Article
Geography, Physical
Karol Jewula, Wieslaw Trela, Natalia Wasielka, Stuart G. Archer
Summary: The Upper Permian sequence in the Holy Cross Mountains in Poland contains continental carbonate facies that provide a high-resolution record of paleoclimate and tectonics. Sedimentological analysis of core samples and field observations indicate a gradual increase in water availability and climate seasonality from arid to semi-arid to sub-humid environments. These changes suggest a generally increased wetting at low latitudes of Pangea, linked with the development of greenhouse conditions and enhancement of the intertropical convergence zone.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Chemistry, Physical
Xin Zhang, Alan S. Lea, Anne M. Chaka, John S. Loring, Sebastian T. Mergelsberg, Elias Nakouzi, Odeta Qafoku, James J. De Yoreo, Herbert T. Schaef, Kevin M. Rosso
Summary: Understanding crystallization pathways at nanoscale under high pressure and temperature is challenging. This study used high-pressure atomic force microscopy to directly observe brucite carbonation in water-bearing supercritical carbon dioxide, revealing that the amorphous magnesium carbonate acts as a seed for the crystallization of nesquehonite. Additionally, in situ infrared and thermogravimetric-mass spectrometry analyses indicated the stoichiometry of the amorphous intermediate.
Article
Environmental Sciences
Zhenzhen Wei, Xiaoyun Wan
Summary: The study on the Weihe River Basin showed an increasing trend in NDVI and a decreasing trend in terrestrial water storage (TWS), with a seasonal cycle and a correlation between the two variables. Cultivated vegetation had a significant impact on changes, and there was a 3-month time lag between NDVI and TWS.
Article
Construction & Building Technology
Nuria Oriols, Nati Salvado, Trinitat Pradell, Nuria Jimenez, Marine Cotte, Victor Gonzalez, Salvador Buti
Summary: This study proposes an innovative approach using various micro-analytical imaging techniques to simulate and evaluate the effects of different conditions on the carbonation process in dolomitic mortars. The presence of Mg2+ was found to influence the microstructure and composition of dolomitic mortars, explaining the instability of aging dolomitic mortars observed in historical fresco paintings.
CEMENT AND CONCRETE RESEARCH
(2022)
Article
Construction & Building Technology
Bi Chen, Min Deng, Xiaojun Huang, Liwu Mo, Bei Huang, Xianghui Lan
Summary: This study found that Tetramethylammonium hydroxide (TMAH) has a certain impact on the alkali-silica reaction (ASR) and alkali-carbonation reaction (ACR) in concrete. The presence of TMAH helps to promote the mitigation process of alkali-carbonation reaction (ACR) in concrete with dolomitic aggregates.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Environmental Studies
Encarna Merlo, Antonio J. Mendoza-Fernandez, Esteban Salmeron-Sanchez, Fabian Martinez-Hernandez, Andrea Ortiz-ubeda, Juan Mota
Summary: The study focused on understanding the ionome of a characteristic dolomite species and its applications in terms of nutritional behavior and factors favoring rich and rare flora on dolomitic soils. It found that the species could accumulate potentially phytotoxic elements and transport them from roots to aerial parts of the plant, indicating potential bioindicator or phytoremediation capacity in the plant community.
Article
Geosciences, Multidisciplinary
Marcos Gervasio Pereira, Rafael Cipriano da Silva, Carlos Roberto Pinheiro Junior, Fabio Soares de Oliveira, Eduardo Carvalho da Silva Neto, Ademir Fontana, Anderson Almeida Pacheco, Fabrcio de Arajo Pedron
Summary: This study characterized the diversity of soils in ancient coastal plains in Rio de Janeiro, Brazil. Different profiles were found to have different formation processes, including ferrolysis, clay eluviation/illuviation, and the influence of colluvial sediments. Additionally, a Plinthosol at the top of the toposequence was formed through weathering of the underlying rock, but it is currently in a relictual and degrading condition.
Article
Environmental Sciences
Peter N. Eze, Loago N. Molwalefhe
Summary: This study investigated the pedological indices of a landform in Chobe Enclave, Botswana, aiming to reconstruct the palaeoenvironments and palaeoclimate during its evolution. The results indicate long-term climate change from wet to dry in the late Quaternary. This study also proposed a new calibration of the landform, including pedogenic horizons.
JOURNAL OF SEDIMENTARY ENVIRONMENTS
(2023)
Article
Agronomy
Lingyun Tang, Fengling Ren, Yalin Li, Yu Duan, Nan Sun, Peiyi Zhao, Yuejin Li, Minggang Xu
Summary: This study found that long-term application of manure can promote the fixation of soil inorganic carbon, with factors such as soil organic carbon, exchangeable calcium and magnesium concentrations, and carbonate crystallization affecting the process. In the topsoil, applying manure alone is the most effective way to promote the fixation of inorganic carbon.
Article
Construction & Building Technology
Inta Kirilovica, Inta Vitina, Liga Grase
Summary: The research focused on the microstructural examination of a dolomitic binder synthesized from dolomite flour and clay, revealing the formation of a dense network of prism-type monolithic crystals during the hardening process, contributing to increased durability.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Soil Science
V. N. Golosov, A. L. Collins, N. G. Dobrovolskaya, O. Bazhenova, Yu Ryzhov, A. Yu Sidorchuk
Summary: The study assessed the total soil loss from cultivated land in the Chernozems-Kastanozems belt of European Russia and Siberia, utilizing the soil profile truncation method. It found that topography and precipitation erosion index are critical factors determining soil loss rates, while ploughing duration does not significantly affect the proportion of eroded land.
Article
Geosciences, Multidisciplinary
Ying-Ying Jiang, Zhong-Xiu Sun, Qiu-Bing Wang, Zhong-Ge Sun, Zhuo-Dong Jiang, Hong-Yu Gu, Zamir Libohova, Phillip Ray Owens
Summary: This research evaluated a typical loess profile interbedded with a macroscopic tephra in northeastern China to understand its formation and determine the potential impact of volcanism on climate change. Results showed uniformity in parent material between tephra layers and overlying loess horizons, indicating synchronous deposition of aeolian dust and volcanic materials with pedogenic processes. The study implies that volcanic activity may have influenced local paleoclimate, showing an increase in temperature in warmth and wetness.
Review
Environmental Sciences
Samadhi U. Gunathunga, Emma J. Gagen, Paul N. Evans, Peter D. Erskine, Gordon Southam
Summary: The primary waste product in surface coal mining is overburden, which is the material moved to access the coal seams. This material is stored in large piles until it can be re-contoured for rehabilitation, often taking decades. However, overburden often lacks the necessary properties to support plant growth, so it is necessary to improve its quality through pedogenesis in order to transform it into functional soil. Traditional approaches to reclamation have focused on fertilizer application or plant selection, but a holistic approach that addresses soil organisms, chemistry, structure, and landform can accelerate the transformation of coal spoils into fertile soils.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Polymer Science
Ping Sen Choong, Yen Li Eunice Hui, Chen Chuan Lim
Summary: This study reports the synthesis of amine-CO2 adducts and their CO2 adsorption-desorption characteristics. The results show that the amine-CO2 adducts can exhibit up to 87% CO2 desorption at 60°C after aminolysis with cyclic carbonate. The amine-CO2 adduct is used as both a foaming agent and a comonomer to obtain low-density foams (0.203-0.239 g·cm(-3)) after heating at 50-60°C for 24-48h. This marks the successful synthesis of in situ CO2-blown NIPU foams using an amine-CO2 adduct.
Article
Evolutionary Biology
Karim Benzerara, Elodie Duprat, Tristan Bitard-Feildel, Geraldine Caumes, Corinne Cassier-Chauvat, Franck Chauvat, Manuela Dezi, Seydina Issa Diop, Geoffroy Gaschignard, Sigrid Gorgen, Muriel Gugger, Purificacion Lopez-Garcia, Maxime Millet, Feriel Skouri-Panet, David Moreira, Isabelle Callebaut
Summary: A new gene and protein family associated with cyanobacterial intracellular amorphous calcium carbonate (iACC) biomineralization was identified through comparative genomics. The gene ccyA, when overexpressed, resulted in increased intracellular calcium content in iACC-lacking cyanobacteria. The presence of ccyA was correlated with genes involved in calcium or bicarbonate ion transport and homeostasis, suggesting a functional role in iACC biomineralization. The search for ccyA in publicly available genomes identified additional cyanobacterial strains forming iACC, expanding our understanding of the distribution of cyanobacterial iACC biomineralization.
GENOME BIOLOGY AND EVOLUTION
(2022)
Article
Environmental Sciences
Julio Cesar Ribeiro, Adriano Portz, Fabiana Soares Dos Santos, Marcos Gervasio Pereira, Everaldo Zonta
Summary: This study evaluated the potential use of different doses of onshore oil well drill cuttings and sunflower cake on the growth of sunflower plants and soil chemical attributes. The results provide recommendations for safe application doses and show that a mixture of sunflower cake and drill cuttings can promote plant growth and soil fertility without causing significant increases in sodium content.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Maristela Volpato, Caio F. Andrade, Elton L. Silva, Maria L. Barbosa, Melina D. Andrade, Pedro Rocha, Rafael C. Delgado, Paulo E. Teodoro, Carlos A. Silva, Marcos G. Pereira
Summary: This study analyzed the fire occurrences in Mato Grosso state, Brazil from 2001 to 2015 and correlated them with meteorological conditions and vegetation index. The year 2015 had the highest air temperature, lowest rainfall, lowest relative humidity, and highest surface temperature, resulting in a smaller difference in the number of fire foci between wet and dry seasons. The period from 2002 to 2005 and the years 2007 and 2010 had the highest fire foci, with the majority occurring in the dry season. The classes with the highest fire density were Mining Area, Urban Area, Temporary Crops, and Pasture. Fire foci were negatively correlated with rainfall, relative humidity, and soil water, and positively correlated with wind and surface temperature.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Geography, Physical
Marcos Gervasio Pereira, Rafael Cipriano da Silva, Carlos Roberto Pinheiro Junior, Eduardo Carvalho da Silva Neto, Ademir Fontana, Jolimar Antonio Schiavo, Deyvid Diego Carvalho Maranhao, Antonio Carlos de Azevedo, Anderson Almeida Pacheco
Summary: The study investigated the formation of Umbric Ferralsols in the highlands of Rio de Janeiro state, Brazil. The research explored various factors including soil morphology, micromorphology, physical and chemical soil attributes, soil phytolith assemblages, and delta C-13 isotopic composition to understand the processes involved. The results indicate that climatic changes and past fires have played a significant role in the accumulation of organic matter in these soils. Additionally, the development of the umbric horizon in the profiles was influenced by wetter environmental conditions.
EARTH SURFACE PROCESSES AND LANDFORMS
(2023)
Article
Geosciences, Multidisciplinary
Carlos Roberto Pinheiro Junior, Tiago Rodrigues Tavares, Marcos Gervasio Pereira, Sheila Aparecida Correia Furquim, Fabricio da Silva Terra, Lucia Helena Cunha dos Anjos, Jose Alexandre Melo Dematte, Antonio Carlos de Azevedo, Fabio Soares de Oliveira
Summary: This study aimed to characterize the morphological, physical and chemical attributes, and the spectral behavior of soils in the Araripe Basin to identify the main pedogenetic processes and their degree of weathering. The results showed significant variability of soil attributes influenced by the parent material, and a low degree of weathering due to the dry climate. Authigenic minerals, formed from evaporation processes, were identified in lacustrine environments.
Article
Agricultural Engineering
Tiago Rodrigues Tavares, Eduardo de Almeida, Carlos Roberto Pinheiro Junior, Angela Guerrero, Peterson Ricardo Fiorio, Hudson Wallace Pereira de Carvalho
Summary: The difference in soil matrix limits nutrient analysis via XRF sensors and few strategies have been proposed to mitigate this effect. This research aimed to compare different models for predicting Ca and K in agricultural soils. The results showed that all strategies allowed mitigation of the matrix effect to some extent, with excellent predictive performance. The best models for Ca and K prediction were RS2 and RF, respectively.
Article
Agronomy
Roseclenia Alves Santos, Betania Roqueto Reis, Antonio Carlos Azevedo, Renata Alcarde Sermarini
Summary: This study evaluated the increase in sum of bases (SB) and cation exchange capacity (CEC) of soils amended with commercial rock dust. The findings revealed that the resin method overestimated the SB and CEC measurements. Direct CEC methods and the use of potassium chloride (KCl) were found to be more accurate.
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
(2023)
Article
Environmental Sciences
Carlos Augusto Rocha de Moraes Rego, Paulo Sergio Rabello de Oliveira, Luciano Cavalcante Muniz, Jean Sergio Rosset, Eloisa Mattei, Bruna Penha Costa, Marcos Gervasio Pereira, Izabela Aline Gomes da Silva
Summary: Understanding the impacts of pasture recovery on soil organic matter accumulation processes is crucial. This study compared the levels, stocks, and isotopic abundance of carbon and nitrogen in pastures with different years of recovery and secondary forest in eastern Amazon. Longer recovery time of pastures resulted in higher levels and stocks of C and N in the soil, and preserved stable isotopes of 13C derived from C3 plants in the soil.
ENVIRONMENTAL EARTH SCIENCES
(2023)
Article
Soil Science
Carlos Augusto Rocha de Moraes Rego, Paulo Sergio Rabello de Oliveira, Luciano Cavalcante Muniz, Jean Sergio Rosset, Eloisa Mattei, Bruna Penha Costa, Marcos Gervasio Pereira
Summary: This study aimed to compare the chemical, physical, and biological soil properties in pasture areas managed with different recovery times. The results showed that the longer the recovery time, the greater the beneficial effects on the different soil properties. The pasture recovered to eight years exhibited the best soil physical variables.
REVISTA BRASILEIRA DE CIENCIA DO SOLO
(2023)
Review
Soil Science
Dener Marcio da Silva Oliveira, Rose Luiza Moraes Tavares, Arcangelo Loss, Beata Emoke Madari, Carlos Eduardo Pellegrino Cerri, Bruno Jose Rodrigues Alves, Marcos Gervasio Pereira, Mauricio Roberto Cherubin
Summary: Climate-smart agriculture (CSA) practices, including no-tillage, cover cropping, organic amendments, and crop-livestock and crop-livestock-forestry systems, have been widely adopted in Brazilian Cerrado and can contribute to climate change mitigation through soil carbon sequestration. A systematic review of 87 papers and 621 data pairs showed that all evaluated CSA practices resulted in average positive rates of soil carbon stock change, indicating soil carbon accretion after adoption. However, further research and statistical comparisons are needed to validate these estimations.
REVISTA BRASILEIRA DE CIENCIA DO SOLO
(2023)
Article
Soil Science
Antonio Carlos de Azevedo, David Andrew Charles Manning
Summary: The term Sum of Bases has different meanings in Soil Science and the Remineralizer Regulations. This can lead to misunderstandings, especially between the agricultural and mining communities, hindering the progress in the use of this soil amendment. In this scientific note, we propose using subscripts R (for Rock) and S (for Soil) to differentiate between the two definitions. This approach helps avoid confusion and facilitates the correct interpretation of laboratory data. We provide a practical example, a conversion table, and a formula to estimate the potential increase in SBS caused by SBR.
REVISTA BRASILEIRA DE CIENCIA DO SOLO
(2023)
Article
Soil Science
Ana Paula Pessim de Oliveira, Eduardo Carvalho da Silva Neto, Robson Altiellys Tosta Marcondes, Marcos Gervasio Pereira, Marcelo Souza Motta, Yan Vidal de Figueiredo Gomes Diniz, Hugo de Souza Fagundes, Rafael Coll Delgado, Otavio Augusto Queiroz dos Santos, Lucia Helena Cunha dos Anjos
Summary: This study examined the short- and medium-term effects of prescribed fire on soil chemical properties and fractions of soil organic matter in a high-elevation grassland environment. The results showed that prescribed fire had varying effects on soil properties in different landscape positions and soil layers. The medium-term effect of fire in the backslope area was negative, leading to soil degradation, while the system in the footslope area showed greater resilience to the effects of fire.
REVISTA BRASILEIRA DE CIENCIA DO SOLO
(2023)
Article
Soil Science
Juvenal Martins Gomes, Wilbert Valkinir Cabreira, Sandra Santana de Lima, Rodrigo Camara de Souza, Raissa Nascimento dos Santos, Ana Licia Patriota Feliciano, Luiz Carlos Marangon, Marcos Gervasio Pereira
Summary: This study investigated the impact of native forest restoration strategies on the epigeal fauna as a bioindicator of soil quality and ecosystem sustainability in the Caatinga biome in Brazil. The results showed that different restoration strategies had varying effects on the diversity and trophic guilds of the epigeal fauna.
Article
Geosciences, Multidisciplinary
David Dominguez-Santos, Daniel Valderrama, Ahmet Utku Yazgan
Summary: This document presents a study comparing the spectra of large-magnitude seismic records in Chile between 2012 and 2022 with the design spectra of NCh433 and D. S 61. The aim is to determine if Chile's seismic-resistant regulations are updated to the existing reality and propose new design spectra that better represent the seismic activity in Chile during the last decade.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Prabhu Palanisamy, Vivek Sivakumar, Priya Velusamy, Logesh Natarajan
Summary: Shoreline changes in the southern coast of Rio de Janeiro, Brazil, were analyzed from 1986 to 2018. The study found that both natural and human factors significantly impact shoreline changes. The findings provided important insights into predicting future shoreline positions and identifying vulnerable regions. Additionally, human activities were found to influence shoreline change models, emphasizing the need for effective management strategies to protect ecosystems and communities.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Irina Salgado Bernal, Periyasamy Sivalingam, Armando Martinez Sardina, Michel Manduca Artiles, Maria E. Carballo Valdes, John Pote
Summary: This study investigated the presence of 15 toxic metals in surface sediment in a tropical river ecosystem in Cuba. The results showed that the sediments had higher concentrations of four metals compared to Cuban norms. Various contamination indices were calculated, and correlations analysis revealed the main sources of contamination. The study provides important information for the management of the river and emphasizes the need for metal pollution control and monitoring.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Camila Morgan, Eduardo Morgado, Miguel-Angel Parada, Raimundo Brahm, Francisca Mallea-Lillo
Summary: Lanin volcano is a composite volcano in the Andes, which has erupted lava flows with different compositions. The volcano's magma reservoir contains a crystal mush, and the pre-eruptive conditions include temperature, pressure, and oxygen fugacity. Fractional crystallisation has led to the evolution of the magma with different compositions.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Benjamin Idini, Sergio Ruiz, Jean-Paul Ampuero, Felipe Leyton, Efrain Rivera
Summary: This study investigates the role of wedge integrity on the frequency content of strong ground motion produced by subduction earthquakes in Northern Chile. The results show that the frequency characteristics of seismic waves vary with hypocentral distance, indicating lateral variations in anelastic attenuation due to the heterogeneous tectonic structure.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2024)