that degrade slowly in the environment. Humic acid (HA), the main component of soil organic matter, or more specifically, the quinone moieties in HA, is generally regarded as an “electron shuttle” between pollutants and microorganisms, which could promote microbial remediation of contamination. In this study, we examined the dechlo ...
DOI:
10.1016/j.chemosphere.2022.134688