Review
Chemistry, Multidisciplinary
Alidu Rashid, Numair Ahmed Siddiqui, Cornelius Borecho Bavoh, Akm Eahsanul Haque, Muhammed Usman, Sani Ado Kasim, Mohamed A. K. ElGhali, Syahrir Ridha
Summary: This study aims to provide researchers with all the necessary information about potential hydrocarbon-producing areas in Malaysia and the various lithologies connected to them by analyzing all earlier studies carried out in Malaysia. According to the data, the Bintulu, Pinangah, Begrih, Liang, and Tanjong formations have the highest potential to generate hydrocarbons in Malaysia, while the Kroh, Setap, Kalabakan, Temburong, and Belaga formations have the least potential. It is recommended that critical exploration activities be focused on the tertiary-aged formations, particularly those in East Malaysia, in order to increase Malaysia's hydrocarbon production.
APPLIED SCIENCES-BASEL
(2022)
Article
Environmental Sciences
Nur Azima Busman, Lulie Melling, Kah Joo Goh, Yazid Imran, Faustina E. Sangok, Akira Watanabe
Summary: Information on temporal and spatial variations in soil greenhouse gas (GHG) fluxes from tropical peat forests is essential to predict the influence of climate change and estimate the effects of land use on global warming and the carbon (C) cycle. Measurement of soil CO2 and CH4 fluxes, as well as analysis of soil physicochemical properties and environmental variables, were conducted in three major forest types in Malaysia for eight years. The results showed that there were variations in soil CO2 and CH4 fluxes between different forest sites, and the variations were influenced by factors such as groundwater level, soil properties, and temperature.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Bodhisatwa Hazra, Deependra Pratap Singh, Prasenjeet Chakraborty, Pradeep K. Singh, Santi Gopal Sahu, Ashis K. Adak
Summary: The Rock-Eval pyrolysis-stage and oxidation-stage parameters are used for source-rock screening and thermal maturity assessment, with S4T(max) curve being identified as a potential thermal maturity proxy for shales. S4T(max) shows good differentiation for shales of different maturity levels.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Mariama Kaba, Valerie Mesnage, Issa Sakho, Serigne Faye, Mohammed Boussafir
Summary: This research investigates the composition and evolution of soil organic matter in the Mboro wetland of the Niaye region in Senegal, which is crucial for understanding the impact of environmental pressures on soil and wetland ecosystems.
Article
Energy & Fuels
A. Arysanto, R. Littke, M. Dorner, M. Erdmann, S. Grohmann
Summary: This study proposes a new approach to investigate hydrocarbon generation and migration processes in petroleum source rocks under laboratory conditions. The researchers used programmed open-system pyrolysis on small source rock plugs to induce changes in the type and distribution of solid bitumen. Organic petrography was used to qualitatively investigate the changes before and after the pyrolysis experiments. The results showed that thermal extraction and chemical extraction can alter the distribution of solid bitumen in the source rock plugs.
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Maricarmen Igarza, Mohammed Boussafir, Michelle Graco, Abdelfettah Sifeddine, Jorge Valdes, Dimitri Gutierrez
Summary: The study analyzed surface sediment samples along the Peruvian continental margin and found that organic matter in recent sediments is mainly of marine origin and predominantly amorphous in nature. Accumulation and preservation of organic matter vary spatially due to different oceanographic conditions and productivity centers, impacting the depositional environments.
Article
Geochemistry & Geophysics
Lorenza Pacini, Thierry Adatte, Pierre Barre, Mohammed Boussafir, Nicolas Bouton, Lauric Cecillon, Violaine Lamoureux-Var, David Sebag, Eric Verrecchia, Adrien Wattripont, Francois Baudin
Summary: The thermal analysis technique Rock-Eval (R) is increasingly used for characterizing soil organic matter, but knowledge about the expected analytical errors is necessary for interpreting the results and comparing samples. This study measured the reproducibility of Rock-Eval measurements using different instruments from two generations and found that certain parameters, such as total organic carbon and mineral carbon, were well reproducible, while others, like hydrogen index and oxygen index, were more sensitive to signal variations. The PartySOC predictions were reproducible within the same generation but not across generations.
ORGANIC GEOCHEMISTRY
(2023)
Article
Geosciences, Multidisciplinary
Asmaa F. El-Moghazy, Amr S. Deaf, Nader A. A. Edress
Summary: The Wakar Formation in the offshore concessions in the eastern Mediterranean in Egypt is an important formation for gas production. However, there are no comprehensive studies on the geochemistry and palynofacies of this formation. This study investigates the history of depositional events and reveals that the organic matter belongs to types IIIC and III of coastal and delta settings. The formation consists of iron shale and sandstone facies, and the prevailing paleoclimate is arid and semi-arid conditions.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Energy & Fuels
Hafidz Noor Fikri, Reinhard F. Sachsenhofer, Achim Bechtel, Doris Gross
Summary: Coal seams of different ages in the Barito Basin in Borneo were studied to compare their characteristics. The study revealed differences in peat types, flora, and climate between the Late Eocene and middle Miocene coals. The Miocene coals were significantly thicker and displayed a cyclic structure compared to the Eocene coals. The Miocene coals were dominated by more decay-resistant angiosperm trees and had a higher abundance of preserved plant tissues. Fungal activity was high in both Eocene and Miocene coals.
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Mohammad Parandavar, Jalil Sadouni
Summary: The hydrocarbon source potential of the Paleogene Pabdeh Formation was studied using organic geochemistry and distribution of calcareous nannofossils. An Eocene-aged organic matter-rich interval was identified and traced across different parts of the studied area, with remarkable variations in thickness and source potential correlated with Rock-Eval total organic carbon (TOC) and hydrogen index (HI) values. The maturity of the Pabdeh Formation in the area was found to have reached the oil window, indicating significant hydrocarbon generation potential.
JOURNAL OF EARTH SCIENCE
(2021)
Article
Chemistry, Analytical
Jeremy Jacob, Frederic Delarue, Yoann Copard, Claude Le Milbeau, Laurent Grasset, Patrick Brockmann
Summary: Natural organic matter (OM) has a complex structure, and its complete structural and chemical description poses a challenge. The Rock-Eval (R) device is a fast and affordable method for obtaining key quantitative and qualitative parameters on OM. This study compares Rock-Eval (R) pyrolysis with total ion current (TIC) traces obtained by a temperature-programmed pyrolyzer coupled to a standard mass spectrometer (Py-MS) to determine the extent to which this approach can be generalized. The results show good quantitative and qualitative agreements between the two methods, providing support for the assumption of deconvoluting S2 pyrograms.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Geochemistry & Geophysics
Esmat Abou El-Anwar, Salman Salman, Doaa Mousa, Sami Aita, Walid Makled, Thomas Gentzis
Summary: The study evaluated the properties of organic-rich black shale in the El Sebaiya area in Egypt, finding it to be composed of quartz, calcite, kaolinite, and montmorillonite. The shale was deposited under marine conditions and has a range of organic richness and hydrocarbon potential. Organic petrography suggests that the kerogen is mixed types II/III and III and is immature to marginally mature, with the potential for oil and gas generation at higher maturity levels.
Review
Ecology
Shu Kee Lam, Jordan P. Goodrich, Xia Liang, Yujing Zhang, Baobao Pan, Louis A. Schipper, Yiyi Sulaeman, Lee Nelson, Deli Chen
Summary: Conversion of tropical peat swamp forests for industrial plantations and agriculture leads to significant carbon loss. Management practices, such as raising the water table and reducing nitrogen fertilizer inputs, can help mitigate greenhouse gas emissions.
FRONTIERS IN ECOLOGY AND THE ENVIRONMENT
(2022)
Article
Energy & Fuels
Peng-Yan Du, Jin-Gong Cai, Qing Liu, Xue-Jun Zhang, Juan Wang
Summary: This study investigates the impact of different occurrences of organic matter (OM) on hydrocarbon generation in mudstones. The results indicate that mineral-bound organic matter (MOM) is the most abundant form of OM and serves as the main hydrocarbon precursor in shallow formations. Soluble organic matter (SOM) contributes to hydrocarbon generation mainly at deep depths, while particulate organic matter (POM) shows consistent hydrocarbon contributions regardless of depth.
Article
Multidisciplinary Sciences
Chloe Brown, Doreen S. Boyd, Sofie Sjogersten, Christopher H. Vane
Summary: In this paper, organic geochemical analysis and remote sensing data were used to predict peat conditions and carbon storage in the North Selangor Peat Swamp forest, Malaysia. The study found that degraded peatland areas can be identified using remotely sensed data, which can be used to support conservation and restoration efforts.
Article
Ecology
Cecilia M. Prada, Benjamin L. Turner, James W. Dalling
Summary: The differences in nutrient acquisition pathways between arbuscular mycorrhizal (AM) and ectomycorrhizal (EM) fungi may influence seedling growth and nitrogen availability in montane forests of Central America.
FUNCTIONAL ECOLOGY
(2022)
Article
Engineering, Environmental
Dan Sun, Wen Zhang, Huayuan Feng, Xinyuan Li, Ran Han, Benjamin L. Turner, Rongliang Qiu, Yue Cao, Lena Q. Ma
Summary: Research on the novel root-specific phytase PvPHY1 from As-hyperaccumulator Pteris vittata showed that it can efficiently utilize organic phosphorus in soil, enhancing plant growth and P accumulation. PvPHY1 facilitates P uptake from soils and phytate hydrolysis in plants, thus promoting tobacco growth.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Soil Science
M. J. Briones, R. Juan-Ovejero, N. P. McNamara, N. J. Ostle
Summary: Climate change affects plant communities and soil abiotic conditions in peatlands, which in turn impacts belowground decomposers and ecosystem C turnover. The study found that peat microbial communities are more influenced by local abiotic conditions than above-ground vegetation. Peatlands can serve as early-warning indicators of climate-carbon feedbacks.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Review
Engineering, Environmental
Xue Liu, Ran Han, Yue Cao, Benjamin L. Turner, Lena Q. Ma
Summary: This article introduces the availability of phytate in soils and the process of phytate-P acquisition by plants. It also discusses agronomic approaches and biotechnological strategies to improve soil phytate-P utilization by plants, and raises questions that need further research. This information helps to enhance the efficiency of phytate-P utilization by plants, thereby reducing the demand for phosphorus resources and pollution risks to the environment.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Plant Sciences
Shan Luo, Richard D. Bardgett, Bernhard Schmid, David Johnson, Kenny Png, Urs Schaffner, Huakun Zhou, Buqing Yao, Xiangyang Hou, Nicholas J. Ostle
Summary: Studies have shown that historical context can alter plant diversity-community productivity relationships through plant species interactions. Understanding the importance of historical context is crucial for comprehending the long-term impacts of anthropogenic disturbance on ecosystem functioning.
JOURNAL OF ECOLOGY
(2022)
Article
Agronomy
Luiz F. Pires, Talita R. Ferreira, Fabio A. M. Cassaro, Hannah Cooper, Sacha J. Mooney
Summary: In this study, the physical and morphological properties of soils under long-term no tillage (NT) and minimum-tillage (MT) were compared to adjacent secondary forest (SF) soils. The results showed that conservation agriculture can reverse structural damage associated with conventional intensive agriculture, but there are still important differences in pore network complexity and connectivity.
Article
Ecology
Laura Reinelt, Jeanette Whitaker, Elena Kazakou, Laurent Bonnal, Denis Bastianelli, James M. Bullock, Nicholas J. Ostle
Summary: Drought can cause changes in plant root and shoot traits, which, in turn, affect the decomposability of litter. However, the specific effects of drought-induced plasticity on litter decomposability are not well understood. In this study, we examined the morphological and chemical traits of three plant species subjected to a 5-week moderate drought treatment and conducted a decomposition assay to measure litter mass loss over 16 weeks. Our results reveal that drought alters plant traits and can increase or decrease litter decomposability, indicating that vegetation feedbacks to climate change can be influenced by drought-induced trait changes.
FUNCTIONAL ECOLOGY
(2023)
Correction
Multidisciplinary Sciences
Yannick Garcin, Enno Schefuss, Greta C. Dargie, Donna Hawthorne, Ian T. Lawson, David Sebag, George E. Biddulph, Bart Crezee, Yannick E. Bocko, Suspense A. Ifo, Y. Emmanuel Mampouya Wenina, Mackline Mbemba, Corneille E. N. Ewango, Ovide Emba, Pierre Bola, Joseph Kanyama Tabu, Genevieve Tyrrell, Dylan M. Young, Ghislain Gassier, Nicholas T. Girkin, Christopher H. Vane, Thierry Adatte, Andy J. Baird, Arnoud Boom, Pauline Gulliver, Paul J. Morris, Susan E. Page, Sofie Sjogersten, Simon L. Lewis
Article
Soil Science
Shan Luo, G. Kenny Png, Nicholas J. Ostle, Huakun Zhou, Xiangyang Hou, Chunling Luo, John N. Quinton, Urs Schaffner, Christopher Sweeney, Dangjun Wang, Jihua Wu, Yuwei Wu, Richard D. Bardgett
Summary: Grassland degradation simplifies soil fungal communities, reducing ecosystem multifunctionality, and restoration efforts are not effective in recovering these belowground properties.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Chloe Brown, Doreen S. Boyd, Sofie Sjogersten, Christopher H. Vane
Summary: In this paper, organic geochemical analysis and remote sensing data were used to predict peat conditions and carbon storage in the North Selangor Peat Swamp forest, Malaysia. The study found that degraded peatland areas can be identified using remotely sensed data, which can be used to support conservation and restoration efforts.
Article
Environmental Sciences
Adnane Beniaich, Wilfred Otten, Ho-Chul Shin, Hannah Cooper, Jane Rickson, Aziz Soulaimani, Mohamed El Gharous
Summary: Soil hydraulic properties are important for optimizing water management for crops. Pedotransfer functions (PTFs) use basic soil properties to predict soil variables. In this study, iSDAsoil data and field data were compared in four regions in Morocco. The data was used to develop and evaluate PTFs for estimating soil moisture content at saturation, field capacity, and permanent wilting point. The best performing PTFs were developed by Dijkerman using linear regression, and multiple linear regression showed good performance based on clay, silt, and organic matter. Random forest outperformed other machine learning algorithms. PTFs offer a cost-effective and easy technique for estimating soil hydraulic properties and improving water management efficiency for farmers.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Editorial Material
Geosciences, Multidisciplinary
Benjamin L. Turner
Summary: A 3-year field experiment indicates that plant responses to elevated CO2 in phosphorus-limited grasslands rely on the biogeochemical interplay between soil microbes and plants.
Article
Biology
Ryota Aoyagi, Richard Condit, Benjamin L. Turner
Summary: Hierarchical Bayesian analysis was used to test variations in growth and mortality of 40,000 individual trees from over 400 species in tropical forests of Panama. Contrary to theoretical expectations, tree species adapted to low-phosphorus soils showed faster growth rates and lower mortality rates than those adapted to high-phosphorus soils.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Article
Environmental Sciences
Alison M. Williams-Clayson, Christopher H. Vane, Matthew D. Jones, Russell Thomas, Alexander W. Kim, Christopher Taylor, Darren J. Beriro
Summary: This study investigated soils sampled from 10 former manufactured gas plants in the UK using GC-MS/MS and RE. The distributions and concentrations of PAHs and the parameters of RE were analyzed to establish relationships between soils and the MGP processes history. The results showed that PAHs distributions and RE parameters can assist with differentiating between MGP processes, and RE parameters have the potential to estimate the reactivity and release of PAHs from soils.
ENVIRONMENTAL POLLUTION
(2023)
Meeting Abstract
Agriculture, Dairy & Animal Science
Benjamin L. Turner
JOURNAL OF ANIMAL SCIENCE
(2022)