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1. Re-recognizing the impact of particle shape on physical and mechanical properties of sandy soils: A numerical study

Author:
Lu, Zhichun; Yao, Aiguo; Su, Aijun; Ren, Xingwei; Liu, Qingbing; Dong, Shan
Source:
Engineering geology 2019 v.253 pp. 36-46
ISSN:
0013-7952
Subject:
sandy soils,   etc   ; models; quartz; sand; shear strength;     Show all 5 Subjects
Abstract:
... The particle shape created by geological processes is an essential characteristic that determines the physical and mechanical properties of sandy soils. However, the nature of the arbitrary shape and the individual volume of particles in natural sand have been given scant regard. In this study, we constructed a particle flow code (PFC) model using a number of clumps with random irregular shapes (c ...
DOI:
10.1016/j.enggeo.2019.03.011

2. Designing singular jet grouting column for sandy soils

Author:
Karahan, Gulsah Nur; Sivrikaya, Osman
Source:
Environmental earth sciences 2018 v.77 no.12 pp. 448
ISSN:
1866-6280
Subject:
sandy soils,   etc   ; fluid drilling; models; soil density;     Show all 4 Subjects
Abstract:
... In this study, the bearing capacity and settlement values of jet grouting columns with the same diameter in very loose and loose sandy soils were estimated by theoretical approaches and numerical analysis depending on the change in the length of the jet grout columns and soil relative densities, and those values were compared with each other. The changes in bearing capacity and settlement values o ...
DOI:
10.1007/s12665-018-7650-9

3. Philhammus ambouli Schawaller and Steiner (Coleoptera: Tenebrionidae: Cnemeplatiini), New Species from Djibouti

Author:
Schawaller, Wolfgang; Steiner, Warren E.
Source:
TheColeopterists' bulletin 2018 v.72 no.1 pp. 129-133
ISSN:
0010-065X
Subject:
sandy soils,   etc   ; Tenebrionidae; new species; shrublands; Djibouti;     Show all 5 Subjects
Abstract:
... A new species of Philhammus Fairmaire (Coleoptera: Tenebrionidae: Cnemeplatiini) is described from Djibouti, Horn of Africa, and compared to other known species of the genus. Members of this species were collected at ultraviolet lights in low, thorny, desert scrub vegetation and are presumed to inhabit loose, sandy soils. A key to the African and Arabian species of Philhammus and a review of liter ...
DOI:
10.1649/0010-065X-72.1.129

4. Conserving bees in destroyed landscapes: The potentials of reclaimed sand mines

Author:
Seitz, Nicola; vanEngelsdorp, Dennis; Leonhardt, Sara D.
Source:
Global ecology and conservation 2019 v.19 pp. e00642
ISSN:
2351-9894
Subject:
sandy soils,   etc   ; bees; habitat destruction; habitats; landscapes; meadows; nesting; roadsides; sand; species diversity; Maryland;     Show all 11 Subjects
Abstract:
... Sand mines represent anthropogenically impacted habitats found worldwide, which bear potential for bee conservation. Although floral resources can be limited at these habitats, vegetation free patches of open sandy soils and embankments may offer good nesting possibilities for sand restricted and other bees. We compared bee communities as found in three reclaimed sand mines and at adjacent roadsid ...
DOI:
10.1016/j.gecco.2019.e00642

5. Impacts of different environmental factors on tunnelling behaviour of the subterranean termite Odontotermes formosanus (Shiraki)

Author:
Xu, Huan; Zhu, Qiankun; Hu, Wei; Kim, Kilnam; Lei, Chaoliang; Xiang, Yahong; Huang, Qiuying
Source:
Ethology, ecology & evolution 2019 v.31 no.3 pp. 231-239
ISSN:
1828-7131
Subject:
sandy soils,   etc   ; Odontotermes; ambient temperature; sand; subterranean termites; water content; China;     Show all 7 Subjects
Abstract:
... The subterranean termite Odontotermes formosanus (Shiraki) is one of the most serious pests of dikes and dams in China, and can build large subterranean cavities inside earthen dikes and dams through workers’ tunnelling behaviour. For a better understanding of underground tunnelling strategies of O. formosanus, we used the tunnelling device to investigate the effect of substrate type, moisture con ...
DOI:
10.1080/03949370.2018.1561524

6. Characterisation comparison of polysaccharides from Dioscorea opposita Thunb. growing in sandy soil, loessial soil and continuous cropping

Author:
Ma, Fanyi; Wang, Ruijiao; Zhu, Jinhua; Zhang, Yun; Wang, Yong; Hu, Weiping; Bell, Alan E.; Liu, Xiuhua
Source:
International journal of biological macromolecules 2019 v.126 pp. 776-785
ISSN:
0141-8130
Subject:
sandy soils,   etc   ; Dioscorea oppositifolia; Dioscorea polystachya; allelopathy; continuous cropping; galacturonic acid; glucose; pH; starch; yams;     Show all 10 Subjects
Abstract:
... This study compared the characterisations of polysaccharides from Chinese yam (Dioscorea opposita Thunb.) growing in sandy soil (SSCY), loessial soil (LSCY) and second-year continuous cropping (CCCY). SSCY contained the highest total polysaccharides (36.55%) and 80.19% glucose, CCCY from sandy soil obtained 24.55% polysaccharides with 43.66% glucose, whereas LSCY contained 27.54% total polysacchar ...
DOI:
10.1016/j.ijbiomac.2018.12.259

7. Cyclic resistance ratio of pleistocene-age sands from the South Carolina coastal plain

Author:
Hasek, Michael J.; Gassman, Sarah L.
Source:
Engineering geology 2019 v.251 pp. 158-171
ISSN:
0013-7952
Subject:
sandy soils,   etc   ; clay fraction; coastal plains; fabrics; laboratory experimentation; liquefaction; sand; South Carolina;     Show all 8 Subjects
Abstract:
... Field and laboratory tests were performed on sandy soils from three Pleistocene-age sites in the South Carolina Coastal Plain to investigate the age–related resistance to liquefaction. Reported research indicates that liquefaction resistance of sands increases with the age of the deposit, and that liquefaction may reset the aging clock. The stress-controlled cyclic triaxial test was used to determ ...
DOI:
10.1016/j.enggeo.2019.02.006

8. Evaluation of Two Products Recently Introduced as Nitrification Inhibitors

Author:
Goos, R. Jay
Source:
Communications in soil science and plant analysis 2019 v.50 no.5 pp. 503-511
ISSN:
1532-2416
Subject:
sandy soils,   etc   ; ammonium thiosulfate; dicyandiamide; liquid fertilizers; microencapsulation; nitrapyrin; nitrification; nitrification inhibitors; polymers; urea;     Show all 10 Subjects
Abstract:
... This study compared the relative effectiveness of two products recently introduced as nitrification inhibitors with other materials used to inhibit nitrification. Four soils were treated with 0, 0.2, 1, 5, and 25 mg kg⁻¹ of nitrapyrin (NP), a new microencapsulated nitrapyrin product (ENP), dicyandiamide (DCD), a new maleic-itaconic polymer product (MIP), and ammonium thiosulfate (ATS). The soils w ...
DOI:
10.1080/00103624.2019.1566466

9. Morphogenesis and Molecular Phylogeny of a Soil Ciliate Uroleptoides longiseries (Foissner, Agatha and Berger, 2002) Berger 2008 (Ciliophora, Hypotrichia)

Author:
Wang, Jingyi; Li, Jingbao; Qi, Shuyan; Warren, Alan; Shao, Chen
Source:
Thejournal of eukaryotic microbiology 2019 v.66 no.2 pp. 334-342
ISSN:
1066-5234
Subject:
sandy soils,   etc   ; Ciliophora; morphogenesis; nucleotide sequences; phylogeny; ribosomal DNA; staining; China; Yellow River;     Show all 9 Subjects
Abstract:
... Morphogenesis of the hypotrich ciliate Uroleptoides longiseries, isolated from sandy soil beside the Yellow River, Suide, Yulin, Shaanxi Province, China, was investigated using protargol staining. The main events during binary fission are as follows: (1) the long frontoventral row is formed by a single anlage; (2) five frontoventral‐transverse cirral anlagen are formed in primary mode; (3) only th ...
DOI:
10.1111/jeu.12674

10. Reuse of waste tire textile fibers as soil reinforcement

Author:
Abbaspour, Mohsen; Aflaki, Esmail; Moghadas Nejad, Fereidoon
Source:
Journal of cleaner production 2019 v.207 pp. 1059-1071
ISSN:
0959-6526
Subject:
sandy soils,   etc   ; burning; clay; clay soils; compression strength; laboratory experimentation; tensile strength; textile fibers; tires; wastes;     Show all 10 Subjects
Abstract:
... In recent decades, many geotechnical engineering researchers have used End of Life Tires (ELT) in different shapes for the purpose of soil reinforcement. One of the sub-products that are generated during the treatment of ELT are Waste Tire Textile Fibers (WTTF). These fibers are classified as special and hazardous wastes. Contrary to international laws, these wastes are burnt or buried, leading to ...
DOI:
10.1016/j.jclepro.2018.09.253

11. Intermittent flooding of organic‐rich soil promotes the formation of denitrification hot moments and hot spots

Author:
Tomasek, Abigail A.; Hondzo, Miki; Kozarek, Jessica L.; Staley, Christopher; Wang, Ping; Lurndahl, Nicole; Sadowsky, Michael J.
Source:
Ecosphere 2019 v.10 no.1 pp. e02549
ISSN:
2150-8925
Subject:
sandy soils,   etc   ; alluvial soils; anthropogenic activities; aquatic ecosystems; denitrification; genes; hydrology; landscapes; nitrates; nitrogen cycle;     Show all 10 Subjects
Abstract:
... Anthropogenic activities have altered the nitrogen cycle, necessitating management on the landscape level. Isolated time periods and areas, termed hot moments and hot spots, respectively, frequently account for a large percentage of nitrate removal in aquatic ecosystems. A series of experiments were conducted to determine the effect of hydrologic connectivity on denitrification rates, gene abundan ...
DOI:
10.1002/ecs2.2549

12. Leaching behavior of pharmaceuticals and their metabolites in the soil environment

Author:
Wojsławski, Jerzy; Białk-Bielińska, Anna; Stepnowski, Piotr; Dołżonek, Joanna
Source:
Chemosphere 2019 v.231 pp. 269-275
ISSN:
0045-6535
Subject:
sandy soils,   etc   ; adsorption; animal breeding; drugs; edaphic factors; fertilizers; groundwater; humans; leaching; loam soils; metabolites; pollutants; rain;     Show all 13 Subjects
Abstract:
... Pharmaceuticals constitute a significant group of emerging pollutants (EPs). The use of pharmaceuticals in animal breeding causes them to reach the soil environment in excrement and fertilizers. Depending on their chemical properties, pharmaceuticals can be sorbed to the soil or be washed out with rainfall and eventually be entered into groundwater. This paper evaluates the mobility of tramadol (T ...
DOI:
10.1016/j.chemosphere.2019.05.031

13. Microplastics undergo accelerated vertical migration in sand soil due to small size and wet-dry cycles

Author:
O'Connor, David; Pan, Shizhen; Shen, Zhengtao; Song, Yinan; Jin, Yuanliang; Wu, Wei-Min; Hou, Deyi
Source:
Environmental pollution 2019 v.249 pp. 527-534
ISSN:
0269-7491
Subject:
sandy soils,   etc   ; aquifers; cities; fauna; liquids; meteorological data; microplastics; migratory behavior; polyethylene; polypropylenes; receptors; risk; wet-dry cycles; China;     Show all 14 Subjects
Abstract:
... Microplastics (MPs) are an emerging concern and potential risk to marine and terrestrial environments. Surface soils are reported to act as a sink. However, MP vertical mobility in the subsurface remains uncertain due to a lack of scientific data. This study focused on MP penetration in sand soil column experiments. Here we report the mobility of five different MPs, which consisted of polyethylene ...
DOI:
10.1016/j.envpol.2019.03.092

14. Quantifying and correcting for clay content effects on soil water measurement by reflectometers

Author:
Singh, J.; Lo, T.; Rudnick, D.R.; Irmak, S.; Blanco-Canqui, H.
Source:
Agricultural water management 2019 v.216 pp. 390-399
ISSN:
0378-3774
Subject:
sandy soils,   etc   ; calcium chloride; calibration; clay; clay fraction; clay soils; mixing; salinity; soil water; statistical models; surface area; temperature;     Show all 12 Subjects
Abstract:
... The presence of clay particles increases the specific surface area of a soil and can affect the calibration of electromagnetic soil water sensors including reflectometers. To quantify and correct for this effect in two relatively new reflectometers, three TDR315 and three CS655 sensors were installed in each of five soils with clay content ranging from 5 to 49%. As the soils were dried in a temper ...
DOI:
10.1016/j.agwat.2019.02.024

15. Natural radioactivity and radon emanation coefficient in the soil of Ninh Son region, Vietnam

Author:
Thu, Huynh Nguyen Phong; Thang, Nguyen Van; Loan, Truong Thi Hong; Dong, Nguyen Van; Hao, Le Cong
Source:
Applied geochemistry 2019 v.104 pp. 176-183
ISSN:
0883-2927
Subject:
sandy soils,   etc   ; forests; gamma radiation; geochemistry; radioactivity; radionuclides; radium; radon; soil air; soil sampling; spectroscopy; thorium; uranium; weathering; Vietnam;     Show all 15 Subjects
Abstract:
... The natural radioactivity (238U, 226Ra, 232Th and 40K) and radon emanation coefficient for 57 soil samples belonging to alluvial, red, forest surface, slip-debris, metamorphic and sandy soil of the Ninh Son region in Ninh Thuan province have been determined. The soil gas radon was measured by in-situ with RAD7 radon monitor coupled with a soil gas probe while activity concentrations of 238U, 226Ra ...
DOI:
10.1016/j.apgeochem.2019.03.019

16. Microbially Induced Calcite Precipitation for Seepage Control in Sandy Soil

Author:
Gao, Yufeng; Tang, Xinyi; Chu, Jian; He, Jia
Source:
Geomicrobiology journal 2019 v.36 no.4 pp. 366-375
ISSN:
1521-0529
Subject:
sandy soils,   etc   ; bacteria; calcite; calcium; calcium chloride; irrigation canals; liquids; mercury; permeability; resistance to penetration; seepage; soil sampling; urea;     Show all 13 Subjects
Abstract:
... Microbially induced calcite precipitation (MICP) can reduce the permeability of soil by reducing the pore volumes. A MICP-based soil improvement method to control water leakage in irrigation channels and reservoirs built on sandy soil grounds is presented in this article. Using this method, a low-permeable hard crust can be formed at the soil surfaces. An experimental study was carried out to eval ...
DOI:
10.1080/01490451.2018.1556750

17. BSE infectivity survives burial for five years with only limited spread

Author:
Somerville, Robert A.; Fernie, Karen; Smith, Allister; Bishop, Keith; Maddison, Ben C.; Gough, Kevin C.; Hunter, Nora
Source:
Archives of virology 2019 v.164 no.4 pp. 1135-1145
ISSN:
0304-8608
Subject:
sandy soils,   etc   ; bioassays; bovine spongiform encephalopathy; brain; cattle; chronic wasting disease; clay; filtrates; groundwater; lysimeters; pathogenicity; rain; scrapie; skull;     Show all 14 Subjects
Abstract:
... The carcasses of animals infected with bovine spongiform encephalopathy (BSE), scrapie or chronic wasting disease (CWD) that remain in the environment (exposed or buried) may continue to act as reservoirs of infectivity. We conducted two experiments under near-field conditions to investigate the survival and dissemination of BSE infectivity after burial in a clay or sandy soil. BSE infectivity was ...
DOI:
10.1007/s00705-019-04154-8

18. Post-pyrogenic Evolution of Sandy Soils under Pine Forests in the Baikal Region

Author:
Gyninova, A. B.; Dyrzhinov, Zh. D.; Kulikov, A. I.; Gyninova, B. D.; Gonchikov, B. N.
Source:
Eurasian soil science 2019 v.52 no.4 pp. 414-425
ISSN:
1064-2293
Subject:
sandy soils,   etc   ; Arenosols; Pinus; bleaching; calcium; charcoal; coniferous forests; forest fires; humus; microparticles; soil properties; trees; wind erosion;     Show all 13 Subjects
Abstract:
... The development of sandy soils under pine forests and the influence of forest fires on the soil properties have been studied in the Baikal region, The profile of background soils consists of a litter layer and a thin humus-accumulative horizon with features of grain bleaching in the lower part. In the WRB system, such soils are classified as Eutric Arenosols (Ochric). They have an acid reaction, f ...
DOI:
10.1134/S1064229319040082

19. Agronomic and Anatomical Performance of Wheat Genotypes in Response to Some Weed Control Treatments Under Sandy Soil Conditions

Author:
El-Metwally, I. M.; Arafa, S. A.
Source:
Gesunde Pflanzen 2019 v.71 no.1 pp. 9-18
ISSN:
0367-4223
Subject:
sandy soils,   etc   ; cell walls; cultivars; genotype; grain yield; herbicides; leaves; manual weed control; plant height; soil quality; straw; wheat; Egypt;     Show all 13 Subjects
Abstract:
... Field evaluations of the efficiency of wheat genotypes and weed management treatments (pyroxsulam, isoproturon+diflufenican, mesosulfuron-methyl, hand weeding and control) and their interactive effects on wheat yield and associated weeds were performed during two successive seasons (2014/2015 and 2015/2016) at the agricultural experimental station of the National Research Centre, Nubaria, Egypt. R ...
DOI:
10.1007/s10343-018-0436-x

20. Effects of mosaic-pattern shrub patches on runoff and sediment yield in a wind-water erosion crisscross region

Author:
Lu, Rong; Liu, Yi-Fan; Jia, Chao; Huang, Ze; Liu, Yu; He, Honghua; Liu, Bing-Ru; Wang, Zhan-Jun; Zheng, Jiyong; Wu, Gao-Lin
Source:
Catena 2019 v.174 pp. 199-205
ISSN:
0341-8162
Subject:
sandy soils,   etc   ; Artemisia; canopy; landscapes; microhabitats; rain; regression analysis; runoff; sediment yield; sediments; shrubs; soil quality; vegetation; water erosion;     Show all 14 Subjects
Abstract:
... Shrub patch fragmentation makes a substantial contribution to soil erosion in sandy regions. This study aimed to analyze the effects of mosaic-pattern shrub patch size on runoff and sedimentation in a wind-water erosion crisscross region. The influence of shrub patch size on runoff and sedimentation, and on several soil physical and vegetation factors was evaluated in a sandy Chinese landscape. Ba ...
DOI:
10.1016/j.catena.2018.11.022