Article
Physics, Applied
Jing Zhang, Zhuowei Guo, Shengjun Sang, Chenchen Li, Bin Li, Dan Zhang, Lifeng Xie
Summary: An improved explosive consolidation device was used to fabricate bulk nano-aluminum materials with high density, hardness, and strength. By adjusting the detonation velocity, the production of Mach holes was reduced, resulting in aluminum with uniform microstructure and a grain size of 80 nm. The explosively consolidated aluminum had four times the hardness and double the compressive strength compared to industrially prepared aluminum.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Agronomy
Xianliang Wang, Jin He, Mingyue Bai, Lei Liu, Shang Gao, Kun Chen, Haiyang Zhuang
Summary: Traffic-induced soil compaction in the field has become an important constraint to sustainable agricultural development. This study found that tractors with small axle-loads generate higher soil additional stress at 0-20 cm depth, while tractors with large axle-loads generate higher soil additional stress at 20-80 cm depth. The compaction by different levels of tractor load inhibited key growth indicators of maize, resulting in yield reductions.
Article
Engineering, Chemical
Amalia Thomas, Jamie Clayton
Summary: The distribution of stresses transmitted by compressed powder onto the containing vessel base and side walls is investigated in this study. It is found that a uniform pressure on the base is only achieved when the compressed powder column is taller than a critical value. Additionally, high radial stresses are measured on the vessel side wall in the region below the piston.
Article
Engineering, Environmental
Xue Li, Jiankun Liu
Summary: This research investigates the particle breakage of porous and angular calcareous sand under high-stress levels, with findings that fine-grained soil (FS) can relieve particle breakage and the combination of pressure and relative compaction has a complex effect on the relative crushability ratio.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2021)
Article
Forestry
David H. McNabb, Andrei Startsev
Summary: The processes responsible for the natural recovery of compacted forest soils are not well understood. This study found that soil moisture plays an important role in the bulk density of the soil, with significant increases in bulk density occurring when the soil water potential is wetter than -25 kPa. The rebound and disruption of soil biological processes were identified as factors contributing to an additional increase in bulk density after 1 year. However, the recovery of bulk density in trafficked soil did not occur even after 7 years. This suggests that the freeze-thaw process as a decompaction agent is more complex than commonly assumed.
Article
Agricultural Engineering
Tiago Zoz, Cassio de Castro Seron, Carlos Eduardo da Silva Oliveira, Mauricio Dutra Zanotto, Jose Antonio Maior Bono, Eduardo Barreto Aguiar, Travis Wilson Witt
Summary: This study evaluated the growth of dwarf castor hybrids under different soil bulk density levels, suggesting that castor can be grown in areas with soil compaction problems. The results showed that castor hybrids and cultivars had similar shoot and root dry matter partitioning under high soil bulk density conditions, with the highest dry matter accumulations estimated around 1.60 Mg m(-3).
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Soil Science
Jalal D. Jabro, William B. Stevens, William M. Iversen, Upendra M. Sainju, Brett L. Allen
Summary: Tillage practices have a significant impact on soil properties such as cone index, bulk density, and gravimetric water content, with differences observed between no-till (NT) and conventional tillage (CT) systems in both corn and soybean rotations over a span of several years. While CT showed lower values of cone index and bulk density compared to NT, there were no significant differences in gravimetric water content between the two tillage systems.
SOIL & TILLAGE RESEARCH
(2021)
Article
Soil Science
Hengfei Wang, Li Wang, Xinjun Huang, Weida Gao, Tusheng Ren
Summary: This study proposed a simplified empirical model to estimate soil penetrometer resistance (PR) by incorporating relative bulk density, soil water matric potential, and soil depth. The new model showed significantly improved accuracy compared to previous models when applied to different textures of soils.
SOIL & TILLAGE RESEARCH
(2021)
Article
Engineering, Multidisciplinary
Yu-hao Wu, Yan-hao Feng, Li-wu Fan, Qing Wang, Xin Song, Zi-tao Yu
Summary: This study investigates the thermal conductivity variation of compacted backfill soil and finds that the moisture content, particle size distribution, and chemical composition of the soil have significant effects on its thermal conductivity. Regression analysis is used to propose prediction formulas for the thermal conductivity of two categories of compacted backfill soils, which can be used in practical applications.
JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE A
(2022)
Article
Soil Science
Fabricio da Silva Barboza, Lizete Stumpf, Eloy Antonio Pauletto, Claudia Liane Rodrigues de Lima, Luiz Fernando Spinelli Pinto, Thais Murias Jardim, Jefferson Prass Pimentel, Renata Pinto Albert, Gisele Aparecida Vivan
Summary: The study found that mine soil is highly susceptible to compaction from machine traffic events after topographic reconstruction, especially during the first pass. Before reconstruction, Proctor testing of the topsoil is necessary to establish soil moisture levels and minimize the negative impacts of machine traffic.
SOIL & TILLAGE RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Zhiqiu Xiao, Na Yu, Jing An, Hongtao Zou, Yulong Zhang
Summary: This study aimed to evaluate the response of soil mechanical parameters to soil water content and soil organic matter content (SOM), and investigate the physical properties of disturbed soils in a black soil region in Northeast China. The results showed that soil mechanical parameters were significantly influenced by SWS and SOM, as well as their interaction. Structural equation modeling revealed that increasing SOM and ensuring suitable soil water content could be applied as management strategies to minimize soil compaction and improve soil resilience, promoting the sustainable development of agriculture in Northeast China.
Article
Engineering, Civil
Tianrui Li, Jiagui Liu, Yuqing Ding, Tiequan Kong, Guokai Zhang, Ning Zhang, Gan Li
Summary: The interaction of moisture content, strain rate, and dry density affects the dynamic mechanical properties of sandy soils with certain cohesion at high strain rates. The compaction degree can be used as a substitute for dry density, and increasing compaction degree enhances the uniaxial compressive strength of sandy soil while reducing moisture content weakens it. The compressive response of sandy soil is also sensitive to strain rate.
TRANSPORTATION GEOTECHNICS
(2022)
Article
Construction & Building Technology
Sihong Liu, Siyuan Xu, Ping Wu, Liaorong Wan, Jianhua Li
Summary: The study reveals that for S-RM with low contents of diorite porphyrite, the compaction densities can be reasonably evaluated using the additive mass method (AMM); while for S-RM with high contents of diorite porphyrite, analyzing the correlation between similar Δm-2 obtained in advance by AMM is necessary for reasonable compaction density evaluation.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Junlin Liang, Zhiming Yan, Hongliu Rong, Xiaolong Yang, Tao Fu, Hongjie Liang, Jicheng Wu, Liunan Wang
Summary: This study used a similar grading method to scale down rockfill and explore the suitability of the standard compression rate test method for rockfill. The test results showed that the density property, maximum compression rate, and strength property of rockfill varied with the solid phase volume ratio between skeleton and gap-filling particles.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Engineering, Civil
Syfur Rahman, Mohammad Jamal Khattak, Bikash Adhikari, Sambodh Adhikari
Summary: A discrete element model was developed to simulate cemented soil mixtures with different micro bond intensities, and the calibrated micro properties were used to accurately predict the stress-strain behavior. The simulations showed the distribution of forces and microdamage at different loading stages, and the agreement between simulation and actual behavior was good, providing new insights into the mechanical properties of the mixtures.
TRANSPORTATION GEOTECHNICS
(2021)
Article
Green & Sustainable Science & Technology
Luis Eduardo Akiyoshi Sanches Suzuki, Dalvan Jose Reinert, Marlene Cristina Alves, Jose Miguel Reichert
Summary: Soil compaction is a widespread issue in agricultural areas worldwide, and defining critical values of physical properties associated with compaction is crucial for decision making.
Article
Environmental Sciences
Jose Miguel Reichert, Paulo Ivonir Gubiani, Danilo Rheinheimer dos Santos, Dalvan Jose Reinert, Celso Aita, Sandro Jose Giacomini
Summary: Environmental monitoring of small, rural watersheds in southern Brazil was conducted to assess the impact of soil conservation and environment management practices. The study found that soil physical, chemical, and biological properties played a decisive role in defining agricultural soils in rural watersheds. Tobacco farming practices led to rapid degradation of soil properties, highlighting the need for reorienting soil management to prevent further degradation and restore soil quality.
INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH
(2022)
Article
Agronomy
Deonir Secco, Dalvan Jose Reinert, Jose Miguel Reichert, Araceli Ciotti De Marins, Doglas Bassegio
Summary: Improving and preserving soil quality in no-tillage areas is crucial for achieving high productivity and environmental preservation. This study evaluated the effect of soil compaction and initial water saturation on soil pre-consolidation pressure and compaction index of two Oxisols, in order to estimate maximum loads without causing irreversible damage to soil structure. The results showed that increase in clay content and bulk density, and reduction in soil moisture led to an increase in soil pre-consolidation pressure and a decrease in compaction index. The findings suggest that further soil wheeling and natural reconsolidation do not affect soil pre-consolidation and compaction susceptibility in already consolidated no-tillage Oxisols.
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
(2023)
Article
Soil Science
Jose Miguel Reichert, Bruno Morales, Edberto Moura Lima, Franciele de Bastos, Cedinara Arruda Santana Morales, Elias Frank de Araujo
Summary: Soil fertility in forestry systems has often been limited to soil nutrients, neglecting soil morphological attributes and physical properties. This study aimed to analyze the influence of soil properties on the growth and productivity of two Eucalyptus species in different soil types. The results showed that tree growth was influenced by soil attributes, but the correlation between dominant tree height and soil properties was weak. Tree height and diameter at breast height were not affected by Eucalyptus species or soil type.
SOIL & TILLAGE RESEARCH
(2023)
Article
Environmental Sciences
Gizachew Ayalew Tiruneh, Derege Tsegaye Meshesha, Enyew Adgo, Atsushi Tsunekawa, Nigussie Haregeweyn, Ayele Almaw Fenta, Tiringo Yilak Alemayehu, Getachew Ayana, Jose Miguel Reichert, Kefyialew Tilahun
Summary: This research aimed to develop a regression model based on Vis-NIR-SWIR spectral reflectance to monitor and model soil properties rapidly. With the use of standard laboratory procedures, the study area's soil samples were analyzed, and strong spatial dependence was observed. Prediction models for clay content and soil organic carbon (SOC) were established to accurately forecast soil fertility indicators, which can aid in optimizing soil management strategies, increasing crop productivity, and ensuring ecological integrity for farmers and policymakers.
REMOTE SENSING APPLICATIONS-SOCIETY AND ENVIRONMENT
(2023)
Article
Soil Science
Luis Eduardo Akiyoshi Sanches Suzuki, Fabricio de Araujo Pedron, Rodrigo Bomicieli de Oliveira, Ana Paula Moreira Rovedder
Summary: This study characterized the morphological, physical-hydric, and chemical properties of Quartzipsamments under sandyzation in southwest Rio Grande do Sul State, Brazil. The results showed that these soils are highly susceptible to erosion, with high macroporosity and saturated hydraulic conductivity, but low organic matter and clay content. However, increasing pH and organic matter can improve the fertility of these soils. It also highlighted the low volume of available water and the potential risk of leaching and aquifer contamination, emphasizing the need for conservation practices when using these soils.
Article
Soil Science
Luis Eduardo Akiyoshi Sanches Suzuki, Rodrigo de Lima do Amaral, William Roger da Silva Almeida, Mariana Fernandes Ramos, Marcio Renato Nunes
Summary: Soil erosion is a major problem in agricultural areas worldwide, and straw mulching is a conservation practice that can reduce soil runoff. This study aimed to quantify and characterize runoff under different levels of oat straw mulching and analyze the cost of soil erosion.
Review
Biotechnology & Applied Microbiology
Charles Dumontet, Janice M. M. Reichert, Peter D. D. Senter, John M. M. Lambert, Alain Beck
Summary: Antibody-drug conjugates (ADCs) combine the specificity of monoclonal antibodies with the potency of cytotoxic agents. The technology to develop these agents has improved in past years, but toxicity remains a key issue. This Review provides a broad overview of the recent advances and challenges in ADC development for cancer treatment.
NATURE REVIEWS DRUG DISCOVERY
(2023)
Article
Soil Science
Jordano Vaz Ambus, Gabriel Oladele Awe, Paulo Cesar de Faccio Carvalho, Jose Miguel Reichert
Summary: Integrated Crop Livestock Systems (ICLS) are important for diversification and sustainable food production. The effects of ICLS on soil structure in lowlands are unknown. This study in southern Brazil investigated the influence of different management systems on Planosol soil. The results showed that ICLS, even without tillage and with animal trampling, maintained the same physical condition as tilled systems and increased available water. The study also found that organic material and roots were crucial for maintaining porosity in all systems.
SOIL & TILLAGE RESEARCH
(2023)
Article
Agronomy
Gizachew Ayalew Tiruneh, Tiringo Yilak Alemayehu, Derege Tsegaye Meshesha, Enyew Adgo, Gebrehiwot Ayalew Tiruneh, Jose Miguel Reichert
Summary: This study aimed to map soil management-related soil maps in Ethiopia and determine their spatial correlation at a separation distance of 29 m. Soil samples were collected from a 560 ha land, and pH, Olsen extractable phosphorus (Olsen-P), and organic carbon (OC) were determined. The results showed low variability in soil pH, high variability in Olsen-P, and large variations in soil OC content. The inverse distance weighting (IDW) model outperformed the ordinary kriging (OK) model in spatial interpolation. These soil maps can aid in improving soil management alternatives, increasing crop productivity, and ensuring environmental quality.
AGROSYSTEMS GEOSCIENCES & ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Cristina Gouvea Redin, Mirian Lago Valente, Daiane Deckmann Andriollo, Alberto Vasconcellos Inda Junior, Elias Frank de Araujo, Jose Miguel Reichert
Summary: Edaphic influence on plant distribution in the Pampa biome plays a crucial role, and the relationship between soil properties and vegetation diversity is examined in this study. The results suggest that sites covered naturally by grassland should be protected and restored using endemic species rather than enriching with forests as commonly recommended.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2023)
Article
Green & Sustainable Science & Technology
Lucas Contarato Pilon, Jordano Vaz Ambus, Elena Blume, Rodrigo Josemar Seminoti Jacques, Jose Miguel Reichert
Summary: This study analyzed the quality of soil and herbaceous vegetation in citrus orchards under different management systems in different seasons. The results showed that biodynamic and agroforestry management systems had better indicators in terms of soil quality and ecosystem value. In conclusion, these systems are the best options for maintaining soil quality and functioning in citrus production.
Article
Geosciences, Multidisciplinary
Eliara Marin Piazza, Mirian Lago Valente, Soraia Girardi Bauermann, Jose Miguel Reichert
Summary: The Pampa biome vegetation, consisting of native grassland and forests, plays a crucial role in the conservation and management of the biome. This study analyzed the landscape-soil-pollen relationships in the Campanha region of the Pampa biome in Brazil to understand the dynamics of grassland and forest mosaics. The results showed that grassland vegetation predominates in the region, even under unfavorable climatic conditions, indicating the resilience and importance of grassland formations. The findings contribute to the understanding of the Pampa flora and have practical implications for the restoration of degraded areas.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2023)
Article
Green & Sustainable Science & Technology
Tiago Stumpf da Silva, Luis Eduardo Akiyoshi Sanches Suzuki, Cassio Antonio Tormena, Marcelo Raul Schmidt, Michael Mazurana, Renato Levien
Summary: This study evaluated the physical-hydric properties of soil under different soil management systems and found that a no-tillage system can reach similar structural stability as continuous tillage after a certain period. The crops had minimal influence on soil properties, but the roots of maize were less sensitive to soil compaction, highlighting their importance in soil conservation.
