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1. Change in the bio-uptake of soil phthalates with increasing mulching years: Underlying mechanism and response to temperature rise

Author:
Wang, Shuhan; Yu, Hanxia; Xi, Beidou; Tian, Zaifeng; Wang, Guoan; Tan, Wenbing
Source:
Journal of cleaner production 2021 v.287 pp. 125049
ISSN:
0959-6526
Subject:
sand fraction,   etc   ; decline; global warming; human health; mulching; phthalates; plastic film mulches; prediction; production technology; research; risk; soil pore water; spinach; temperature;     Show all 14 Subjects
Abstract:
... Plastic mulch, which is widely used in agricultural production, releases phthalates to soil–plant systems and thus may pose potential human health risks. There is a growing concern of whether or how the phthalate bio-uptake varies with increasing mulching years, and what is the underlying mechanism and how this variation responds to global warming. Here, we used one of the most common leafy vegeta ...
DOI:
10.1016/j.jclepro.2020.125049

2. Patterns and driving factors of litter decomposition across Chinese terrestrial ecosystems

Author:
Cai, Andong; Liang, Guopeng; Yang, Wen; Zhu, Jie; Han, Tianfu; Zhang, Wenju; Xu, Minggang
Source:
Journal of cleaner production 2021 v.278 pp. 123964
ISSN:
0959-6526
Subject:
sand fraction,   etc   ; biodegradation; carbon; climatic factors; cropland; data collection; energy flow; forests; global warming; grasslands; latitude; lignin; models; nitrogen; nutrients; pH; plant litter; prediction; temperature; terrestrial ecosystems; variance;     Show all 21 Subjects
Abstract:
... Litter decomposition is a vital component of carbon and nutrients cycling and energy flow within terrestrial ecosystems. Understanding the litter decomposition rate with a temperature change of 1 °C (kDD, degree days⁻¹) is critical for quantifying the climate-carbon, nutrients, and energy cycle feedback and predicting the response of ecosystems to climate change. However, the spatial pattern of kD ...
DOI:
10.1016/j.jclepro.2020.123964

3. Impact of preferential flow pathways on phosphorus leaching from typical plastic shed vegetable production soils of China

Author:
Kianpoor Kalkhajeh, Yusef; Huang, Biao; Hu, Wenyou
Source:
Agriculture, ecosystems & environment 2021 v.307 pp. 107218
ISSN:
0167-8809
Subject:
sand fraction,   etc   ; Anthrosols; agricultural management; agriculture; assays; clay; correlation; density; depth; diameter; dyes; ecosystems; effluents; environment; history; leachates; leaching; oxalates; pH; phosphorus; plastics; preferential flow; sampling; vegetable growing; water flow; China;     Show all 26 Subjects
Abstract:
... Despite its importance, the contribution of preferential flow pathways (PFPs) to subsurface phosphorus (P) leaching from heavily-fertilized plastic shed vegetable production (PSVP) soils in China has remained unexplored. To investigate this, five acid fine-textured Orthic Anthrosols and six alkaline coarse-textured Ustic Cambosols intact soil columns (20 cm depth and 15 cm diameter), from two typi ...
DOI:
10.1016/j.agee.2020.107218

4. Enrichment and distribution of metals in surface sediments of the Thanh Hoa coastal area, Viet Nam

Author:
Nhon, Dang Hoai; Thao, Nguyen Van; Lan, Tran Đinh; Ha, Nguyen Manh; Nghi, Duong Thanh; Ha, Tran Manh; Hao, Do Manh; Chien, Nguyen Van; Thanh, Tran Duc
Source:
Regional studies in marine science 2021 v.41 pp. 101574
ISSN:
2352-4855
Subject:
sand fraction,   etc   ; arsenic; cadmium; chromium; coasts; cobalt; copper; environmental quality; iron; lead; lithium; manganese; marine sediments; molybdenum; monitoring; nickel; pollution; risk assessment; risk factors; sustainable development; tin; vanadium; zinc; Vietnam;     Show all 24 Subjects
Abstract:
... Thirty-two surface sediment samples were collected in the Thanh Hoa coastal area, from the shore to a depth of 30 m. Grain sizes and the contents of 14 major and trace metals were measured with the goal of assessing the impact from the mainland to the coastal area of Thanh Hoa.The sand fraction ranged from 0.5 to 82.7%, and the mud fraction ranged from 17.3 to 99.5%.The contents of major and trace ...
DOI:
10.1016/j.rsma.2020.101574

5. Implications of turbulence shear by non-cohesive sediments on the break-up of kaolin flocs

Author:
K.L., Priya; S., Adarsh; Chandra, Venu; Haddout, S.; M.S., Indu
Source:
Regional studies in marine science 2020 v.39 pp. 101427
ISSN:
2352-4855
Subject:
sand fraction,   etc   ; estuaries; flocculation; image analysis; kaolin; models; salinity; sand; turbulent flow;     Show all 9 Subjects
Abstract:
... The present study investigated the role of non-cohesive fraction of sediments on the flocculation of kaolin suspension. The floc characterization was achieved through micro-scale investigations using an image capturing system followed by an image processing technique. Initially, the variations in the characteristics of flocs of kaolin with salinity and turbulence were examined, followed by charact ...
DOI:
10.1016/j.rsma.2020.101427

6. Evaluation of Fecal Sand Clearance in Horses With Naturally Acquired Colonic Sand Accumulation With a Product Containing Probiotics, Prebiotics, and Psyllium

Author:
Hassel, Diana M.; Curley, Taylor; Hoaglund, Elizabeth L.
Source:
Journal of equine veterinary science 2020 v.90 pp. 102970
ISSN:
0737-0806
Subject:
sand fraction,   etc   ; clinical trials; colic; diarrhea; feces; gastrointestinal system; horses; prebiotics; probiotics; psyllium gum; radiography; sand;     Show all 12 Subjects
Abstract:
... Consumption of sand and dirt in horses can cause chronic diarrhea and colic because of irritation and obstruction of the gastrointestinal tract of horses. Prevention has primarily focused on changes in management to reduce the intake of sand and feeding of psyllium products. The purpose of this study was to evaluate the efficacy of a product containing probiotics, prebiotics, and psyllium in the c ...
DOI:
10.1016/j.jevs.2020.102970

7. Topographical and geological variation of effective rainfall for debris-flow occurrence from a large-scale perspective

Author:
Liu, Shuang; Wei, Li; Hu, Kaiheng
Source:
Geomorphology 2020 v.358 pp. 107134
ISSN:
0169-555X
Subject:
sand fraction,   etc   ; climate; landscapes; mass movement; mountains; probability; rain; regression analysis; spatial variation;     Show all 9 Subjects
Abstract:
... Understanding the spatial heterogeneity of the debris-flow rainfall threshold is meaningful for regional warning systems. However, regional topographical and geological impacts have not been well quantified. Using the Hengduan Mountains with distinct climatic, topographical, and geological settings as a typical study area, this study focused on the geological and topographical variations of effect ...
DOI:
10.1016/j.geomorph.2020.107134

8. Temporal instability of soil moisture at a hillslope scale under subtropical hydroclimatic conditions

Author:
Gao, Lei; Peng, Xinhua; Biswas, Asim
Source:
Catena 2020 v.187 pp. 104362
ISSN:
0341-8162
Subject:
sand fraction,   etc   ; cropland; data collection; drought; prediction; rain; soil depth; soil water; storms; topographic slope;     Show all 10 Subjects
Abstract:
... Temporal instability, a condition of soil moisture with unstable spatiotemporal patterns, may occur when the relative roles of the controlling factors change. It impacts the applicability of the temporal stability in the prediction of soil moisture. However, the occurring frequency, degree and underlying hydrological conditions of the temporal instability are far from clear. This study aimed to ex ...
DOI:
10.1016/j.catena.2019.104362

9. Compositional and textural study of modern beach sands in the active volcanic area of the Campania region (southern Italy)

Author:
Morrone, Consuele; Le Pera, Emilia; Marsaglia, Kathleen M.; De Rosa, Rosanna
Source:
Sedimentary geology 2020 v.396 pp. 105567
ISSN:
0037-0738
Subject:
sand fraction,   etc   ; coasts; detritus; provenance; sand; tectonics; texture; volcanic activity; volcanic land; volcanoes; Italy;     Show all 11 Subjects
Abstract:
... The association among volcanism, tectonics and sedimentation may be critical for interpreting the paleogeographic and plate tectonic settings of the past. In modern and ancient sedimentary systems, volcaniclastic fragment classes have been distinguished on the basis of texture and composition. Criteria adopted for their temporal and spatial correlation with source volcanic areas, in terms of type ...
DOI:
10.1016/j.sedgeo.2019.105567

10. Feasibility analysis of treating recycled rock dust as an environmentally friendly alternative material in Ultra-High Performance Concrete (UHPC)

Author:
Yang, Rui; Yu, Rui; Shui, Zhonghe; Gao, Xu; Xiao, Xunguang; Fan, Dingqiang; Chen, Ziao; Cai, Jiajie; Li, Xiaosheng; He, Yongjia
Source:
Journal of cleaner production 2020 v.258 pp. 120673
ISSN:
0959-6526
Subject:
sand fraction,   etc   ; compression strength; concrete; dimensional stability; durability; dust; mechanical properties; models; noise pollution; quartz; risk; sand; soil pollution; wastes;     Show all 14 Subjects
Abstract:
... Quartz sand is a kind of advanced aggregate and can be utilized to produce Ultra-High-Performance-Concrete (UHPC). However, its production process always create environmental risks, such as dust pollution, noise pollution, and soil pollution. Therefore, to overcome the problems mentioned above, this study try to decrease the quartz sand content in UHPC by utilizing recycled rock dust with differen ...
DOI:
10.1016/j.jclepro.2020.120673

11. Symbiont-bearing foraminifera as health proxy in coral reefs in the equatorial margin of Brazil

Author:
Eichler, Patrícia P. B.; de Moura, Diogo S.
Source:
Environmental science and pollution research international 2020 v.27 no.12 pp. 13637-13661
ISSN:
0944-1344
Subject:
sand fraction,   etc   ; Retaria; anthropogenic activities; biodiversity; carbonates; coral reefs; corals; hydrodynamics; indicator species; marine parks; monitoring; pollutants; sediments; Brazil;     Show all 14 Subjects
Abstract:
... Coral communities worldwide are progressively more stressed by anthropogenic activities that increase fluxes of sediment and other pollutants to nearshore areas. Some nearshore coral reef environments off the Equatorial margin of Brazil, including Pirangi and Maracajaú, Rio Grande do Norte (RN, Brazil), seem to be under human-induced stress. However, the horizontal extent of this stress, its effec ...
DOI:
10.1007/s11356-019-07483-y

12. Mineral composition characteristics of radiocesium sorbed and transported sediments within the Tomioka river basin in Fukushima Prefecture

Author:
Hagiwara, Hiroki; Konishi, Hiromi; Nakanishi, Takahiro; Fujiwara, Kenso; Iijima, Kazuki; Kitamura, Akihiro
Source:
Journal of environmental radioactivity 2020 v.211 pp. 106042
ISSN:
0265-931X
Subject:
sand fraction,   etc   ; bedload; cesium; estuaries; mineral content; minerals; prediction; radioactivity; radionuclides; river water; rivers; sand; watersheds; Japan;     Show all 14 Subjects
Abstract:
... The deposited radiocesium in the Fukushima river basin is transported in the river systems by soil particles and redistributed in the downstream areas. Although predicting the behaviors of minerals that adsorb radiocesium and of radiocesium dissolved in river water within the river systems is essential, the dominant mineral species that adsorb radiocesium have not yet been comprehensively identifi ...
DOI:
10.1016/j.jenvrad.2019.106042

13. Transitional behavior in well-graded soils: An example of completely decomposed granite

Author:
Elkamhawy, Elsayed; Zhou, Bo; Wang, Huabin
Source:
Engineering geology 2019 v.253 pp. 240-250
ISSN:
0013-7952
Subject:
sand fraction,   etc   ; fabrics; granite; granite soils; isotropy; microstructure; soil mineralogy;     Show all 7 Subjects
Abstract:
... This study presents the results of a series of isotropic compression tests and drained and undrained triaxial shearing tests on naturally graded and reconstituted completely decomposed granite soils to investigate their compressive response and transitional behavior. Naturally graded soils exhibited unique isotropic compression and critical state lines within the stress levels studied. Soils recon ...
DOI:
10.1016/j.enggeo.2019.02.027

14. Anthrax in the Amhara regional state of Ethiopia; spatiotemporal analysis and environmental suitability modeling with an ensemble approach

Author:
Assefa, Ayalew; Bihon, Amare; Tibebu, Abebe
Source:
Preventive veterinary medicine 2020 v.184 pp. 105155
ISSN:
0167-5877
Subject:
sand fraction,   etc   ; Bacillus anthracis; algorithms; altitude; anthrax; artificial intelligence; atmospheric precipitation; cattle; computer software; georeferencing; models; planning; sheep; temperature; tropical diseases; Ethiopia;     Show all 16 Subjects
Abstract:
... Anthrax is one of the most neglected tropical disease affecting humans, livestock, and wildlife worldwide. The disease is caused by soil-borne spore-forming bacteria called Bacillus anthracis. A machine learning algorithm with the biomod2 package of R software was used to develop a predictive map for the Amhara regional state of Ethiopia. One hundred twenty-eight georeferenced confirmed outbreak r ...
DOI:
10.1016/j.prevetmed.2020.105155

15. Cultivation impacts on soil texture during oasis expansion in Xinjiang, Northwest China: Wind erosion effects

Author:
Song, Qin; Gao, Xin; Du, Heqiang; Lei, Jiaqiang; Li, Sen; Li, Shengyu
Source:
Aeolian research 2020 pp. 100646
ISSN:
1875-9637
Subject:
sand fraction,   etc   ; adverse effects; clay; clay fraction; cropland; dosage; history; monitoring; oases; particles; reclaimed land; remote sensing; research; sampling; silt fraction; soil surveys; soil texture; wind erosion; China;     Show all 19 Subjects
Abstract:
... To explore the cultivation effects on soil texture at local and regional scales during the expansion of oases, a field survey combined with remote sensing monitoring was conducted in the arid desert regions in Xinjiang, Northwest China. We evaluated possible changes by comparing cultivated and uncultivated lands in 2019 with paired reference lands from the Second National Soil Survey of China. The ...
DOI:
10.1016/j.aeolia.2020.100646

16. Evaluating fractal dimension of the soil particle size distributions and soil water retention curve obtained from soil texture components

Author:
Mohammad Mahdi, Chari; Dahmardeh Ghaleno, Mohammad Reza
Source:
Archiv für Acker- und Pflanzenbau und Bodenkunde 2020 v.66 no.12 pp. 1668-1678
ISSN:
1476-3567
Subject:
sand fraction,   etc   ; clay; clay fraction; databases; fine-textured soils; fractal dimensions; particle size distribution; porosity; silt fraction; soil texture; soil water characteristic; Iran;     Show all 12 Subjects
Abstract:
... It is much easier to measure solid phase data or particle size distribution (PSD) than pore size distribution, therefore it is useful to determine relationship between fractal dimension of the soil particle size distributions (D PSD) and soil water retention curve (). The present research aims to firstly measure fractal dimension of the soil PSD using three radii 1 (clay), 25 (silt) and 1000 (sand ...
DOI:
10.1080/03650340.2019.1686140

17. Microbial carbon use efficiency in grassland soils subjected to nitrogen and phosphorus additions

Author:
Widdig, Meike; Schleuss, Per-M.; Biederman, Lori A.; Borer, Elizabeth T.; Crawley, Michael J.; Kirkman, Kevin P.; Seabloom, Eric W.; Wragg, Peter D.; Spohn, Marie
Source:
Soil biology & biochemistry 2020 v.146 pp. 107815
ISSN:
0038-0717
Subject:
sand fraction,   etc   ; atmospheric precipitation; carbon sequestration; grassland soils; microbial biomass; microbial carbon; microorganisms; nitrogen; phosphorus; temperature; terrestrial ecosystems; topsoil; South Africa; United Kingdom; United States;     Show all 15 Subjects
Abstract:
... Soil microbial carbon use efficiency (CUE), defined as the ratio between carbon (C) allocated to growth and C taken up by microorganisms, is pivotal for the understanding of C cycling in terrestrial ecosystems. Soil microbial CUE is thought to increase under nitrogen (N) addition, thereby mediating the effects of atmospheric N deposition on C cycling in soils. We studied the effects of N, phosphor ...
DOI:
10.1016/j.soilbio.2020.107815

18. Soil texture classification using multi class support vector machine

Author:
Barman, Utpal; Choudhury, Ridip Dev
Source:
Information processing in agriculture 2020 v.7 no.2 pp. 318-332
ISSN:
2214-3173
Subject:
sand fraction,   etc   ; agricultural soils; cameras; clay; color; farmers; hydrometers; image analysis; sand; silt; soil classification; soil sampling; soil texture; support vector machines; texture; wavelet; India;     Show all 17 Subjects
Abstract:
... The objective of this study is to process the soil images to generate a digital soil classification system for rural farmers at low cost. Soil texture is the main factor to be considered before doing cultivation. It affects the crop selection and regulates the water transmission property. The conventional hydrometer method determines the percentage of sand, silt, and clay present in a soil sample. ...
DOI:
10.1016/j.inpa.2019.08.001

19. Essential Oil Chemical Variability in Oliveria decumbens (Apiaceae) from Different Regions of Iran and Its Relationship with Environmental Factors

Author:
Karami, Akbar; Khoshbakht, Tahereh; Esmaeili, Hassan; Maggi, Filippo
Source:
Plants 2020 v.9 no.6
ISSN:
2223-7747
Subject:
sand fraction,   etc   ; Apiaceae; altitude; carvacrol; chemotypes; domestication; essential oils; gamma-terpinene; gas chromatography-mass spectrometry; habitats; p-cymene; planning; principal component analysis; temperature; thymol; volatile compounds; Iran;     Show all 17 Subjects
Abstract:
... Oliveria decumbens Vent. (Apiaceae) is an annual herb resistant to harsh environmental conditions, which has got numerous pharmacological, food and feed, and cosmetic applications. In the present study, the variation in the essential oil (EO) content and composition of twelve O. decumbens populations growing wild in several habitats of Iran was studied. The EO contents varied from 2.71% (Darab) to ...
DOI:
10.3390/plants9060680

20. Conversion of soil particle size distribution and texture classification from ISSS system to FAO/USDA system in Japanese paddy soils

Author:
TAKAHASHI, Tomoki; NAKANO, Keiko; NIRA, Rikiya; KUMAGAI, Etsushi; NISHIDA, Mizuhiko; NAMIKAWA, Mari
Source:
Soil science and plant nutrition 2020 v.66 no.3 pp. 407-414
ISSN:
1747-0765
Subject:
sand fraction,   etc   ; USDA; accuracy; classification; equations; estimation; fractionation; paddies; paddy soils; particle size; particle size distribution; plant nutrition; regression analysis; sand; silt; soil texture; texture; topsoil;     Show all 18 Subjects
Abstract:
... The conversion between the two different systems, ISSS and FAO/USDA, of particle size distribution and soil texture classification is useful to characterize soil physical properties and usage of each published. The objective of this study is to test some functions that have been published for conversion from ISSS to FAO/USDA system for Japanese paddy soils and to select the best method. We tested ...
DOI:
10.1080/00380768.2020.1763143