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Journal articles on the topic 'Soil structure deterioration'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Domínguez-Rodríguez, Verónica Isidra, Randy H. Adams, Mariloli Vargas-Almeida, Joel Zavala-Cruz, and Enrique Romero-Frasca. "Fertility Deterioration in a Remediated Petroleum-Contaminated Soil." International Journal of Environmental Research and Public Health 17, no. 2 (2020): 382. http://dx.doi.org/10.3390/ijerph17020382.

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A soil that had been remediated by soil washing and chemical oxidation was evaluated, comparing it to an uncontaminated control soil ~30 m away. Profile descriptions were made of both soils over a 0–1 m depth, and samples were analyzed from each soil horizon. Samples were also analyzed from surface soil (0–30 cm). The control soil (a Fluvisol), had several unaltered A and C horizons, but the remediated soil presented only two poorly differentiated horizons, without structure and much lower in organic matter (<0.5%). In surface samples (0–30 cm), the bulk density, sand-silt-clay contents, fi

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2

Zhou, Zihao, Yang Bai, Yuntao Wu, Yiqian Chen, Zhuang Guo, and Weikang Cheng. "Multiscale study on the microstructural evolution and macromechanical deterioration of expansive soil under dry–wet cycles." Journal of Mechanics 38 (2022): 610–20. http://dx.doi.org/10.1093/jom/ufac048.

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Abstract To explore the influence law of dry–wet cycles on the microstructure of expansive soil and the deterioration effect of macroscopic shear strength, the correlation between the change in the soil internal structure and the deterioration of the mechanical properties is analysed. The expansive soil in the test section of the slope support project in Hanzhong city, Shaanxi Province, China, is selected for sample preparation, three groups of different dry–wet cyclic water content variation paths are defined. The volume damage rate of the soil sample caused by dry–wet cycles is tested, and t

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3

Chen, Zongfang, Huie Chen, Jinfeng Li, Hui Li, and Wenliang Ma. "Study on the Changing Rules of Silty Clay’s Pore Structure under Freeze-Thaw Cycles." Advances in Civil Engineering 2019 (April 1, 2019): 1–11. http://dx.doi.org/10.1155/2019/7493872.

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For engineering construction in seasonally frozen regions, when the soil below the frost depth without freeze-thaw effect was exposed or reclaimed after excavation, long-term freeze-thaw will change soil skeleton and porous characteristics, thereby leading to the deterioration of soil engineering properties. This study focused on seasonally frozen silty clay from Changchun, China, and conducted different freeze-thaw cyclic tests on remoulded soil samples, during which both freezing temperature and the number of freeze-thaw cycles were varied. The related data of pore structures under different

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4

B, Seralathan, and Murugaiyan V. "Impact of Limestone Calcined Clay Concrete (LC3) in Various Aggressive Soil Environments: A Comprehensive Review." E3S Web of Conferences 529 (2024): 01054. http://dx.doi.org/10.1051/e3sconf/202452901054.

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Aggressive soil environments are known for causing deterioration in concrete sub-structure and attacking the concrete of the earth structures by chemical contamination of the soil with fluoride, sulfide, and chloride. The degree of deterioration in the soil can vary from rapid dissolution to minor effects. Many construction materials placed underground are exposed to the aggressive action of the soil. Therefore, studying the impact of soil nature on the deterioration of concrete is crucial to maintaining the safety and efficiency of infrastructures. Recent research states that the conception o

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5

Agha, Mooatasim Daood S., and Faris A. Al –Wazzan. "Evaluating the Impact of Gypsum Content on the Physical and Hydraulic Properties of Soils in Arid Regions: A Review." Asian Journal of Soil Science and Plant Nutrition 11, no. 1 (2025): 217–25. https://doi.org/10.9734/ajsspn/2025/v11i1475.

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Gypsum soils constitute approximately 100 million hectares of the world’s area, and approximately 28% of the Iraq s, area. Low gypsum content (about 14%) have a positive effect on improving soil properties, if the soil has a high gypsum content it will lead to a deterioration in the physical, chemical and fertility properties. Gypsum affects physical soil properties, water movement and water functions because it is semi-soluble and thus affects plant growth and productivity. Gypsum soils are generally of a fine texture, and the texture of the surface layer is often loam, while the subsurface

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6

He, Zhigui, Renjun Mao, Juan e. Dong, Zongsuo Liang, Haihua Zhang, and Lin Liu. "Remediation of deterioration in microbial structure in continuous Pinellia ternata cropping soil by crop rotation." Canadian Journal of Microbiology 65, no. 4 (2019): 282–95. http://dx.doi.org/10.1139/cjm-2018-0409.

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Pinellia ternata is a traditional Chinese herb that suffers from continuous cropping (CC), which significantly decreases both yield and quality. The influence of CC on the microbiome in P. ternata rhizosphere and the effects of remediation on microbiota by rotational cropping (CR) were assessed by Illumina high-throughput sequencing technology. CC tends to decrease the α-diversities as a function of cultivation time, whereas CR tends to increase them. Differentially abundant analysis showed that microbial structure was important in maintaining the health status of P. ternata rhizosphere. Resul

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7

Wu, Linjian, Zhouyu Xiang, Han Jiang, Mingwei Liu, Xueli Ju, and Wenxiao Zhang. "A Review of Durability Issues of Reinforced Concrete Structures Due to Coastal Soda Residue Soil in China." Journal of Marine Science and Engineering 10, no. 11 (2022): 1740. http://dx.doi.org/10.3390/jmse10111740.

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Soda residue soil (SRS) is a man-made engineering foundation soil formed by soda residue; it is mainly distributed in coastal areas in China. SRS is rich in a variety of corrosive salts, among which the concentrations of chloride ions are about 2–3 times that of seawater. These highly concentrated chloride ions migrate and diffuse in reinforced concrete (RC) structures built on coastal SRS through multiple transport mechanisms. However, current research on the durability of RC structures exposed to the coastal SRS environment has not led to the publication of any reports in the literature. SRS

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8

Visser, Suzanne, and Dennis Parkinson. "Soil biological criteria as indicators of soil quality: Soil microorganisms." American Journal of Alternative Agriculture 7, no. 1-2 (1992): 33–37. http://dx.doi.org/10.1017/s0889189300004434.

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AbstractDiverse soil microbiological studies have attempted to assess deterioration or improvement in soil quality. These studies have been done on three levels: population level studies of the dynamics of species that are presumed to be important or sensitive; community level studies of microbial community structure, such as species diversity and frequency of occurence of species; and ecosystem level studies of a range of soil processes. We suggest that ecosystem level approaches offer the best possibilities for rapidly assessing changes in soil quality. Data from such studies will allow rese

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9

Cresswell, HP, DE Smiles, and J. Williams. "Soil structure, soil hydraulic properties and the soil water balance." Soil Research 30, no. 3 (1992): 265. http://dx.doi.org/10.1071/sr9920265.

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We review the influence of soil structural change on the fundamental soil hydraulic properties (unsaturated hydraulic conductivity and the soil moisture characteristic) and utilize deterministic modelling to assess subsequent effects on the soil water balance. Soil structure is reflected in the 0 to -100 kPa matric potential section of the soil moisture characteristic with marked changes often occurring in light to medium textured soils' (sands, sandy-loam, loams and clay-loams). The effect of long-term tillage on soil structure may decrease hydraulic conductivity within this matric potential

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10

Zhang, Shurui, Xin Xu, Xiaoqiang Dong, Haomin Lei, and Xun Sun. "Effects of Freeze–Thaw Cycles on the Mechanical Properties and Microstructure of a Dispersed Soil." Applied Sciences 13, no. 17 (2023): 9849. http://dx.doi.org/10.3390/app13179849.

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Dispersed soil is highly sensitive to water and can easily disperse in low-salt water, leading to weakened structures and engineering issues. To investigate the freeze–thaw effects on the mechanical properties and microstructure of dispersed soils in western Jilin Province, we simulated 0, 1, 3, 5, 7, 9, 12, and 15 freeze–thaw cycles. Qualitative and quantitative analyses were performed using numerous methods, including soluble salt determination, density and water content determination, particle size analysis, dispersion identification tests, and scanning electron microscopy (SEM), to investi

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11

Haskevych, Volodymyr. "Profile degradations of podzolic chernozem of the territory of Male Polissia." Visnyk of the Lviv University. Series Geography, no. 51 (December 27, 2017): 98–110. http://dx.doi.org/10.30970/vgg.2017.51.8742.

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The article presents the results of the study of Male Polissia podzolic chernozems profile degradation. The causes and consequences of this dangerous natural and man-made phenomenon resulting in changes in the habitus of soils, losses of soil mass and humus, deterioration of general physical properties and structural and aggregate composition, decrease in soil fertility and agriculture unprofitability on the slopes have been analysed. In the study of the profile degradation of podzolic chernozems, the following methods have been used: comparative-geographical, comparative-profile, soil-catena,

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12

Jin, Qiang, Josep Peñuelas, Jordi Sardans, et al. "Changes in soil carbon, nitrogen, and phosphorus contents, storages, and stoichiometry during land degradation in jasmine croplands in subtropical China." Experimental Agriculture 57, no. 2 (2021): 113–25. http://dx.doi.org/10.1017/s0014479721000089.

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AbstractSoil degradation is characterized by loss of soil organic matter, decline in fertility, imbalance in elemental content, deterioration of soil structure, and overall a deterioration of soil environment. According to the classification method of Pieri et al. (1992), the soil is classified into different degradation classes by calculating the soil structural stability index (St) of each sample point. We aimed to investigate changes in the contents, storages and stoichiometry of soil carbon (C), nitrogen (N), and phosphorus (P) together with changes in soil physical traits along a soil deg

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13

Chude, V. O., E. E. Oku, G. I. C. Nwaka, and M. S. Adiaha. "Soil compaction assessment as a manipulative strategy to improve soil biodiversity: an approach for meeting SDG two and six." Міжвідомчий тематичний науковий збірник "Меліорація і водне господарство", no. 1 (June 25, 2020): 131–43. http://dx.doi.org/10.31073/mivg202001-224.

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The rapid increase in soil deterioration has been a drawback to global development, acting like a barrier to sustainability of Agriculture and the environment. Biodiversity in soil plays a crucial role in ecosystem sustainability, but yet there exist a rapid deterioration in soil biodiversity especially due to increase soil toxins, chemical spills, wind erosion including the rapid down-pour by rainfall which destroys soil structure and degrade soil biota. Soil compaction reduction manipulation through tillage and application of fertilizer plays a major role for food production, apart from bein

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14

Rathi, Abhinav, Pardeep Kumar, Sumit Nangla, Shubham Sharma, and Shalini Sharma. "Soil Restoration Strategies for Sustaining Soil Productivity: A Review." Asian Research Journal of Agriculture 17, no. 1 (2024): 33–48. http://dx.doi.org/10.9734/arja/2024/v17i1408.

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Soil degradation, characterised by a deterioration in quality and a drop in ecosystem products and services, is a key impediment to obtaining the necessary increase in agricultural productivity. Soil is a living and dynamic organism that degrades when standard agricultural practices are used. Healthy soil is a crucial pillar of sustainability because it provides various ecosystem services in addition to controlling microbial activity, nutrient recovery, and decomposition. In human time spans, soil is a non-renewable resource that is vulnerable to deterioration due to complex interactions betwe

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15

Zhi, Chun Hong. "Economic Analysis of Buried Corrugated Steel Culverts Considering Deterioration." Advanced Materials Research 960-961 (June 2014): 281–86. http://dx.doi.org/10.4028/www.scientific.net/amr.960-961.281.

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The characteristics of the corrugated steel culvert and the deterioration of the structure are analyzed. The Life Cycle Cost (LCC) approach is put forward to analysis the initial, maintenance and recycling cost of the different material culverts. The user delay costs are added to the typical LCC values considering the deterioration and the failure of structures. The analysis and the economic comparison results show that the total LCC values at the failure emergency situation is much larger than the situation when the deterioration is considered initiatively. Such economic analysis can help the

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16

Kashperyuk, P. I., A. A. Lavrusevich, and A. M. Martynov. "TO THE ISSUE OF CONSIDERATION THE SEDIMENT OF FOUNDATION SOIL AS A MULTIFACTORIAL ANTHROPOGENIC GEOLOGICAL PROCESS." Gruntovedenie 1, no. 17 (2022): 31–37. http://dx.doi.org/10.53278/2306-9139-2022-1-17-31-37.

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The article substantiates the need to consider the soil sediment of the foundation of any structure not as a vertical displacement of the structure due to compression, compaction or other changes in the rocks lying at its base, but as a multifactorial integral engineering-geological process associated with vertical subsidence of the soil of the base of buildings and structures, due to a decrease in soil volume due to its deformation under load or changes (deterioration) of its strength and deformation properties in the process of natural and technogenic effects. For the first time, S. N. Sotni

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17

Kashperyuk, P. I., A. A. Lavrusevich, and A. M. Martynov. "TO THE ISSUE OF CONSIDERATION THE SEDIMENT OF FOUNDATION SOIL AS A MULTIFACTORIAL ANTHROPOGENIC GEOLOGICAL PROCESS." Gruntovedenie 2, no. 17 (2021): 31–37. http://dx.doi.org/10.53278/2306-9139-2021-2-17-31-37.

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The article substantiates the need to consider the soil sediment of the foundation of any structure not as a vertical displacement of the structure due to compression, compaction or other changes in the rocks lying at its base, but as a multifactorial integral engineering-geological process associated with vertical subsidence of the soil of the base of buildings and structures, due to a decrease in soil volume due to its deformation under load or changes (deterioration) of its strength and deformation properties in the process of natural and technogenic effects. For the first time, S. N. Sotni

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18

Keiblinger, Katharina M., Lisa M. Bauer, Evi Deltedesco, et al. "Quicklime application instantly increases soil aggregate stability." International Agrophysics 30, no. 1 (2016): 123–28. http://dx.doi.org/10.1515/intag-2015-0068.

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Abstract Agricultural intensification, especially enhanced mechanisation of soil management, can lead to the deterioration of soil structure and to compaction. A possible amelioration strategy is the application of (structural) lime. In this study, we tested the effect of two different liming materials, ie limestone (CaCO3) and quicklime (CaO), on soil aggregate stability in a 3-month greenhouse pot experiment with three agricultural soils. The liming materials were applied in the form of pulverised additives at a rate of 2 000 kg ha−1. Our results show a significant and instantaneous increase

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19

Haskevych, Volodymyr, Nadiya Lemeha, and Anastasiya Vishchur. "Dark gray podzolized soils of the Chyzhykiv ridge: problems of degradation and protection." Visnyk of the Lviv University. Series Geography 53 (December 18, 2019): 85–96. http://dx.doi.org/10.30970/vgg.2019.53.10658.

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The results of the research of degradation of dark gray podzolized soils (Luvis Greyzemic Phaeozems) of the Chyzhykiv ridge are presented. The causes and consequences of this dangerous natural and anthropogenic phenomenon are analyzed. It has been established that the intensive agricultural use of soils caused the activation of water erosion processes, the development of physical degradation processes, which lead to soil compaction, deterioration of their general physical properties, and loss of humus. Degradation processes lead to a decrease in soil fertility and unprofitability of agricultur

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20

Abdelmawla, Ahmad, and S. Sonny Kim. "Application of Ground Penetrating Radar to Estimate Subgrade Soil Density." Infrastructures 5, no. 2 (2020): 12. http://dx.doi.org/10.3390/infrastructures5020012.

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Ground penetrating radar (GPR) technology has been widely used in pavement assessment over the last decade. Assessing the subgrade condition and monitoring its temporal variation provide valuable information regarding changes associated with pavement deterioration, allowing for the beneficial prediction of future road maintenance. This paper presents a method to estimate the density and water content of prepared subgrade soils of highly plastic silt using a 2 GHz GPR scan system and a simple exponential model. A bulk density prediction model was developed based on electromagnetic mixing theory

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21

Wang, Ruihong, Kaiqiang Zhao, Can Wei, Xuan Li, Mingxin Li, and Jianfeng Zhang. "Study on the Soil Deterioration Mechanism in the Subsidence Zone of the Wildcat Landslide in the Three Gorges Reservoir Area." Water 15, no. 5 (2023): 886. http://dx.doi.org/10.3390/w15050886.

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The stability of soil mass near the dam bank in the Three Gorges Reservoir is closely related to the periodic variation in the reservoir water level. In order to study the influence of water level variation on soil mass, the soil mass in the water level fluctuation zone of the Wildcat landslide was taken as the research object, and the mechanism of soil mass deterioration in this area was revealed by comparing the strength and mineral structure characteristics of soil mass at different elevations by means of macro- and meso-microscopic analysis. The results show the following: (1) With the inc

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22

Burdukovskii, Maksim, Irina Kiseleva, Polina Perepelkina, and Yuliya Kosheleva. "Impact of different fallow durations on soil aggregate structure and humus status parameters." Soil and Water Research 15, No. 1 (2019): 1–8. http://dx.doi.org/10.17221/174/2018-swr.

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Soil aggregate structure and soil organic matter are closely interrelated and commonly considered as key indicators of soil quality. The aim of this study was to evaluate the effects of different fallow durations on indices of soil structure and humus status indicators. Studies were conducted on abandoned agricultural fields (15, 20 and, 35 years after abandonment). As a reference site, we used a cultivated field in the area. The experimental soil fields are classified as Gleyic Cambisols. Soil macroaggregates were separated with the sieve (dry sieve) to seven aggregate size fractions, i.e.&am

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23

Ziara, Mohamed M. "Structural Rehabilitation of Siad Hashim Historical Mosque in Gaza." Advanced Materials Research 133-134 (October 2010): 1083–88. http://dx.doi.org/10.4028/www.scientific.net/amr.133-134.1083.

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Historical structures in Palestine are subjected to various types of damages due to natural or manmade causes that result in sudden destruction or progressive deterioration. “Siad Hashim” mosque has been subjected to progressive deterioration due to long neglect, abuse, environmental factors, inadequate design and construction, soil settlement, damping, growth of vegetation and other factors that led this structure to a critical condition. This paper describes the nature, cause, assessment and rehabilitation measures corresponding to existing damages. Recent rehabilitation carried out in the s

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24

Turrakheil, Kanishka S., Syed Samran Ali Shah, and Muhammad Naveed. "Evolution of Soil Pore Structure and Shear Strength Deterioration of Compacted Soil under Controlled Wetting and Drying Cycles." Atmosphere 15, no. 7 (2024): 843. http://dx.doi.org/10.3390/atmos15070843.

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This study investigates the evolution of soil pore structure and shear strength deterioration in compacted clayey soil under controlled wetting and drying (wd) cycles, which are expected to become more frequent due to climate change. Thirty soil samples were compacted at optimal moisture content and 90% maximum dry density. These samples were then subjected to 0, 1, 5, 10, and 15 controlled wd cycles from saturation to the wilting point, and volumetric changes were recorded during each cycle. After the wd treatment, the soil samples were scanned using X-ray computed tomography (CT) at 50 μm re

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25

Liu, Gang, Xingyu Zhu, Jiayong Yang, Zhiqiang Zhang, Jilin Song, and Yuda Yang. "Study of Structural Deterioration Behavior of Mining Method Tunnels Under Steel Reinforcement Corrosion." Buildings 15, no. 11 (2025): 1902. https://doi.org/10.3390/buildings15111902.

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Tunnel lining structures, which are subjected to the combined effects of water and soil pressure as well as a water-rich erosion environment, undergo a corrosion-induced damage and degradation process in the reinforced concrete, gradually leading to structural failure and a significant decline in service performance. By introducing the Cohesive Zone Model (CZM) and the concrete damage plastic model (CDP), a three-dimensional numerical model of the tunnel lining structure in mining method tunnels was established. This model takes into account the multiple effects caused by steel reinforcement c

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26

Yang, Zhongping, Xuyong Li, Denghua Li, Yao Wang, and Xinrong Liu. "Effects of Long-Term Repeated Freeze-Thaw Cycles on the Engineering Properties of Compound Solidified/Stabilized Pb-Contaminated Soil: Deterioration Characteristics and Mechanisms." International Journal of Environmental Research and Public Health 17, no. 5 (2020): 1798. http://dx.doi.org/10.3390/ijerph17051798.

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The effects of long-term repeated freeze-thaw cycles and pollution levels on the engineering properties (qu, E50, φ, c, and k) of Pb-contaminated soils were investigated in various laboratory tests. These soils were solidified/stabilized (S/S) with three types of cement-based combined binders (C2.5S5F5, C5S2.5F2.5, and C5S5, cement, lime, and fly ash, mixed in different proportions; these materials are widely used in S/S technology). The strength and permeability coefficient of compound solidified/stabilized Pb-contaminated soils (Pb-CSCSs) were determined based on measurements of unconfined c

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27

Zhang, Zhen, Yonggang Zhang, Guanbao Ye, Shenyi Zhang, Honghui Shen, and Yonggui Chen. "Strength Degradation of Foamed Lightweight Soil Due to Chemical Erosion and Wet-Dry Cycle and Its Empirical Model." Materials 16, no. 19 (2023): 6505. http://dx.doi.org/10.3390/ma16196505.

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Foamed lightweight soils (FLS) have been extensively used as backfill material in the construction of transportation infrastructures. However, in the regions consisting of salt-rich soft soil, the earth structure made by FLS experiences both fluctuation of groundwater and chemical environment erosion, which would accelerate the deterioration of its long-term performance. This study conducted laboratory tests to explore the deterioration of FLS in strength after being eroded by sulfate attack and/or wet-dry cycling, where the influencing factors of FLS density, concentration of sulfate solution

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28

Gorban, V. A. "The role of the structure to provide biogeocenotic soil functions." Ecology and Noospherology 27, no. 3-4 (2016): 89–96. http://dx.doi.org/10.15421/031617.

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There is a presentation of analysis of the structural state role in the manifestation of biogeocenotic soil functions, which are due to their physical, chemical and biochemical, physical-chemical, information, integrity properties. The main role in the formation of the structure of living space manifests itself in existence, due to the presence in soil aggregates of different sizes and structures, of numerous and diverse ecological niches for soil organisms. The participation of structure in providing housing and shelter is evident in its impact on the majority of soil conditions. The role of

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29

Min, Xiangyu, Zhoubin Dong, Huaizhi Bo, et al. "Alternative Soil Substrates Addition Cause Deterioration in Reclaimed Soil Macropore Networks at Eastern Mining Area, China." Sustainability 14, no. 17 (2022): 10519. http://dx.doi.org/10.3390/su141710519.

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Minesoil profiles are reconstructed by alternative soil substrates worldwide. However, some substrates lack appropriate soil characteristics and negatively affect the minesoil functions, these negative impacts are largely caused by the deterioration of macropore structure. Nevertheless, the differences of typical substrate characteristics and their influence on the deterioration are unclear. Thus, we present a case study to analyze macropore number, size, connectivity, distribution, and soil permeability of RMSs with three substrates (MSW, YRS and RM), respectively, using industrial X-ray comp

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Sukarman, Sukarman, Rachmat Abdul Gani, and Asmarhansyah Asmarhansyah. "Tin mining process and its effects on soils in Bangka Belitung Islands Province, Indonesia." SAINS TANAH - Journal of Soil Science and Agroclimatology 17, no. 2 (2020): 180. http://dx.doi.org/10.20961/stjssa.v17i2.37606.

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Tin mining in the Bangka Belitung Islands Province is conducted with an open-pit mining system. This paper discusses the process of tin mining and its effects on soil properties in this region. Tin mining led to the formation of accumulations in the form of (1) mixed soils from horizons A, B, and C, (2) excavated materials from the deeper levels of the pit, (3) coarse-grained tailings with quartz as a primary element, (4) tailings mixed with excavated soils, and (5) voids filled with water. After tin mining ended, the area was left with waste excavated materials, stockpiles of excavated materi

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Curtin, D., H. Steppuhn, and F. Selles. "Structural stability of Chernozemic soils as affected by exchangeable sodium and electrolyte concentration." Canadian Journal of Soil Science 74, no. 2 (1994): 157–64. http://dx.doi.org/10.4141/cjss94-023.

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The stability of soil structure in the presence of exchangeable Na is an important factor determining the success of irrigation developments using sodic waters. Our objective was to determine the effects of sodium adsorption ratio [SAR = Na/((Ca + Mg)/2)0.5, where concentrations are expressed in mmolc L−1] and electrolyte concentration on saturated hydraulic conductivity (K) and on macroscopic swelling in a range of Brown Chernozemic soils from southern Saskatchewan. All soils showed the same general response to sodicity (SAR) and electrolyte concentration of the leaching solution, i.e., K dec

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32

Gromovik, Arkady I., Nadezhda S. Gorbunova, and Tatyana A. Devyatova. "Sorption of labile humus substances by structural-aggregate fractions of eroded chernozems." Сорбционные и хроматографические процессы 23, no. 5 (2023): 948–57. http://dx.doi.org/10.17308/sorpchrom.2023.23/11729.

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Erosion processes are the main cause of degradation of chernozems, which occurs mainly as a result of the loss of soil organic matter and deterioration of the structural and aggregate state. The main part of organic carbon (Corg.) is concentrated in macroaggregates, therefore the destruction of macroaggregate fractions is the main cause of loss of Corg. during the development of erosion processes. The ability of soils to maintain a water-resistant structure is due to the sorption of humus substances, which have amphiphilic properties in them. To the greatest extent, such properties are possess

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33

Xian, Shaohua, Zheng Lu, Hailin Yao, Ran Fang, and Jianbo She. "Comparative Study on Mechanical Properties of Compacted Clay under Freeze-Thaw Cycles with Closed and Open Systems." Advances in Materials Science and Engineering 2019 (April 15, 2019): 1–13. http://dx.doi.org/10.1155/2019/9206372.

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The frost heave and thaw settlement caused by freeze-thaw cycles will seriously affect the engineering properties of soil. This paper attempts to comparatively investigate the deterioration effect of freeze-thaw cycles on the mechanical properties of compacted clay in closed and open systems. The specimens were frozen and thawed from the top to bottom in two systems. The moisture contents and deformations after freeze-thaw cycles were measured. Mechanical parameters of soil were examined through triaxial compression tests. Results show that the moisture content and deformation of soil change e

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34

Sanchez, Charles A., and Jeffrey C. Silvertooth. "Managing Saline and Sodic Soils for Producing Horticultural Crops." HortTechnology 6, no. 2 (1996): 99–107. http://dx.doi.org/10.21273/horttech.6.2.99.

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About 33% of all irrigated lands worldwide are affected by varying degrees of salinity and sodicity. Soil with an electrical conductivity (EC) of the saturated extract >4 dS·m−1 is considered saline, but some horticultural crops are negatively affected if salt concentrations in the rooting zone exceed 2 dS·m−1. Salinity effects on plant growth are generally osmotic in nature, but specific toxicities and nutritional balances are known to occur. In addition to the direct toxic effects of Na salts, Na can negatively impact soil structure. Soil with exchangeable sodium percentages (ESPs) or sat

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Kuncheva, Gergana Slavova. "Comparative Study of Microbial Activity and Chemical Properties of Soil by Implementing Anti-erosion Measure Vertical Mulching with Organic Residues." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 63, no. 1 (2015): 59–63. http://dx.doi.org/10.11118/actaun201563010059.

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Water soil erosion is a phenomenon in which soil particles are separated transported and translocated by the action of rain water. Removal of topsoil by water flow leads to a decrease of humus in the soil, deterioration of soil structure, compaction, and reduction of microbial activity.Developed and tested have been number of methods and technologies for soil protection from the effects of water erosion. Such technology is vertical mulching, and straw or compost applied as mulching material.This work is a study of the changes that occur in some soil chemical properties and soil microbiological

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Juceviča, Edīte, Vendija Grīna, and Viesturs Melecis. "Structure of Collembola Communities in the Urban Gradient of Rīga City." Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences. 77, no. 5-6 (2023): 256–62. http://dx.doi.org/10.2478/prolas-2023-0037.

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Abstract The world’s increasing urbanisation and the deterioration of human quality of life in major cities have redirected the focus of urban planning toward green infrastructure improvement and, as a result, increased the research of urban ecosystems. This article analyses changes in the structure of Collembola communities in soil in the urban-rural gradient in the city of Rīga, Latvia. Soil samples were collected in 21 randomly selected sample plots within six urban habitats: street edge grasslands, downtown parks, private houses, cemetery grasslands, and urban and suburban forests. Soil sa

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Kramariov, S. M., and L. P. Bandura. "Comparison of agrophysical parameters and humus content in the soil of virgin and arable land." Scientific Journal Grain Crops 7, no. 1 (2023): 205–11. http://dx.doi.org/10.31867/2523-4544/0278.

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Topicality. Currently, there is an urgent need to address the following challenges: loss of soil humus content, deterioration of soil agrophysical properties, reduction of the impact of soil agrophysical degradation, restoration and preservation of fertility. Purpose. Comparison of agrophysical parameters and humus content in the soil of virgin and arable lands and development of scientific recommendations on the formation of favourable agrophysical properties and regimes of chernozems to suspend the development of degradation processes in the soil and preserve fertility. Material and Methods.

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Pan, Zhenxing, Gengshe Yang, Wanjun Ye, et al. "Effect of Freeze–Thaw Cycles and Initial Water Content on the Pore Structure and Mechanical Properties of Loess in Northern Shaanxi." Sustainability 15, no. 14 (2023): 10937. http://dx.doi.org/10.3390/su151410937.

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Spalling disease caused by freeze–thaw cycles often occurs on the loess cut-slopes in northern Shaanxi. The deterioration of the pore structure and mechanical strength of loess under a freeze–thaw environment is one of the critical reasons underlying the occurrence of spalling disease in the slopes. In order to explore the effects of freeze–thaw cycles on the pore structure and the mechanical strength of loess, four initial water contents (7%, 9%, 12%, and 14%) and six freeze–thaw cycles (zero, one, three, five, 10, and 20) were considered in this study. Nuclear magnetic resonance (NMR) and tr

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Warlo, Hannes, Klaus von Wilpert, Friederike Lang, and Helmer Schack-Kirchner. "Black Alder (Alnus glutinosa (L.) Gaertn.) on Compacted Skid Trails: A Trade-off between Greenhouse Gas Fluxes and Soil Structure Recovery?" Forests 10, no. 9 (2019): 726. http://dx.doi.org/10.3390/f10090726.

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The compaction of forest soils can deteriorate soil aeration, leading to decreased CH4 uptake and increased N2O efflux. Black alder (Alnus glutinosa) may accelerate soil structure regeneration as it can grow roots under anaerobic soil conditions. However, symbiotic nitrogen fixation by alder can have undesirable side-effects on greenhouse gas (GHG) fluxes. In this study, we evaluated the possible trade-off between alder-mediated structure recovery and GHG emissions. We compared two directly adjacent 15-year old beech (Fagus sylvatica) and alder stands (loamy texture, pH 5–6), including old pla

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Zheng, Xiaowen, Qingwen Ma, Haitao Yan, Xiang Chang, and Fang Guo. "The Study on the Freeze–Thaw Deterioration of Soil Sites Modified with the ZDS-2 Organosilicon Reinforcement Agent." Coatings 14, no. 12 (2024): 1577. https://doi.org/10.3390/coatings14121577.

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Due to the large temperature fluctuations between day and night during the transition from winter to spring, soil sites in seasonally frozen soil areas go through repeated freeze–thaw cycles. During these cycles, the water in the soil undergoes phase transformation and migration, which changes the physical and mechanical properties of the soil and directly affects the stability and durability of the soil site. In order to explore the feasibility of using the ZDS-2 organosilicon reinforcement agent for the anti-freeze-and-thaw protection of soil sites, Qingtai site soil and the ZDS-2 organosili

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Jamalova, O'g'iljon Umarjonovna. "THE NATURAL STATE OF THE RESIDUAL SWAMP AND SANDY DESERT SOILS FORMED IN THE ARAL SEA REGION." Multidisciplinary Journal of Science and Technology 5, no. 4 (2025): 62–74. https://doi.org/10.5281/zenodo.15148775.

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This article investigates the ecological and chemical characteristics of residual swamp and sandy desert soils in the Aral Sea region, focusing on the impacts of climatic changes and anthropogenic activities on these soil types. The study culminates in the collection and analysis of diverse soil samples, relevant environmental data, and historical land use records, revealing significant alterations in soil composition and structure that correlate with shifts in climate and agricultural practices. Key findings highlight the loss of essential nutrients and increased salinization, which have cont

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Kirkham, J. M., B. A. Rowe, and R. B. Doyle. "Persistent improvements in the structure and hydraulic conductivity of a Ferrosol due to liming." Soil Research 45, no. 3 (2007): 218. http://dx.doi.org/10.1071/sr06169.

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Changes in the soil structure and hydraulic conductivity of an Acidic Red Ferrosol were measured in a long-term (1968–2003) fertiliser experiment on pasture in north-western Tasmania, Australia. Studies were initiated following observations of both softer soil surface and cracking on plots that had received 15 t/ha of ground agricultural limestone. Liming decreased penetration resistance and increased hydraulic conductivity. These structural improvements were associated with increased mean dry aggregate size, a small increase in wet aggregate stability, higher exchangeable calcium levels, and

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Chen, Zongfang, Huie Chen, Xiaoqing Yuan, and Qing Zhang. "Experimental investigation into non-collapsible loess-like soil's engineering geological properties under the influence of freeze–thaw cycles." Quarterly Journal of Engineering Geology and Hydrogeology 53, no. 4 (2020): 579–86. http://dx.doi.org/10.1144/qjegh2019-139.

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Recurrent freeze–thaw cycling is a powerful weathering process that subjects soil to frost heave and thaw settlement. The cycling significantly changes the soil structure and leads to particle recombination, ultimately causing deterioration of the soil's properties. Herein, we investigated the effect of freeze–thaw cycles on loess-like soil in seasonally frozen regions; specifically with respect to the engineering geological properties, such as changes in grain-size distribution, liquid–plastic limit and collapse behaviour. The results indicate that over the course of 20 freeze–thaw cycles, th

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R. Shafiei-Tehrany, M. ElGawady, and W. Coffer. "Pushover Analysis of I-5 RAVENNA Bridge." Electronic Journal of Structural Engineering 11 (January 1, 2011): 32–41. http://dx.doi.org/10.56748/ejse.11141.

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Nonlinear pushover analysis is a powerful tool for evaluating the inelastic seismic behavior of structures. This paper presents a detailed seismic analysis of a complex bridge. The I-5 Ravenna Bridge was assessed through nonlinear pushover analyses that highlights many important issues of bridges constructed on hollow core prestressed concrete piles. A three dimensional finite element analysis of the bridge have been carried out including modeling of the bridge bearings, expansions joints, and soil-structure interaction. The nonlinear response of the bridge was investigated from the first pier

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Mydin, Md Azree Othuman, Nor Haslina Ja’afar, Norsafiah Norazman, Mohd Azian Zaidi, and Mohd Nasrun Mohd Nawi. "Appraisal of the Aetiology and Pathology of Soil Settlement-Related Building Defects and Failures." Journal of Advanced Research in Applied Sciences and Engineering Technology 50, no. 1 (2024): 286–307. http://dx.doi.org/10.37934/araset.50.1.286307.

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A building defect refers to flaws or faults in the construction or design of a building, which may arise from errors in the design process or be caused by the impact of a natural disaster. These defects have the potential to reduce the lifespan of the building by compromising its structural integrity. The occurrence can be attributed to inadequate design, substandard workmanship, or non-compliance with the specified design standards. Deficiencies adversely affect the tenants' satisfaction and diminish the intrinsic worth and functionality of the structure. The deterioration of each component e

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Valladares-Samperio, Karla, and Leopoldo Galicia-Sarmiento. "Impacts of forest management on soil properties: a fundamental research topic for Mexico." Revista Chapingo Serie Ciencias Forestales y del Ambiente 27, no. 1 (2020): 33–52. http://dx.doi.org/10.5154/r.rchscfa.2019.11.088.

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Introduction: The increase in the intensity of wood harvesting has a negative influence on ecosystem functions of soils in temperate and boreal forests. Objective: To understand the impacts of intensive and extensive forest management methods on the physical, chemical and biological properties of soils, and consequences on nutrient availability and stabilization processes in temperate and boreal forests. Results and discussion: Intensive forest management methods can generate greater imbalance in the processes of availability and stabilization of nutrients, compared to selective methods. The i

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Asanov, A., S. A. Mameshova, and A. A. Asanov. "INFLUENCE OF HYBRIDIZED AMIDE FUNCTIONAL POLYMERS ON SOIL STRUCTURE FORMATION." Bulletin of Shakarim University. Technical Sciences 1, no. 2(14) (2024): 401–10. http://dx.doi.org/10.53360/2788-7995-2024-2(14)-50.

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In recent years, there has been an increase in soil degradation under the influence of anthropogenic pressure. This leads to decreased fertility and deterioration of environmental quality. In this regard, there is an increasing need to develop new methods for creating and restoring soil structure. Therefore, the article presents the results of a study of the influence of hybrid amide functional polymers on soil structure formation. The relevance of the work is determined by the growing need to develop new methods for creating and restoring soil structure degraded under the influence of human a

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Pandey, Saurabh Raj, Abhishek Raj Ranjan, and Jagriti Kumari. "Assessing the Effects of Organic Amendments on Soil Fertility." Journal of Diversity Studies 2, no. 2 (2023): 9–12. http://dx.doi.org/10.51470/jod.2023.2.2.09.

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In light of the challenges posed by altering climate patterns and increasing population increase, soil degradation represents a substantial danger to the sustainability of agricultural practices and the safeguarding of food supplies. Traditional agricultural techniques, such as genetic modification and excessive chemical treatments, have been a contributing factor in the deterioration of soil health and production. In order to address this issue, soil amendments have emerged as an important intervention that can increase both the quality of the soil and the production of crops. An investigatio

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Petkova, Michaella, Nadezhda Nankova, Viktoriya Kancheva, Silvena Boteva, Anelia Kenarova, and Galina Radeva. "Distribution of microbial abundance in long-term copper contaminated soils from Topolnitsa-Pirdop valley, Southern Bulgaria." BioRisk 20 (May 15, 2023): 23–35. http://dx.doi.org/10.3897/biorisk.20.97795.

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This study presents the distribution of bacterial and fungal abundances in long-term copper (Cu) contaminated soils in Topolnitsa-Pirdop valley – a highly industrialized zone with a number of mines and processing plants for copper and other non-ferrous metals. The bacterial (16S rRNA gene copies) and fungal (ITS rRNA gene copies) were estimated using quantitative PCR technique in five topsoils, differently Cu contaminated (ranging from 28.05 to 198.9 mg kg-1). Bacterial abundance varied in a range of 1.68 × 1011 to 3.24 × 101116S rRNA genes, whereas fungi amounted from 1.95 × 108 to 6.71 × 108

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Singh, Dheerendra, Khumanthem Babina Devi, Ashoka P., et al. "Green Manure: Aspects and its Role in Sustainable Agriculture." International Journal of Environment and Climate Change 13, no. 11 (2023): 39–45. http://dx.doi.org/10.9734/ijecc/2023/v13i113142.

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Continuous cropping and frequent soil cultivation contribute to the breakdown of soil aggregates and the removal of organic matter, which reduces soil fertility and production. Green manuring is a low-cost and efficient approach for reducing the expense of inorganic fertilizers and preserving soil fertility. Due to the mounting problems facing agriculture, including climate change, extreme weather events, soil deterioration, and land contamination as a result of the overuse of chemical fertilizers, many farmers are adding green manuring into their methods to prevent soil erosion, improve soil

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