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1

Hamad, Asal Mahmud, and Mahmood Gazey Jassam. "A Comparative Study for the Effect of Some Petroleum Products on the Engineering Properties of Gypseous Soils." Tikrit Journal of Engineering Sciences 29, no. 3 (2022): 69. http://dx.doi.org/10.25130/tjes.29.3.7.

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Анотація:
Gypseous soils are considered problematic soils because the soil cavities happen during receiving the water or this type of soil and solving gypsum materials and contract in a soil volume. In this study, three types of gypseous soils are used; soil1, soil2, and soil3 with gypsum content (28.71%, 43.6%, and 54.88%) respectively, petroleum products (engine oil, fuel oil, and kerosene) are added to the soils with percentages (3%, 6%, 9%, and 12%) for each product. The result showed that specific gravity, liquid limit, optimum moisture content (O.M.C), and maximum dry density decreased with an inc
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2

Mohamed, Ahmed, Saad Saadi, Ibrahim Gart, and Fahmy Mohammed. "Assessing the Improvement of Geotechnical Properties of Clayey Soil Using a Substrate Cement Mortar Material, from Ilgin, Konya City, Turkey." Iraqi Geological Journal 57, no. 2A (2024): 162–76. http://dx.doi.org/10.46717/igj.57.2a.12ms-2024-7-22.

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Анотація:
The increase in needs and the decrease in places with good, usable foundation soil have made the construction of engineering structures on problematic soils mandatory. Problematic soils generally do not have sufficient bearing capacity and soil strength, which may create an environment prone to high settlement or liquefaction. To investigate potential ways to enhance the compaction, undesirable or problematic plasticity, and soil’s strength characteristics, various geotechnical tests have been carried out on clayey soils and their mixtures treated with a Substrate Cement Mortar (0, 4, 8, and 1
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3

Pahlevi Munirwan, Reza, and Munirwansyah Munirwansyah. "Assessing slope failure of soil erodibility problem by soil dispersive identification." E3S Web of Conferences 340 (2022): 01006. http://dx.doi.org/10.1051/e3sconf/202234001006.

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Dispersive soils are becoming a common building material. Due to their susceptibility to internal erosion and leakage, dispersive soils should only be used in combination with precise engineering measures to avoid catastrophic failures. Dispersive soils stabilization is critical and has been investigated in several studies conducted throughout the world. Erosion is a significant issue in structures built on sloping contours. As was the case with St. 670+250 Lipat Kajang road in Aceh Singkil. Soil erosion happens as a result of water’s dispersion and transport force. Dispersive soil is one of t
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4

Cui, Jifei, Yanhao Jin, Yingjie Jing, and Yu Lu. "Elastoplastic Solution of Cylindrical Cavity Expansion in Unsaturated Offshore Island Soil Considering Anisotropy." Journal of Marine Science and Engineering 12, no. 2 (2024): 308. http://dx.doi.org/10.3390/jmse12020308.

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An elastoplastic analysis scheme for the cylindrical cavity expansion in offshore islands unsaturated soils considering anisotropy is established. The hydraulic properties and anisotropy caused by stress of unsaturated soils are coupled in an elastoplastic constitutive matrix for unsaturated soil to obtain the governing equations for the cylindrical cavity expansion problem, with an analytical solution that utilizes the original hydro-mechanical state of the soil as the initial conditions. Through a comparative analysis with other analytical solutions, the effectiveness of the new solution is
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5

Ngole-Jeme, Veronica M. "Fire-Induced Changes in Soil and Implications on Soil Sorption Capacity and Remediation Methods." Applied Sciences 9, no. 17 (2019): 3447. http://dx.doi.org/10.3390/app9173447.

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Анотація:
Vegetation changes caused by fire events are visible instantly but changes in soils are less apparent, and could be short-term, long-term or permanent in nature. Research has shown that soils undergo changes in their mineralogical, geochemical, physico-chemical and biological properties after a fire event that may vary depending on the intensity and duration of the fire, and the properties of the soil. Some of these properties make significant contributions towards soil’s ability to sorb contaminants. Changes in these properties could affect soil sorption complex and the effectiveness of remed
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6

Sturman, V. I., and A. N. Loginovskaya. "BACKGROUND CONCENTRATION OF HEAVY METALS (LEAD, CADMIUM, ZINC, COPPER, NICKEL, ARSENIC, MERCURY) IN SURFACE SOILS OF UDMURTIA CONTROLLED AT ENGINEERING-ECOLOGICAL RESEARCHES." Bulletin of Udmurt University. Series Biology. Earth Sciences 30, no. 3 (2020): 285–94. http://dx.doi.org/10.35634/2412-9518-2020-30-3-285-294.

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Анотація:
Materials of engineering-ecological researches on various economic objects in Udmurtia are processed and systematized. Average (background) concentration of the heavy metals which are subject to obligatory control at engineering-ecological researches (lead, cadmium, zinc, copper, nickel, arsenic, mercury) for the main associations of soils and most wide-distributed kinds of soils are defined. It is revealed that with decreasing the soil’s podzol content and increasing the soil’s clay content, concentrations of heavy metals naturally raise. In general, similar soils are characterized by similar
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7

Islam, ABMS, ZH Khan, and AR Mazumder. "Pedogenesis And Characterization Of Some Soils From The Chalan Beel Of Bangladesh." Journal of the Asiatic Society of Bangladesh, Science 40, no. 2 (2014): 271–81. http://dx.doi.org/10.3329/jasbs.v40i2.46025.

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Анотація:
Twenty two soil samples from four pedons representing some established soil series namely Jaonia, Haiti, Taras and Digli from the Chalan beel area of Bangladesh were studied in the field as well as in the laboratory for their pedogenesis and characterization. All the soils are heavy textured with clay contents ranging from 47 to 60 percent. The soils are moderately acidic to neutral in reaction with high base saturation. The soils have developed redoximorphic features including redox concentration and redox depletion due to periodic flooding more than 4 months in the monsoon season. Developmen
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8

Najafi-Ghiri, M., and A. Abtahi. "Potassium fixation in soil size fractions of arid soils." Soil and Water Research 8, No. 2 (2013): 49–55. http://dx.doi.org/10.17221/52/2012-swr.

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Amounts of potassium (K) fixed in soil fractions of 10 calcareous soils of southern Iran were measured to evaluate the contributions of different soil size fractions to K fixation. Soil particles were fractionated after dispersion of the soils with an ultrasonic probe. Potassium fixation analysis was done by addition of 1000 mg K/kg samples. Mineralogy of the size fractions was determined by X-ray diffraction. The clay fractions were dominated by smectite, chlorite, mica, and palygorskite. Potassium fixation capacities ranged from 104 to 148 mg/kg for clay, from 102 to 155 mg/kg for s
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9

Meier, E. A., P. J. Thorburn, and M. E. Probert. "Occurrence and simulation of nitrification in two contrasting sugarcane soils from the Australian wet tropics." Soil Research 44, no. 1 (2006): 1. http://dx.doi.org/10.1071/sr05004.

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The concentration of ammonium-nitrogen (NH4+-N) frequently exceeds that of nitrate-N (NO3−-N) in Australian wet tropical sugarcane soils. The amount of mineral N in soil is the net result of complex processes in the field, so the objective of this experiment was to investigate nitrification and ammonification in these soils under laboratory conditions. Aerobic and saturated incubations were performed for 1 week on 2 wet tropical soils. Net NO3−-N increased significantly in both soils during both types of incubation. A second series of aerobic incubations of these soils treated with NH4+-N and
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10

Lai, Yongbiao, Songsong Bai, Jian Hou, et al. "A Synthetic Chart for Internal Stability Assessment of Soils Based on Soil PSD Curves." Processes 10, no. 5 (2022): 807. http://dx.doi.org/10.3390/pr10050807.

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Awareness of granulated soils’ internal instability is an important parameter when designing granulated filters, and the ability of a granulated soil’s internal stability can be verified using the soil PSD (Particle Size Distribution) curves’ secant slopes. The current work presents a new method to calculate the soil PSD curves’ secant slopes automatically, and a synthetic diagram is presented for the potential examination of the granulated soils’ internal stability. To verify the feasibility and accuracy of this synthetic diagram, 80 specimens of soil were investigated in this work and catego
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11

Yu, Yiting, Huimin Peng, and Jiangu Qian. "Numerical modeling bearing capacity in wetting unsaturated expansive soils." IOP Conference Series: Earth and Environmental Science 1330, no. 1 (2024): 012055. http://dx.doi.org/10.1088/1755-1315/1330/1/012055.

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Abstract To address the load-bearing deterioration of expansive soils uplift pile foundation after moisture absorption, a coupled seepage-soil deformation model for unsaturated expansive soils is implemented into ABAQUS. This modeling work consists primarily of two aspects: (1) The total strain of expansive soils has been decoupled into two parts, i.e., one caused by external loads and calculated by using Mohr-Coulomb plasticity model, and the other induced by wetting swelling and modeled by defining the moisture-swelling relation curve of expansive soils; (2) User-defined field subroutine (US
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12

Li, Wentao, Runxiang Li, Yin Chen, and Henglin Xiao. "Comparison of Two Sulfate-Bearing Soils Stabilized with Reactive Magnesia-Activated Ground Granulated Blast Furnace Slag: Swelling, Strength, and Mechanism." Buildings 13, no. 1 (2023): 230. http://dx.doi.org/10.3390/buildings13010230.

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Анотація:
Sulfate-bearing soils, which causes many engineering problems, e.g., cracking, collapse, and pavement layer settlement, are often encountered in the construction of pavements. Ground granulated blast furnace slag (GGBS)-magnesia (MgO) has been regarded as an effective curing agent in the treatment of sulfate-bearing soil containing gypsum. However, field sulfate-bearing soils usually include other forms of sulfates, such as sodium sulfate (Na2SO4) and magnesium sulfate (MgSO4). Currently, few studies have investigated the effect of the type of sulfate on the properties of sulfate-bearing soil
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13

Lim, B. F., and G. A. Siemens. "Unifying framework for modeling swelling soil behaviour." Canadian Geotechnical Journal 53, no. 9 (2016): 1495–509. http://dx.doi.org/10.1139/cgj-2015-0049.

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Анотація:
The destructive effect of expansive soils on infrastructure is one of the classical issues associated with unsaturated soils. Given the continuing challenges associated with swelling soils there is still a need for a practical analysis method. The swelling equilibrium limit (SEL) provides a concept for modeling expansive soil behaviour. The SEL is an upper bound swelling limit, which depends on the soil’s initial state and the boundary conditions upon wetting. The SEL is obtained experimentally from swelling tests performed by applying a range of swelling scenarios from rigid boundary conditio
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14

Sridhar, Praveena. "Australia’s soils have sent us a warning: We should listen." Open Access Government 44, no. 1 (2024): 448–49. http://dx.doi.org/10.56367/oag-044-118-edit.

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Australia’s soils have sent us a warning: We should listen Praveena Sridhar, the CTO of the Save Soil Movement, believes that Australia’s soil has been signalling a message to us, and as a result, we ought to pay attention. ‘Keeping carbon in the ground’ has become the rallying cry of environmentalists across the globe. Yet this doesn’t just apply to fossil fuels but to our soils, too. Currently, our soil contains more stored carbon than the atmosphere and plant matter combined. This makes our soils the world’s second-largest carbon sink, behind our oceans. However, soil’s status as a carbon s
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15

Kumar, Ashok. "Use of Leptochloa fusca for the Improvement of Salt-Affected Soils." Experimental Agriculture 32, no. 2 (1996): 143–49. http://dx.doi.org/10.1017/s0014479700026053.

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SUMMARYThe grass Leptocloa fusca is very useful on salt-affected soils as it can tolerate extremely saline and alkaline conditions, Since its growth is not affected by gypsum application, planting with Leptochloa is a good biological method for the reclamation of alkaline soils. It is also well adapted to the waterlogging encountered on saline and alkaline soils, and improves the soil's physical, chemical and biological properties so that within two or three years many commercial and forage crops can be grown. Leptochloa excretes salts through specialized glands and is therefore reasonably pal
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16

Guo, Qiushi. "Methods and Characteristics of Soil Microbial Detection in Plantation Forests in North China." BIO Web of Conferences 142 (2024): 02006. https://doi.org/10.1051/bioconf/202414202006.

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Exploring the changes in microbial characteristics of soils in North China's plantation forests and the soil indicator measurement methods commonly used today can provide a certain degree of understanding of the current status of soils in North China's plantation forests. This study collected information on forest soil microbial laboratory testing methods and conducted mathematical statistics to get the current technical hotspots and development trends of microbial testing of forestry soils. Also organized overview of soil physicochemical properties and microbiological indicators of plantation
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17

Mokwenye, Ifesinachi I., Paul N. Diagboya, Bamidele I. Oluowolabi, Ikenna O. Anigbogu, and Hilary I. Owamah. "Immobilization of toxic metal cations on goethite-amended soils: a remediation strategy." Journal of Applied Sciences and Environmental Management 20, no. 2 (2016): 436–43. http://dx.doi.org/10.4314/jasem.v20i2.26.

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The study investigates a simple and viable option to reduce toxic metals mobility and availability in four surface (0–30cm) soils with varying physicochemical properties amended by different percentages of goethite. Batch sorption experiments carried out to study the effectiveness of immobilizing Pb2+, Cu2+, Zn2+ and Cd2+ ions on these soils showed that goethite played vital role in the metals adsorption (≥10% increase in adsorption). Removal of soil iron oxides caused reduced Pb2+ adsorption on soils with high organic matter (≤ 10% decrease in adsorption) with no significant increase in adsor
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18

Sierra, C. A., M. Müller, and S. E. Trumbore. "Modeling radiocarbon dynamics in soils: SoilR version 1.1." Geoscientific Model Development 7, no. 5 (2014): 1919–31. http://dx.doi.org/10.5194/gmd-7-1919-2014.

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Abstract. Radiocarbon is an important tracer of the global carbon cycle that helps to understand carbon dynamics in soils. It is useful to estimate rates of organic matter cycling as well as the mean residence or transit time of carbon in soils. We included a set of functions to model the fate of radiocarbon in soil organic matter within the SoilR package for the R environment for computing. Here we present the main system equations and functions to calculate the transfer and release of radiocarbon from different soil organic matter pools. Similarly, we present functions to calculate the mean
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19

Sierra, C. A., M. Müller, and S. E. Trumbore. "Modeling radiocarbon dynamics in soils: SoilR version 1.1." Geoscientific Model Development Discussions 7, no. 3 (2014): 3161–92. http://dx.doi.org/10.5194/gmdd-7-3161-2014.

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Abstract. Radiocarbon is an important tracer of the global carbon cycle that helps to understand carbon dynamics in soils. It is useful to estimate rates of organic matter cycling as well as the mean residence or transit time of carbon in soils. We included a set of functions to model the fate of radiocarbon in soil organic matter within the SoilR package for the R environment for computing. Here we present the main system equations and functions to calculate the transfer and release of radiocarbon from different soil organic matter pools. Similarly, we present functions to calculate the mean
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20

Brodský, L., A. Klement, V. Penížek, R. Kodešová, and L. Borůvka. "Building soil spectral library of the Czech soils for quantitative digital soil mapping." Soil and Water Research 6, No. 4 (2011): 165–72. http://dx.doi.org/10.17221/24/2011-swr.

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  Spectral libraries are the data archives of spectral signatures measured on natural and/or man-made materials. Here, the objective is to build a soil spectral library of the Czech soils (SSL-CZ). Further on, the overall aim is to apply diffuse reflectance spectroscopy as a tool for digital soil mapping. An inevitable part of the library is a metadata database that stores the corresponding auxiliary information on the soils: type of material (soil, parent material), sample preparation, location of the sample with geographic coordinates, soil classification, morphological features, so
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21

Gerasimova, М. I., and N. B. Khitrov. "Morphological soil description for classifying soils and interpteting their genesis." Dokuchaev Soil Bulletin 86 (December 15, 2016): 8–16. http://dx.doi.org/10.19047/0136-1694-2016-86-8-16.

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22

Novák, Tibor. "Afforestation affects vertical distribution of basic soil characteristics and taxonomic status of sodic soils." Plant, Soil and Environment 68, No. 5 (2022): 245–52. http://dx.doi.org/10.17221/53/2022-pse.

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Afforestation, settled before 60–90 years and adjacent solonetzic grasslands, representing the natural vegetation cover were compared in this study based on their basic soil characteristics (pH, CaCO3 content, soil organic carbon (SOC), and exchangeable sodium percentage (ESP)) up to 2 m depth. The assumption was that the plantings of arbour vegetation can change soil characteristics of sodic soils not only in superficial layers but even in larger depths. Grasslands and forest soils were compared by standardised depths. Afforested soils showed lower pH in the depth at 0–100 cm, and slightly hi
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23

Margenot, Andrew. "Soils." African Journal of Food, Agriculture, Nutrition and Development 19, no. 05 (2020): 15109–15. http://dx.doi.org/10.18697/ajfand.88.silfarmdoc01.

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24

Kimble, John. "Soils." Soil Science 173, no. 1 (2008): 81–82. http://dx.doi.org/10.1097/ss.0b013e318159a5f8.

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25

Keeney, Dennis. "Soils." Soil Science 167, no. 7 (2002): 492–93. http://dx.doi.org/10.1097/00010694-200207000-00008.

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26

FUJII, Kazumichi. "Soils." Vacuum and Surface Science 63, no. 4 (2020): 159–64. http://dx.doi.org/10.1380/vss.63.159.

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27

Mahdy, A. M. "Comparative effects of different soil amendments on amelioration of saline-sodic soils." Soil and Water Research 6, No. 4 (2011): 205–16. http://dx.doi.org/10.17221/11/2011-swr.

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Анотація:
  A greenhouse experiment was conducted to test the potential of different soil amendments in saline-sodic soils reclamation; to affect the growth response of alfalfa (Medicago sativa L.) plants grown on two saline-sodic soils; and to evaluate the comparative efficiency of different soil amendments for their effects on salinity, sodicity, and pH levels of the soils. To achieve these objectives, two highly saline-sodic soils were selected (Abees, Typic torrifluvents and Elhammam, Typic calciorthids). Different soil amendments were used (compost, anthracite coal powder, water t
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28

Sundary, Devi, Munirwansyah, Azmeri, and Halida Yunita. "Physical properties and compression index of embankment soil as construction material." Journal of Physics: Conference Series 2916, no. 1 (2024): 012027. https://doi.org/10.1088/1742-6596/2916/1/012027.

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Abstract Soil’s physical properties are characterized by its shape, size, color, and odor. The compression index, a key parameter of soil compressibility, is used to determine the extent of consolidation settlement. This study serves as preliminary research into alternative embankment materials for construction. The embankment soil samples were collected from ten locations in Aceh Besar district. The research aims to assess the quality of embankment soils and predict potential land subsidence, contributing to sustainable development in Aceh Province. This is particularly important because the
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29

Ghadiri, H., D. Connell, and R. Parker. "Sorption-desorption and column leaching of strychnine with soil." Soil Research 38, no. 3 (2000): 603. http://dx.doi.org/10.1071/sr99056.

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Sorption–desorption of rodenticide strychnine by soil and its leaching through soil columns were studied on 4 typical soils of south-east Queensland. All 4 soils showed a high tendency to sorb strychnine, with the sorption rate higher for clay soils. The sorption capacities of the 4 soils are in the order Kingsthorpe > Warra > Oakey > Roma, which is also the order of decline in their clay contents. The desorption process also closely followed the clay content of the 4 soils. The 2 clay soils of Kingsthorpe and Warra not only sorbed a higher proportion of the applied strychnine at any
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30

Rakhimgaliyeva, Saule, Sonja Tošić, Frank Eulenstein, Uwe Schindler, and Elmira Saljnikov. "How withdrawing arable land affected the productive capacity of Haplic Kastanozems after 19 years of fallowing in dry steppes of the Ural piedmont." Zemljiste i biljka 70, no. 2 (2021): 10–32. http://dx.doi.org/10.5937/zembilj2102010r.

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The fertile arable lands in the dry steppe zone of the Ural piedmont, which were intensively used for cereal production for 30 years of the last century, have been withdrawn from cultivation and abandoned for the last 20 years. The Republic of Kazakhstan's new strategy to restore the productivity of natural pasture presents a challenge to scientists when it comes to restoring the natural soil properties to the natural pastoral conditions of the dark chestnut soils studied (Haplic Kastanozems). This chapter presents the results of a project devoted to investigating the changes in the soil's phy
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31

Kocaman, Kadir, Askin Ozocak, Tuncer B. Edil, et al. "Evaluation of Soil-Water Characteristic Curve and Pore-Size Distribution of Fine-Grained Soils." Water 14, no. 21 (2022): 3445. http://dx.doi.org/10.3390/w14213445.

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A soil’s physical properties, mineral types, and pore structure significantly influence the shape and properties of the soil-water characteristic curve (SWCC). This study investigated the effects of the soil’s physical properties and mineral types on the SWCC and pore-size distribution (PSD). Eight different soils from an alluvial deposit in Istanbul and Adapazarı/Türkiye were used in the study. The test samples were prepared by compaction at optimum water content (OWC) and wet side of optimum water content (wet of OWC). The samples were prepared by consolidation from the slurry. The PSDs of t
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32

Chakravarthy, Thokala, and K. Shyam Chamberlin. "Fly ash and bagasse ash embankment in flexible pavements for the analysis and strengthening of black cotton soil’s strength stabilized properties." E3S Web of Conferences 391 (2023): 01005. http://dx.doi.org/10.1051/e3sconf/202339101005.

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Анотація:
Soil stabilization is necessary to increase the soil’s durability, volume stability, and engineering expansion strength. Expansive soils (also known as black cotton soil), a problem that affects the entire world and poses various challenges for civil engineers, are extremely hard while dry but completely lose their strength when wet. In this study, fly ash has been employed to stabilize the soil. Five, ten, twenty, and twenty-five percent of fly ash was used in the experiments. Bagasse ash is an easily accessible byproduct of the sugar cane refining process that has negative environmental effe
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33

Sobti, Dr Jaskiran, and Daljeet Sidhu. "Enhancing California Bearing Ratio through Optimized Compaction Efforts: A Study on Alluvial Soils in North India." Journal of Civil Engineering Frontiers 5, no. 01 (2024): 1–6. http://dx.doi.org/10.38094/jocef50173.

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The quantity of soil required for embankment construction is enormous. Often the soil is brought to the site in dumpers in multiple rounds. This to and from movement of the wagons leads to the deterioration of the existing flexible pavement. In the absence of good earth nearby, using existing soils to act as a subgrade material upon meeting the desired strength and stability characteristics is the need of the hour. The California Bearing Ratio (CBR) is an indicator of soil's strength, which further depends on the degree of compaction of soil. In this study, an effort has been made to find the
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34

Williams, Stephen E. "A Review and Analysis of Rangeland and Wildland Soil Health." Sustainability 16, no. 7 (2024): 2867. http://dx.doi.org/10.3390/su16072867.

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Анотація:
Soil health is focused on intensively managed (IM) soils (often farmed soils), by-passing extensively managed (EM) soils (range lands, deserts, shrub lands, tundra). High economic value products are generated by IM systems. Many EM lands are of cultural, recreational, scenic, or scientific value. However, and despite the fact that they provide forage for domestic and wild animals, they are not always of high economic value. IM and EM soils are evaluated on the same health scales. The contention herein is all soils formed under soil state conditions under the absence of human interventions are
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35

Mori Alvez, Cristina, Carlos Perdomo Varela, Pablo González Barrios, Andrea Bentos Guimaraes, and Amabelia del Pino Machado. "Lupine Cultivation Affects Soil’s P Availability and Nutrient Uptake in Four Contrasting Soils." Agronomy 14, no. 2 (2024): 389. http://dx.doi.org/10.3390/agronomy14020389.

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A substantial amount of phosphorus (P) in the soil is not readily available for plant uptake. Certain species may enhance P availability from poorly soluble P forms. This study focused on improving our comprehension of the effect of two lupine species (L. albus and L. angustifolius) on soil’s P mobilization and its link with soil acidity variations, comparing the response of the lupine species in terms of plant traits (i.e., aboveground biomass and nutrient uptake) with that of oats (Avena strigosa L.) in four contrasting soils (i.e., available P in soil, soil acidity, soil fertility, and text
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36

Xiao, Jian, Junxian Liu, Siyu Wu, Wenhui Liang, and Shangdong Yang. "The Characteristics of the Root-Zone Soil’s Biological Properties and Microbial Community Structure in Grafted Star Anise Plantations." Microorganisms 12, no. 3 (2024): 431. http://dx.doi.org/10.3390/microorganisms12030431.

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Анотація:
Extensive management seriously affects the output, quality, and sustainable development of star anise, and grafting is commonly used to improve its production and quality. Although many studies have explored the effects of grafting on soil microorganisms for other plants, there is a lack of research on aromatic plants, especially on the soil ecosystems of star anise plantations. The effect of grafting star anise on the soil’s biological characteristics and microbial composition remains unclear. The soil’s enzyme activities, soil microbial biomass, and microbial community composition in grafted
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37

Anderson, Donald J., Kevin W. Franke, Robert E. Kayen, Shideh Dashti, and Mahir Badanagki. "The Over-Prediction of Seismically Induced Soil Liquefaction during the 2016 Kumamoto, Japan Earthquake Sequence." Geosciences 13, no. 1 (2022): 7. http://dx.doi.org/10.3390/geosciences13010007.

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Анотація:
Following the M7.0 strike-slip earthquake near Kumamoto, Japan, in April of 2016, most geotechnical engineering experts believed that there would be significant soil liquefaction and liquefaction-induced infrastructure damage observed in the densely populated city of Kumamoto during the post-event engineering reconnaissance. This belief was driven by several factors including the young geologic environment, alluvially deposited soils, a predominance of loose sandy soils documented in publicly available boring logs throughout the region, and the high intensity ground motions observed from the e
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38

Ahmed, Ahmed, Jiby Kurian, and Vijaya Raghavan. "Biochar influences on agricultural soils, crop production, and the environment: A review." Environmental Reviews 24, no. 4 (2016): 495–502. http://dx.doi.org/10.1139/er-2016-0008.

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Анотація:
Given its high pore volume and adsorption capacity, and when applied as an agricultural soil amendment, its ability to enhance the soil’s nutrient- and water- holding capacities, biochar has become a focus of research interest. In most applications, crop productivity is significantly increased after agricultural soils are amended with biochar. In addition to increasing soil quality, the biochar amendments sequester carbon within the soil. However, the long-term effects of amending agricultural soils with biochar are difficult to predict, because the mechanisms behind the increase in productivi
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39

Buzyakova, Inna, Andrey Revin, and Evgeni Lyadov. "Assessment of environmental conditions in the Southwestern Region of Moscow." E3S Web of Conferences 613 (2025): 01004. https://doi.org/10.1051/e3sconf/202561301004.

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Анотація:
Air pollution is a leading factor affecting the health of the population residing in the capital. The primary source of air pollution in the city is automobile transport, accounting for over 90% of emissions. The number of vehicles on the roads increases annually, resulting in traffic congestion and elevated levels of exhaust fumes and pollution in residential areas and neighborhoods. Industrial enterprises also contribute significantly to pollution. Surface and groundwater in Moscow experience considerable stress, primarily due to intensive and irrational use of water resources, as well as th
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40

Terrones-Saeta, Juan María, Daniel Camazón Portela, Ana Teresa Luís, Jorge Suárez-Macías, and José Antonio Grande. "Ceramics for Building Structures Made from Contaminated Soils: A Fuzzy Logic Intelligence Approach to Circular Mining." Processes 11, no. 5 (2023): 1512. http://dx.doi.org/10.3390/pr11051512.

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Анотація:
Soils contaminated by mining activities are a major environmental concern, and to avoid this type of environmental impact, carrying out high-cost processes is necessary. For this reason, a solution is proposed in this study in order to eliminate the soils contaminated by mining activities and, in turn, prevent the soil’s contaminating elements from causing harm. All this is achieved by using contaminated soils as raw materials for the production of ceramics for bricks. For this purpose, the materials were initially characterized physically and chemically, and different ceramic test pieces were
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41

Yasseen, Bassam T., and Roda F. Al-Thani. "Endophytes and Halophytes to Remediate Industrial Wastewater and Saline Soils: Perspectives from Qatar." Plants 11, no. 11 (2022): 1497. http://dx.doi.org/10.3390/plants11111497.

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Анотація:
Many halophytes are considered to be salt hyperaccumulators, adopting ion extrusion and inclusion mechanisms. Such plants, with high aboveground biomass, may play crucial roles in saline habitats, including soil desalination and phytoremediation of polluted soils and waters. These plants cause significant changes in some of the soil’s physical and chemical properties; and have proven efficient in removing heavy metals and metabolizing organic compounds from oil and gas activities. Halophytes in Qatar, such as Halopeplis perfoliata, Salicornia europaea, Salsola soda, and Tetraena qatarensis, ar
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42

Yao, Jia, Xueren Wang, Mei Hong, Hui Gao, and Shixiang Zhao. "Response of soil pH to biochar application in farmland across China: a meta-analysis." PeerJ 13 (April 28, 2025): e19400. https://doi.org/10.7717/peerj.19400.

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Background Biochar, an alkaline material derived from agricultural and forestry waste, can ameliorate soil quality by adjusting soil pH. However, various types of biochar have distinct effects on soil pH due to diversity in feedstock type, pyrolysis temperature, and application rate. Method Therefore, a meta-analysis was conducted with 598 paired comparisons obtained from 104 published studies (January 2010–July 2022) to comprehensively depict the response of soil pH to biochar in farmland systems across China. Result The results showed that adding biochar significantly increased the acid soil
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43

Tobiašová, E., G. Barančíková, E. Gömöryová, B. Dębska, and M. Banach-Szott. "Humus substances and soil aggregates in the soils with different texture." Soil and Water Research 13, No. 1 (2018): 44–50. http://dx.doi.org/10.17221/31/2017-swr.

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Humus substances (HS) influence the incorporation of carbon into soil aggregates in many ways. In this study the influence of HS and their fractions in the soil on the proportions of carbon (total organic, labile, non-labile) in water-resistant macro-aggregates (WSA) and differences between the amount of carbon in WSA in coarse-grained (CGS) and fine-grained (FGS) soils with dependence on the proportions of HS in the soil were determined. The experiment included three soils (Haplic Chernozem, Haplic Luvisol, Eutric Cambisol), each of them with two different soil textures (CGS, FGS) from four e
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44

Vopravil, J., M. Janeček, and M. Tippl. "Revised soil erodibility K-factor for soils in the Czech Republic." Soil and Water Research 2, No. 1 (2008): 1–9. http://dx.doi.org/10.17221/2100-swr.

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Анотація:
In the territory of the Czech Republic there are more than 50% of agricultural soils exposed to water erosion; it is a very urgent problem both at present and for the future. It must be solved now when there is still something to be protected. It is rather complicated to describe the soil properties in terms of soil susceptibility to water erosion because it is a complex relation in which many factors participate. For the complex evaluation of all main factors participating in erosion origination it is possible to apply the Universal Soil Loss Equation (USLE). It consists of six factors intera
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45

Li, Z., and F. M. Kelliher. "Determining nitrous oxide emissions from subsurface measurements in grazed pasture: A field trial of alternative technology." Soil Research 43, no. 6 (2005): 677. http://dx.doi.org/10.1071/sr04106.

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Анотація:
Beneath pasture grazed by farmed animals, the soil’s nitrogen (N), oxygen, and temperature regimes can be unevenly distributed in time and space. It is difficult to capture spatial and temporal variation of N2O using conventional emission measurement technology based on gas samples taken in chambers that briefly cover a small area of the soil’s surface. We report the results from field deployment of alternative, non-intrusive N2O emission measurement technology that uses subsurface measurements incorporating the soil processes controlling the net N2O production and gas diffusion rates. During
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46

MOHAMAD MAIDIN, SITI NUR ANISA, JEPHTE SOMPUD, ISMAIL ABD RAHIM, MOHD SANI SARJADI, and BABA MUSTA. "Physico-Chemical Properties and Mineral Identification of Salt Licks Soil in Segaliud Lokan Forest Reserve." Borneo Journal of Resource Science and Technology 14, no. 2 (2024): 118–34. https://doi.org/10.33736/bjrst.6355.2024.

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Анотація:
This study intended to describe the physicochemical and mineralogical properties of salt licks discovered in Segaliud Lokan Forest Reserve. The salt licks in this forest reported to be visited and used by wildlifes via camera trap studies. In order to understand this wildlife’s behavior, the physicochemical and mineralogical properties of the salt lick especially the salt lick soil are important to determine the cause of the wildlife visitation. Five salt licks area as well as controlled soils were selected. Water and rock samples were also collected for the comparison study. The physical char
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47

Korzekwa, Kaine. "International Year of Soils Aims to Raise Soil’s Profile." Soil Horizons 56, no. 1 (2015): 0. http://dx.doi.org/10.2136/sh2015-56-1-f.

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48

Morse, Stephen, Nora McNamara, and Moses Acholo. "Soils, souls and agricultural sustainability: the need for connection." International Journal of Sustainable Development 7, no. 4 (2004): 410. http://dx.doi.org/10.1504/ijsd.2004.006417.

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49

van Mansvelt, Jan Diek, Paul C. Struik, Arie Bos, et al. "Changing Ground: Handling Tensions between Production Ethics and Environmental Ethics of Agricultural Soils." Sustainability 13, no. 23 (2021): 13291. http://dx.doi.org/10.3390/su132313291.

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Анотація:
Soils are an essential element in sustainable food systems and vital for ecosystem services. Soils are degrading, because of urbanization, poor soil management, depletion and mining, over-use of inputs and impacts of climate change. Poor soil management resulted from short-term yield maximization caused by changes in land tenure, property rights and land use. We argue for soil protection based on the concept of soil telos defined as the combined purposefulness in agricultural production and terrestrial ecosystem optimization. It includes the right of mankind to use soils, provided norms and va
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50

Huang, Jinrong, Heng Liang, Lilong Huang, et al. "Natural Revegetation Alters Habitat Conditions, Bacterial Components, and Polycyclic Aromatic Hydrocarbon (PAH)-Degrading Communities in Aged PAH-Polluted Soils." Microorganisms 13, no. 5 (2025): 1098. https://doi.org/10.3390/microorganisms13051098.

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The vegetation restoration of contaminated sites plays a critical role in ensuring the sustained stability and functional integrity of natural ecosystems. However, during the natural revegetation process, the variations in habitat conditions, bacterial community structure, and metabolic functions in aged, polluted soil are still unclear. In the present study, we investigated aged, polycyclic aromatic hydrocarbon (PAH)-polluted soils at closed, abandoned oil well sites from the Yellow River Delta. Using gene amplification and real-time qPCR methods, the abundance, taxonomy, and diversity charac
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