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1. Automated segmentation of gravel particles from depth images of gravel-soil mixtures

Author:
Rahmani, Hossein; Scanlan, Craig; Nadeem, Uzair; Bennamoun, Mohammed; Bowles, Richard
Source:
Computers & geosciences 2019 v.128 pp. 1-10
ISSN:
0098-3004
Subject:
soil sampling,   etc   ; algorithms; automation; computers; gravel; soil;     Show all 6 Subjects
Abstract:
... We propose an image-based technique to measure the volume, weight and the size distribution of gravel particles in a gravel-soil mixture. The proposed method uses 3D scanning and a surface reconstruction algorithm to generate a high-resolution depth image, which is then used to accurately estimate the volume and weight of each gravel particle. The proposed method is evaluated on several gravel soi ...
DOI:
10.1016/j.cageo.2019.03.005

2. Pore detection in 3‐D CT soil samples through an improved sub‐segmentation method

Author:
Ojeda‐Magaña, B.; Quintanilla Domínguez, J.; Ruelas, R.; Martín‐Sotoca, J. J.; Tarquis, A. M.
Source:
European journal of soil science 2019 v.70 no.1 pp. 66-82
ISSN:
1351-0754
Subject:
soil sampling,   etc   ; algorithms; computed tomography; geometry; image analysis; scanners;     Show all 6 Subjects
Abstract:
... X‐ray computer tomography (CT) is a non‐invasive technique for image acquisition. Recent technological advances have enabled reliable and high‐resolution images to be obtained. In soil samples, for example, this subserves the identification of pores and their structure and the analysis of their geometric characteristics. However, the lack of contrast between pores and solids in soil samples makes ...
DOI:
10.1111/ejss.12728

3. A method to determine the soil bulk density of undisturbed samples with non-isodiametric shape

Author:
Freitas, Karllas Stival; Armindo, Robson André; Pires, Luiz Fernando; Filho, Vitoldo Swinka; Júnior, Sebastião Ribeiro
Source:
Soil & tillage research 2019 v.191 pp. 344-352
ISSN:
0167-1987
Subject:
soil sampling,   etc   ; Cambisols; Ferralsols; computed tomography; equations; pedotransfer functions; soil density;     Show all 7 Subjects
Abstract:
... The soil bulk density (ρb) determination is a hard task when large areas are involved and non-isodiametric undisturbed samples analysed. The use of pedotransfer functions (PTFs) can support the estimation of ρb in samples of irregular shape. The objective of this study was to examine three pedotransfer equations in order to estimate ρb of irregular shaped samples taken from a Cambisol, a Nitosol a ...
DOI:
10.1016/j.still.2019.04.007

4. Effects of environmental and temporal factors on Glomeromycotina spores in sand dunes along the Gulf of Valencia (Spain)

Author:
Guillén, Alberto; Mesquita-Joanes, Francesc; Peris, Juan Bautista; Arrillaga, Isabel
Source:
Fungal ecology 2019 v.40 pp. 127-139
ISSN:
1754-5048
Subject:
soil sampling,   etc   ; Diversisporaceae; Gigasporaceae; Glomeraceae; anthropogenic activities; dunes; habitats; soil; spores; spring; symbiosis; vegetation; Spain;     Show all 13 Subjects
Abstract:
... AMF symbiosis in sand dunes is the key for maintenance of stable vegetation. The main goal of this work was to determine the effects of environmental and temporal factors on AMF living in sand dunes (Gulf of Valencia, Spain). Soil samples were collected seasonally at 6 sites, during 2 yrs, from three habitats and four plant species and the frequency and relative abundance of AMF was examined. AMF ...
DOI:
10.1016/j.funeco.2018.07.001

5. Temporal–spatial distribution and diastereoisomer pattern of hexabromocyclododecane in the vicinity of a chemical plant

Author:
Wang, Xinlei; Sun, Ruirui; Chen, Yuedong; Zhang, Xu; Cui, Zhaojie
Source:
Journal of environmental sciences (China) 2019 v.82 pp. 203-212
ISSN:
1001-0742
Subject:
soil sampling,   etc   ; bromination; coasts; diastereomers; hexabromocyclododecane; normal values; pollution; soil; wind direction; China;     Show all 10 Subjects
Abstract:
... Hexabromocyclododecane (HBCD) is an effective brominated flame-retardant additive, which is mainly produced in the coastal area of China. This study collected soil samples from a HBCD production plant and its surrounding area in Weifang, Shandong Province, China, and analyzed the temporal–spatial distribution of HBCD and its diastereoisomers in soil. The analysis results showed that the concentrat ...
DOI:
10.1016/j.jes.2019.03.010

6. Samples disturbance overestimates phosphorus adsorption capacity in soils under long-term application of pig slurry

Author:
Gatiboni, Luciano Colpo; Schmitt, Djalma Eugênio; Cassol, Paulo Cezar; Comin, Jucinei José; Heidemann, Joice Crescêncio; Brunetto, Gustavo; Nicoloso, Rodrigo da Silveira
Source:
Archiv für Acker- und Pflanzenbau und Bodenkunde 2019 v.65 no.9 pp. 1262-1272
ISSN:
1476-3567
Subject:
soil sampling,   etc   ; Acrisols; Ferralsols; Nitisols; adsorption; grinding; models; phosphorus; pig manure; porosity; soil structure;     Show all 11 Subjects
Abstract:
... Grinding soil for analysis causes the destruction of aggregates and may expose adsorption sites that would not be available for adsorption in the soil with preserved structure. The study aimed to evaluate the adsorption of P in three soils with and without preserved structure, submitted to pig slurry (PS) application for a long time. Three soils (Acrisol, Ferralssol and Nitisol) with contrasting t ...
DOI:
10.1080/03650340.2018.1562274

7. Biosynthesis of 2,5-furan dicarboxylic acid by Aspergillus flavus APLS-1: Process optimization and intermediate product analysis

Author:
Rajesh, Rajendran Omana; Godan, Tharangattumana Krishnan; Rai, Amit Kumar; Sahoo, Dinabandhu; Pandey, Ashok; Binod, Parameswaran
Source:
Bioresource technology 2019 v.284 pp. 155-160
ISSN:
0960-8524
Subject:
soil sampling,   etc   ; Aspergillus flavus; biomass; biosynthesis; biotransformation; experimental design; intermediate product; microorganisms;     Show all 8 Subjects
Abstract:
... The aim of the present study was to develop an eco-friendly biological process for the production of 2,5-furan dicarboxylic acid (FDCA) from 5-hydroxy methylfurfuraldehyde (HMF) using microorganisms. Microorganisms were isolated from the soil samples and evaluated for its biotransformation efficiency. Among the isolates, Aspergillus flavus APLS-1 was found to be potent for efficient conversion of ...
DOI:
10.1016/j.biortech.2019.03.105

8. Land inundation and cropping intensity influences on organic carbon in the agricultural soils of Bangladesh

Author:
Uddin, M.J.; Hooda, Peter S.; Mohiuddin, A.S.M.; Smith, Mike; Waller, Martyn
Source:
Catena 2019 v.178 pp. 11-19
ISSN:
0341-8162
Subject:
soil sampling,   etc   ; agricultural soils; land use; landscapes; rivers; soil organic carbon; Bangladesh; Ganges River;     Show all 8 Subjects
Abstract:
... Land inundation is a common occurrence in Bangladesh, mainly due to the presence of two major river systems – the Brahmaputra and the Ganges. Inundation influences land use and cropping intensity. However, there is little information on the influences of the extent of flooding and cropping intensity has on soil organic carbon (SOC), particularly at the landscape level. To investigate these influen ...
DOI:
10.1016/j.catena.2019.03.002

9. Different effects of NaCl and Na2SO4 on the carbon mineralization of an estuarine wetland soil

Author:
Li, Yunzhao; Yang, Jisong; Yu, Miao; Zhao, Wei; Xiao, Ying; Zhou, Di; Zhan, Chao; Yu, Yang; Zhang, Jingjing; Lv, Zhenbo; Yu, Junbao
Source:
Geoderma 2019 v.344 pp. 179-183
ISSN:
0016-7061
Subject:
soil sampling,   etc   ; carbon; estuaries; mineralization; salinity; sodium chloride; sodium sulfate; soil amendments; wetland soils; wetlands;     Show all 10 Subjects
Abstract:
... NaCl and Na2SO4 salts often dominate in estuarine wetland soils. However, it is unclear how different salt types affect carbon mineralization as a response to salinity levels. In this study, soil samples (0–13 cm) collected in the Liaohe estuarine wetland were amended with NaCl and Na2SO4 salts at five salt levels: 1 mS·cm−1 (EC1), 3 mS·cm−1 (EC3), 5 mS·cm−1 (EC5), 10 mS·cm−1 (EC10) and 18 mS·cm−1 ...
DOI:
10.1016/j.geoderma.2019.02.035

10. The effect of soil type on the extraction of insensitive high explosive constituents using four conventional methods

Author:
Temple, T.; Cipullo, S.; Galante, E.; Ladyman, M.; Mai, N.; Parry, T.; Coulon, F.
Source:
The Science of the total environment 2019 v.668 pp. 184-192
ISSN:
0048-9697
Subject:
soil sampling,   etc   ; chemical analysis; environmental law; manufacturing; mixing; pH; particle size; risk; soil types; solvents; sonication;     Show all 11 Subjects
Abstract:
... Explosive contamination is commonly found at military and manufacturing sites (Hewitt et al., 2005; Clausen et al., 2004; Walsh et al., 2013). Under current environmental legislation the extent of the contamination must be characterized by soil sampling and subsequent separation of the explosive contaminants from the soil matrix by extraction to enable chemical analysis and quantification (Dean, 2 ...
DOI:
10.1016/j.scitotenv.2019.02.359

11. Spatial properties of soil analyses and airborne measurements for reconnaissance of soil contamination by 137Cs after Fukushima nuclear accident in 2011

Author:
Masoudi, Pedram; Le Coz, Mathieu; Cazala, Charlotte; Saito, Kimiaki
Source:
Journal of environmental radioactivity 2019 v.202 pp. 74-84
ISSN:
0265-931X
Subject:
soil sampling,   etc   ; accidents; anisotropy; cesium; data collection; georeferencing; radioactivity; radionuclides; soil; surveys; tiles;     Show all 11 Subjects
Abstract:
... Following Fukushima nuclear disaster, several data gathering campaigns surveyed the radionuclide propagation in the environment. However, the acquired datasets do not have the same sampling dimension. For example, the airborne measurements are some sort of averaging over a circular field of view, beneath the sensor; while the soil analyses are much more punctual. The objective of this work is to c ...
DOI:
10.1016/j.jenvrad.2018.11.014

12. Specific quorum sensing molecules of ammonia oxidizers and their role during ammonium metabolism in Zhalong wetland, China

Author:
Liu, Fengqin; Zhang, Yupeng; Liang, Hong; Gao, Dawen
Source:
The Science of the total environment 2019 v.666 pp. 1106-1113
ISSN:
0048-9697
Subject:
soil sampling,   etc   ; Archaea; Nitrosomonas; ammonia; ammonium; lactones; metabolism; nitrifying bacteria; nitrites; oxidants; quorum sensing; wetlands; China;     Show all 13 Subjects
Abstract:
... The primary challenge of ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) surviving in wetlands are the rapid and unpredictable environmental changes. To adapt to a fluctuant environment, ammonia oxidizers have to communicate with each other via acyl-homoserine lactones (AHLs). In this study, AOA and AOB in the soil samples taken from Zhalong wetland were incubated. Dynamics of ...
DOI:
10.1016/j.scitotenv.2019.02.261

13. Reducing the Leachability and Bioaccessibility of Arsenic in Soils using Supported Nano Titanium Dioxide

Author:
Yang, Peilin; Qin, Fanxin; Dai, Gaochen; Luo, Qian; Jiang, Xin; Huang, Xianfei
Source:
Soil & sediment contamination 2019 v.28 no.4 pp. 347-359
ISSN:
1549-7887
Subject:
soil sampling,   etc   ; arsenic; bioavailability; leaching; polluted soils; sol-gel processing; titanium dioxide; toxicity;     Show all 8 Subjects
Abstract:
... We herein report the development and testing of a novel material, namely activated carbon-supported nano titanium dioxide (ACTD) for the immobilization of arsenic in soil. This material, which was prepared using a sol-gel method, effectively reduced the toxicity characteristic leaching procedure (TCLP) leachability and physiologically based extraction test (PBET) bioaccessibility of As(III) in soi ...
DOI:
10.1080/15320383.2019.1575335

14. Changes in recovery of native and applied phosphorus with time as affected by soil properties in some calcareous soils

Author:
Oustan, Shahin; Tofighi, Hassan
Source:
Archiv für Acker- und Pflanzenbau und Bodenkunde 2019 v.65 no.6 pp. 833-845
ISSN:
1476-3567
Subject:
soil sampling,   etc   ; calcareous soils; field capacity; greenhouses; models; phosphorus; water content;     Show all 7 Subjects
Abstract:
... In an attempt to investigate variations in availability of native and applied phosphorus (P) with time, twenty five calcareous soil samples were treated with 0, 50 and 500 mg P kg⁻¹ soil and incubated at 80–90% of field capacity moisture content in an open door glasshouse for a period of one year. Soil samples were taken out at certain intervals for P extraction with Olsen extractant under moist c ...
DOI:
10.1080/03650340.2018.1532077

15. Evaluating of calculation models for the unfrozen water content of freezing soils

Author:
Lu, Jianguo; Pei, Wansheng; Zhang, Xiyin; Bi, Jun; Zhao, Tao
Source:
Journal of hydrology 2019
ISSN:
0022-1694
Subject:
soil sampling,   etc   ; cold; cold zones; engineering; freezing; frost heave; mathematical models; soil water; temperature; water content;     Show all 10 Subjects
Abstract:
... The models for calculating the unfrozen water content of freezing soils (variation of the unfrozen water contents of soils with temperature) are very important for numerical simulations regarding hydro-thermo-mechanical interaction. Based on the approximately published 250 laboratory unfrozen water content data from 24 soil samples and around 5 years field observed data, this paper evaluated the f ...
DOI:
10.1016/j.jhydrol.2019.05.031

16. Accumulation of U, Th, Pb, V, Rb, and Ag in wild mushrooms Macrolepiota procera (Scop.) Singer from Goč, Serbia

Author:
Vukojević, Vesna; Đurđić, Slađana; Mutić, Jelena
Source:
Environmental science and pollution research international 2019 v.26 no.13 pp. 13147-13158
ISSN:
0944-1344
Subject:
soil sampling,   etc   ; Macrolepiota; atomic absorption spectrometry; bioaccumulation factor; lead; mushrooms; silver; soil; thorium; uranium; Serbia;     Show all 11 Subjects
Abstract:
... In this study, the content of U, Th, Pb, V, Rb, and Ag in 19 soil samples from unpolluted Goč Mountain area (Serbia) was determined. The same elements were determined in 19 Macrolepiota procera samples, separately for caps and stipes. Soil samples were subjected to the BCR sequential extraction procedure. Element contents were determined by inductively coupled plasma mass spectrometry (ICP-MS). Ob ...
DOI:
10.1007/s11356-019-04723-z

17. Bioconcentration of Cd and Zn in the soils of an uncontaminated forest in the Quebec Laurentians

Author:
Munro, L.; Courchesne, F.
Source:
Biogeochemistry 2019 v.143 no.3 pp. 293-312
ISSN:
0168-2563
Subject:
soil sampling,   etc   ; B horizons; Betula; cadmium; canopy; forest ecosystems; forests; leaves; phytoaccumulation; trees; watersheds; zinc; Quebec;     Show all 13 Subjects
Abstract:
... Fine-scale trace element (TE) concentration patterns exist in soils that were never exposed to the direct deposition of TE in the past. We aimed to understand the role of vegetation, in particular trees, in defining these spatial patterns in the soil horizons of an uncontaminated forest ecosystem. Living tree leaves and surface soil samples (L, F, and B horizons) were collected from a ca. 1400 m² ...
DOI:
10.1007/s10533-019-00562-9

18. Characterizing the spatial variability of soil particle size distribution in an underground coal mining area: An approach combining multi-fractal theory and geostatistics

Author:
Wang, Jinman; Zhang, Jiarui; Feng, Yu
Source:
Catena 2019 v.176 pp. 94-103
ISSN:
0341-8162
Subject:
soil sampling,   etc   ; coal; deformation; geostatistics; land restoration; mining; particle size distribution; soil physical properties; subsidence; China;     Show all 10 Subjects
Abstract:
... Long-term underground coal mining activities results in severe surface deformation and land subsidence, altering soil physical properties significantly. Soil particle size distribution (PSD) is a fundamental physical attribute affecting many other soil properties. Therefore, understanding the variability of PSD is crucial to conduct targeted land rehabilitation. In present study, a novel method co ...
DOI:
10.1016/j.catena.2019.01.011

19. Depleted uranium assessment and natural radioactivity monitoring in North West of Iraq over a decade since the last Gulf War

Author:
Salama, E.; El-kameesy, S.U.; Elrawi, Rawaa
Source:
Journal of environmental radioactivity 2019 v.201 pp. 25-31
ISSN:
0265-931X
Subject:
soil sampling,   etc   ; leaching; lead; monitoring; radioactivity; radionuclides; radium; soil; spectroscopy; thorium; uranium; wind; Iraq; Persian Gulf;     Show all 14 Subjects
Abstract:
... For the sake of completeness of the surveillance process concerning the spread of depleted uranium (DU) in the Arabian Gulf region, we have applied a simple gamma spectroscopy technique to evaluate its content in Al Jolan, Nazzal and Askari districts in Al Fallujah area, Iraq for the first time and after more than one decade. The measurements were carried out along the lines of the wars that have ...
DOI:
10.1016/j.jenvrad.2019.01.017

20. Screening and characterization of microorganisms catalyzing (S)-selective oxidation of α,α-disubstituted propanediols

Author:
Kikukawa, Hiroshi; Shimizu, Shigeru; Ota, Nana; Yasohara, Yoshihiko; Ito, Noriyuki; Mitsukura, Koichi; Yoshida, Toyokazu
Source:
Biocatalysis and agricultural biotechnology 2019 v.19 pp. 101108
ISSN:
1878-8181
Subject:
soil sampling,   etc   ; Agromyces; carbon; enantioselectivity; enrichment culture; enzymatic treatment; microorganisms; oxidation; propanediols; screening;     Show all 10 Subjects
Abstract:
... In this study, we attempted to achieve efficient synthesis of (S)-form 2-(hydroxymethyl)-2-methylbutanoic acid (HMMBA) from 2-ethyl-2-methyl-1,3-propanediol (EMPD) using an enzymatic approach. Agromyces sp. E2 was found to produce HMMBA from soil samples through enrichment culture using EMPD as a carbon source. The microbial asymmetric oxidation was characterized, and the highest activity was obse ...
DOI:
10.1016/j.bcab.2019.101108