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1. Permafrost degradation enhances the risk of mercury release on Qinghai-Tibetan Plateau

Author:
Mu, Cuicui; Schuster, Paul.F.; Abbott, Benjamin.W.; Kang, Shichang; Guo, Junming; Sun, Shiwei; Wu, Qingbai; Zhang, Tingjun
Source:
The Science of the total environment 2020 v.708 pp. 135127
ISSN:
0048-9697
Subject:
soil sampling,   etc   ; mercury; permafrost; vegetation types; China;     Show all 5 Subjects
Abstract:
... Permafrost on the Qinghai-Tibetan Plateau (QTP) has been degrading in the past decades. While the degradation may mobilize previously protected material from the permafrost profile, little is known about the stocks and stability of mercury (Hg) in the QTP permafrost. Here we measured total soil Hg in 265 samples from 15 permafrost cores ranging from 3 to 18 m depth, and 45 active layer (AL) soil s ...
DOI:
10.1016/j.scitotenv.2019.135127

2. Spatial distribution of iron forms and features in the dried lake bed of Urmia Lake of Iran

Author:
Mousavi, Amin; Shahbazi, Farzin; Oustan, Shahin; Jafarzadeh, Ali Asghar; Minasny, Budiman
Source:
Geoderma regional 2020 v.21 pp. e00275
ISSN:
2352-0094
Subject:
soil sampling,   etc   ; Landsat; crystal structure; iron; lakes; models; soil; Iran;     Show all 8 Subjects
Abstract:
... Urmia Lake, located in Iran, has a unique pedological feature as fresh soil materials are being exposed as the lake is shrinking. Overuse of its water resources has caused its water level to drop, particularly in the east shore of that lake. This consequence has caused a serious environmental risk, but created a rare opportunity to investigate the spatial distribution of six iron forms and feature ...
DOI:
10.1016/j.geodrs.2020.e00275

3. Development of a method for studying 241Pu/241Am activity ratio in the soil of the main Semipalatinsk test site areas

Author:
Kashirsky, Vladimir; Shatrov, Anton; Zvereva, Irina; Lukashenko, Sergey
Source:
Journal of environmental radioactivity 2020 v.216 pp. 106181
ISSN:
0265-931X
Subject:
soil sampling,   etc   ; americium; analytical specificity; plutonium; radioactivity; radionuclides; soil;     Show all 7 Subjects
Abstract:
... The methodology for determination of ²⁴¹Pu in soils of the main test sites of the Semipalatinsk Test Site (STS) has been developed. The results of ²⁴¹Am and ²⁴¹Pu activity determination in soil samples sampled at the main testing sites of the STS are presented. ²⁴¹Pu/²⁴¹Am activity ratio is calculated. In most cases, on local sites, ²⁴¹Pu/²⁴¹Am activity ratio is in a rather narrow range, which mak ...
DOI:
10.1016/j.jenvrad.2020.106181

4. Soil mapping based on assessment of environmental similarity and selection of calculating samples

Author:
Li, Yao; Zhang, Na; Li, Run-Kui; Liu, Cheng-Yu; Shen, Jing; Jing, Yong-Cai
Source:
Catena 2020 v.188 pp. 104379
ISSN:
0341-8162
Subject:
soil sampling,   etc   ; models; prediction; soil properties; soil surveys; uncertainty;     Show all 6 Subjects
Abstract:
... Many predictive soil mapping (PSM) methods encounter two problems. One is how to construct a similarity index that can indicate not only the similarity of an environmental covariate between sites but also the directional difference of the covariate itself between sites and predict the soil property values beyond the range of sample values. Another is how to determine which soil samples should be u ...
DOI:
10.1016/j.catena.2019.104379

5. A new species of the genus Caeculus Dufour (Acari: Caeculidae) from Mexico, with an updated key for the genus

Author:
Porta, Andrés O.; Rojas, Ignacio Mauro Vázquez
Source:
Systematic and applied acarology 2020 v.25 no.4 pp. 743-758
ISSN:
1362-1971
Subject:
soil sampling,   etc   ; Acari; new species; taxonomic keys; Mexico;     Show all 5 Subjects
Abstract:
... Caeculus veracruzensis sp. nov. is described based on exemplars collected in soil samples from La Mancha, Veracruz, México. An updated key is presented for the species of the genus Caeculus based on putatively more stable characters. ...
DOI:
10.11158/saa.25.4.13

6. Interpolation and stratification of multilayer soil property profile from sparse measurements using machine learning methods

Author:
Zhao, Tengyuan; Wang, Yu
Source:
Engineering geology 2020 v.265 pp. 105430
ISSN:
0013-7952
Subject:
soil sampling,   etc   ; Bayesian theory; artificial intelligence; engineering; geology; soil properties;     Show all 6 Subjects
Abstract:
... Identification of subsurface stratification and characterization of spatially varying soil properties profiles in multiple soil layers are indispensable in geotechnical site investigation. Subsurface soils are often stratified first through visual inspection of soil samples obtained from boreholes or soil behavior type index from cone penetration tests. Then, the soil property profile within each ...
DOI:
10.1016/j.enggeo.2019.105430

7. Global soil science research collaboration in the 21st century: Time to end helicopter research

Author:
Minasny, Budiman; Fiantis, Dian; Mulyanto, Budi; Sulaeman, Yiyi; Widyatmanti, Wirastuti
Source:
Geoderma 2020 v.373 pp. 114299
ISSN:
0016-7061
Subject:
soil sampling,   etc   ; cooperative research; developing countries; ecological footprint; leadership; researchers; scientists; soil;     Show all 8 Subjects
Abstract:
... Global soil science research collaboration is essential to understand soil and its role in global ecosystem functioning. In particular, collaboration between developed and less-developed countries can generate new knowledge and provide capacity building. However, this collaboration is not always equal. ‘Helicopter research’ in soil science describes the situation where scientists from wealthier na ...
DOI:
10.1016/j.geoderma.2020.114299

8. Occurrence and distribution of organophosphate esters in the air and soils of Ny-Ålesund and London Island, Svalbard, Arctic

Author:
Han, Xu; Hao, Yanfen; Li, Yingming; Yang, Ruiqiang; Wang, Pu; Zhang, Gaoxin; Zhang, Qinghua; Jiang, Guibin
Source:
Environmental pollution 2020 v.263 pp. 114495
ISSN:
0269-7491
Subject:
soil sampling,   etc   ; esters; organophosphorus compounds; phosphates; polybrominated diphenyl ethers; soil; Arctic region; Norway;     Show all 8 Subjects
Abstract:
... The levels of eight organophosphate esters (OPEs) were analyzed in air and soil samples collected at Ny-Ålesund and London Island, Svalbard during the Chinese Scientific Research Expedition to the Arctic during 2014–2015. The concentrations of total OPEs (∑OPEs) ranged from 357 pg/m³ to 852 pg/m³ in the air and from 1.33 ng/g to 17.5 ng/g dry weight (dw) in the soils. Non-Cl OPEs accounted for 56  ...
DOI:
10.1016/j.envpol.2020.114495

9. LDPE microplastics significantly alter the temporal turnover of soil microbial communities

Author:
Wang, Jie; Huang, Muke; Wang, Qian; Sun, Yuanze; Zhao, Yanran; Huang, Yi
Source:
The Science of the total environment 2020 v.726 pp. 138682
ISSN:
0048-9697
Subject:
soil sampling,   etc   ; bacterial communities; community structure; microplastics; polyethylene; sequence analysis; soil; soil bacteria; soil ecosystems;     Show all 9 Subjects
Abstract:
... Although the ubiquitous presence of microplastics in various environments is increasingly well studied, knowledge of the effects of microplastics on ambient microbial communities is still insufficient. To estimate the response of soil bacterial community succession and temporal turnover to microplastic amendment, a soil microcosm experiment was carried out with polyethylene microplastics. The soil ...
DOI:
10.1016/j.scitotenv.2020.138682

10. Determination and distribution of 210Po in different morphological parts of tobacco plants and radiation dose assessment from cigarettes in Turkey

Author:
Cankurt, Süleyman; Görgün, Aysun Uğur
Source:
Ecotoxicology and environmental safety 2020 v.197 pp. 110603
ISSN:
0147-6513
Subject:
soil sampling,   etc   ; cigarettes; leaves; polonium; radionuclides; rain; roots; stems; trichomes; Turkey (country);     Show all 10 Subjects
Abstract:
... Both sides of tobacco leaves accumulate ²¹⁰Po through their sticky hairs (trichomes) by means of diffusive deposition. It is known that tobacco leaves may contain high amounts of ²¹⁰Po concentrations. However, there is less information about radionuclides in tobacco plants. In the study, the ²¹⁰Po concentrations were determined monthly in different morphological parts of tobacco plants (leaf, stem ...
DOI:
10.1016/j.ecoenv.2020.110603

11. Variations in the concentrations of macro- and trace elements in two grasses and in the rhizosphere soil during a day

Author:
Shtangeeva, Irina; Vīksna, Arturs; Bērtiņš, Māris; Ryumin, Alexander; Grebnevs, Vladlens
Source:
Environmental pollution 2020 v.262 pp. 114265
ISSN:
0269-7491
Subject:
soil sampling,   etc   ; Elymus repens subsp. repens; grasses; nutrients; rhizosphere; roots; soil; trace elements;     Show all 8 Subjects
Abstract:
... The aim of the research was to study short-term variations in concentrations of 17 elements in two widely distributed natural plant species (couch grass and plantain) and in the rhizosphere soil of the plants. The plant and soil samples were collected in a field from a small site over a daytime. In the course of the day, the variations of the total amounts of C, N, and H in the rhizosphere soil we ...
DOI:
10.1016/j.envpol.2020.114265

12. A study of daily variations of the outdoor background radiation measured in continuous mode in Federation of Bosnia and Herzegovina

Author:
Avdic, Senada; Demirovic, Damir; Kunosic, Suad; Pehlivanovic, Beco; Kadic, Irma; Ilic, Zorana
Source:
Journal of environmental radioactivity 2020 v.217 pp. 106212
ISSN:
0265-931X
Subject:
soil sampling,   etc   ; environmental monitoring; meteorological data; radioactivity; radionuclides; soil; terrestrial radiation; uncertainty; Bosnia-Herzegovina;     Show all 9 Subjects
Abstract:
... Systematic monitoring of environmental radionuclides with the aim of early warning in emergency situations in Federation of Bosnia and Herzegovina (FB&H) was established in 2004. Environmental radiation monitoring network includes six automatic monitoring stations over the FB&H territory. This paper deals with the first study of ambient dose equivalent rates collected over the period of 2012–2017 ...
DOI:
10.1016/j.jenvrad.2020.106212

13. Estimation of soil penetration resistance with standardized moisture using modeling by artificial neural networks

Author:
Fernandes, Mariele Monique Honorato; Coelho, Anderson Prates; Silva, Matheus Flavio da; Bertonha, Rafael Scabello; Queiroz, Renata Fernandes de; Furlani, Carlos Eduardo Angeli; Fernandes, Carolina
Source:
Catena 2020 v.189 pp. 104505
ISSN:
0341-8162
Subject:
soil sampling,   etc   ; monitoring; neural networks; soil compaction; soil penetration resistance; soil water;     Show all 6 Subjects
Abstract:
... One of the most used evaluations to monitor soil compaction is based on soil penetration resistance (SPR). However, since SPR is influenced by soil moisture, this evaluation performed in the field may often lead to incorrect interpretations. This study aimed to evaluate the accuracy of models in the estimation of soil penetration resistance with standardized moisture (SPRlab) based on soil penetra ...
DOI:
10.1016/j.catena.2020.104505

14. Spatio-temporal distribution and transformation of 17α- and 17β-estradiol in sterilized soil: A column experiment

Author:
Yu, Weiwei; Du, Banghao; Fan, Gongduan; Yang, Shuo; Yang, Lun; Zhang, Minne
Source:
Journal of hazardous materials 2020 v.389 pp. 122092
ISSN:
0304-3894
Subject:
soil sampling,   etc   ; estradiol; iron; irrigation; isomers; manganese oxides; oxidation; soil; soil sterilization; sorption; spatial distribution;     Show all 11 Subjects
Abstract:
... The environmental behaviors of steroid estrogens (SEs) associated with land irrigation and application are of critical concern worldwide. Understanding the spatio-temporal distribution and transformation process of these estrogenic compounds in soil is greatly significant. In this study, laboratory soil column experiments were conducted to investigate and explore the migration and abiotic transfor ...
DOI:
10.1016/j.jhazmat.2020.122092

15. High-throughput chemiluminescence immunoassay based on Co2+/hemin synergistic catalysis for sensitive detection tetrabromobisphenol A bis(2-hydroxyethyl) ether in the environments

Author:
Gu, Lantian; Zou, Yanmin; Li, Yanshen; Zeng, Kun; Zhu, Nuanfei; Zhu, Fang; Gyimah, Eric; Yakubu, Salome; Meng, Hui; Zhang, Zhen
Source:
The Science of the total environment 2020 v.714 pp. 136880
ISSN:
0048-9697
Subject:
soil sampling,   etc   ; antibodies; catalytic activity; chemiluminescence; chemiluminescence immunoassays; cobalt; detection limit; enzyme-linked immunosorbent assay; China;     Show all 9 Subjects
Abstract:
... Here, a novel chemiluminescence (CL) immunoassay was fabricated for sensitive determination of tetrabromobisphenol A bis(2-hydroxyethyl) ether (TBBPA-DHEE), one of typical tetrabromobisphenol A derivatives. At the indirectly competitive method, the synthesized PS@hemin@Co²⁺ was labelled by secondary antibody (Ab₂) instead of common natural enzymes, which showed excellent catalysis towards the deco ...
DOI:
10.1016/j.scitotenv.2020.136880

16. The profitability of variable rate lime in wheat

Author:
Mills, Brian E.; Wade Brorsen, B.; Arnall, D. Brian
Source:
Precision agriculture 2020 v.21 no.2 pp. 369-386
ISSN:
1385-2256
Subject:
soil sampling,   etc   ; crop rotation; forage production; grain yield; liming; prices; profitability; wheat; Kansas; Oklahoma;     Show all 10 Subjects
Abstract:
... Grid sampling allows a variable rate of lime to be applied and has been marketed as a cost saver to producers. However, there is little research that shows if this precision application is profitable or not. Previous research on variable-rate lime has considered only a small number of fields. This paper uses soil sampling data from 111 fields provided by producers in Oklahoma and Kansas. The 5-yea ...
DOI:
10.1007/s11119-019-09674-6

17. Non-darcian flow in loess at low hydraulic gradient

Author:
Wang, Haike; Qian, Hui; Gao, Yanyan
Source:
Engineering geology 2020 v.267 pp. 105483
ISSN:
0013-7952
Subject:
soil sampling,   etc   ; bound water; engineering; hydraulic conductivity; loess; mercury; models; permeability; porosimetry; porosity; seepage; water flow;     Show all 12 Subjects
Abstract:
... Determining the mechanism of water flow in loess involves many problems that are vital to science and engineering. Water flow through loess has usually been assumed to follow Darcy's law, but this has not been properly validated. The main objective of this study is to validate the applicability of Darcy's law for loess. For this purpose, we conducted constant-head permeability experiments and merc ...
DOI:
10.1016/j.enggeo.2020.105483

18. Peristaltic pump-assisted zirconium nanoparticle-based pipette-tip solid phase extraction for the determination of cobalt by slotted quartz tube-flame atomic absorption spectrophotometry

Author:
Tekin, Zeynep; Borahan, Tülay; Özdoğan, Nizamettin; Bakırdere, Sezgin
Source:
Analytical methods 2020 v.12 no.9 pp. 1244-1249
ISSN:
1759-9679
Subject:
soil sampling,   etc   ; adsorbents; atomic absorption spectrometry; cobalt; detection limit; nanoparticles; pH; quartz; solid phase extraction; zirconium;     Show all 10 Subjects
Abstract:
... In this work, a novel, efficient, simple and green solid phase extraction (SPE) method based on a pipette tip filled with zirconium nanoparticles (Zr-NPs) was developed for the sensitive determination of cobalt in soil samples via slotted quartz tube-flame atomic absorption spectrophotometry (SQT-FAAS). Zirconium nanoparticles providing repeatable and reproducible signals of the analyte were synth ...
DOI:
10.1039/c9ay02762a

19. Design of a degenerate primer pair to target a bacterial functional community: The hppd bacterial gene coding for the enzyme targeted by herbicides, a study case

Author:
Thiour-Mauprivez, C.; Devers-Lamrani, M.; Mounier, A.; Beguet, J.; Spor, A.; Calvayrac, C.; Barthelmebs, L.; Martin-Laurent, F.
Source:
Journal of microbiological methods 2020 v.170 pp. 105839
ISSN:
0167-7012
Subject:
soil sampling,   etc   ; genes; herbicides; high-throughput nucleotide sequencing; oligodeoxyribonucleotides; quantitative polymerase chain reaction; soil bacteria;     Show all 7 Subjects
Abstract:
... The present work aimed to design a degenerate primer pair to target a large part of the hppd soil bacterial community, possibly affected by herbicides. We validated these primers by qPCR and high-throughput sequencing analysis of soil samples. ...
DOI:
10.1016/j.mimet.2020.105839

20. Zn/Pb Concentration Ratios Emphasize Spatiotemporal Airborne Metal Dynamics in Soils Under Different Land Use

Author:
van Oort, Folkert; Monna, Fabrice; Garnier, Stéphane
Source:
Water, air, and soil pollution 2020 v.231 no.3 pp. 109
ISSN:
0049-6979
Subject:
soil sampling,   etc   ; arable soils; forest soils; forests; land use; lead; plowing; pollutants; pollution; wetlands; zinc;     Show all 11 Subjects
Abstract:
... Zinc (Zn) and lead (Pb) concentrations were measured in 173 samples collected in soils under forest, wetland, and arable land around a Zn smelter plant that stopped activity in the 1960s. The adopted sampling strategy consisted in collecting 0–30-cm-depth samples from all soils, tilled or not, in order to harmonize the analyzed soil volume to that of plowed soils. Airborne deposition was modeled a ...
DOI:
10.1007/s11270-020-04478-1