Article
Soil Science
Petr Capek, Michal Choma, Karolina Tahovska, Jiri Kana, Jiri Kopacek, Hana Santruckova
Summary: Our study found that the capability of microbial community to reduce its demand for external nutrients is responsible for the difference between the predictions and observations. The active part of microbial community instantly recycled N from decaying part of microbial community and very likely utilized internal P sources (i.e. polyphosphates). The results suggest that N recycling from dead microbial biomass and the internal microbial P sources warrant further investigation.
Article
Environmental Sciences
Mario Fontana, Luca Bragazza, Thomas Guillaume, Mathieu Santonja, Alexandre Buttler, Said Elfouki, Sokrat Sinaj
Summary: The study suggests that using calcium phosphite as a phosphorus fertilizer may have varying effects on different soil types and plant species, particularly on the growth and soil P pools of green manure crops. In sandy soil, the addition of calcium phosphite increased available phosphorus levels, while in clay soil it promoted the formation of higher PNaHCO3. Further research is needed to better understand soil microbial responses and quantify the agronomical efficiency of phosphorus under calcium phosphite fertilization in subsequent crops.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Environmental
Xuewei Liu, You Zhang, Mingjin Cheng, Songyan Jiang, Zengwei Yuan
Summary: Recycling phosphorus from waste is an effective way to alleviate resource and environmental pollution. By constructing a phosphorus waste feedback model and predicting waste generation and recycling under different management scenarios, it is found that implementing sustainable measures can significantly reduce phosphorus loss and phosphate consumption.
RESOURCES CONSERVATION AND RECYCLING
(2023)
Article
Geosciences, Multidisciplinary
Timothy Kusky, Yang Huang, Lu Wang, Paul T. Robinson, Richard Wirth, Ali Polat, Hu Wei
Summary: This article documents the textures and inclusions of an Archean podiform chromitite in China, revealing an ancient CHONSP cycle during Earth's transition period, and highlighting the importance of plate tectonics and subduction in sustaining life.
EARTH-SCIENCE REVIEWS
(2022)
Review
Astronomy & Astrophysics
Ralf Halama, Gray Bebout
Summary: Understanding the Earth's geological nitrogen and carbon cycles is crucial for assessing their distribution between different Earth reservoirs. Variations in the fluxes of nitrogen and carbon through geological time have influenced Earth's evolution and atmosphere composition. Subduction zones play a key role in the transfer of nitrogen and carbon, with important implications for the Earth's mantle and atmosphere dynamics.
SPACE SCIENCE REVIEWS
(2021)
Article
Plant Sciences
Yaowen Xu, Xiaogai Ge, Benzhi Zhou, Lei Lei, Wenfa Xiao
Summary: Phosphorus is a limiting nutrient for plant growth in subtropical regions, but our understanding of how soil phosphorus responds to changes in stand age is limited. In this study, we measured the concentrations of different bioavailable phosphorus fractions in the rhizosphere soil of Pinus massoniana stands of different ages. The results showed that total phosphorus concentration and N:P ratio in the rhizosphere soil initially decreased, then increased with increasing stand age. Soluble phosphorus concentration initially decreased, then increased, while exchangeable and ligand phosphorus initially decreased, then stabilized. Hydrolyzable phosphorus increased initially, then decreased. The results also indicated that ligand phosphorus and soluble phosphorus were the major factors influencing total phosphorus concentration.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Green & Sustainable Science & Technology
Natalie Mayer, Martin Kaltschmitt
Summary: Phosphorus is an important element for life, but it is also a scarce mineral resource. Sustainable phosphorus management is crucial to ensure long-term availability of phosphorus and avoid negative environmental impacts. In Germany, agriculture is the main sector with high phosphorus demand. Improved fertilization procedures and soil conservation can significantly reduce phosphorus run-off from agricultural land into water bodies. Treating manure and animal fodder can also enhance the utilization efficiency of phosphorus and reduce phosphorus content.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Tao Hai, Walid El-Shafai, Riyadh AL-Obaidi, Bhupendra Singh Chauhan, Teeba Ismail Kh, Nasser M. Abd El-Salam, Babak Farhang
Summary: High-temperature Solid Oxide Fuel Cell (SOFC) technology has great potential, but faces challenges such as high operating costs and difficulty in integration with other components. This study proposes a novel system that uses carbon capture and utilization, flue gas condensation, and Molten Carbonate Fuel Cells (MCFC) to address these challenges. The system also includes a gasifier and vanadium chloride unit for syngas and clean hydrogen production. The findings show that the proposed system is effective, financially attractive, and contributes to reducing pollutants. The overall assessment of the importance of this article: 8/10.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Review
Plant Sciences
Yang Han, Philip J. White, Lingyun Cheng
Summary: To reduce environmental losses of phosphorus, increasing phosphorus acquisition efficiency or phosphorus utilization efficiency in plants can help maintain or even enhance plant performance.
Article
Geochemistry & Geophysics
Jabrane Labidi
Summary: Plate tectonics is considered a significant factor in volatile redistribution on Earth, with nitrogen in the mantle primarily derived from surface sources. The study indicates that nitrogen isotope ratios and N-2/He-3 remain constant in most basalts, suggesting that the nitrogen subduction hypothesis may explain part of the nitrogen isotope data on basalts. The data also show that the impact of nitrogen recycling on mantle nitrogen may be more limited than previously believed.
Article
Environmental Studies
Juhua Ding, Qiuan Zhu, Hanwei Li, Xiaolu Zhou, Weiguo Liu, Changhui Peng
Summary: Phosphorus is a key nutrient in ecosystems and its cycle has been integrated into a new model to investigate its interaction with carbon and nitrogen. The model was calibrated and validated globally, showing good performance in simulating gross primary productivity, total biomass, and soil organic carbon. The study represents a promising step towards improving the quantification of land carbon cycle and reducing uncertainty.
Article
Environmental Sciences
Claude-Alla Joseph, Lotfi Khiari, Jacques Gallichand, Ned Beecher
Summary: The study found that using ash from municipal sludge incineration as phosphorus fertilizer can enhance ryegrass P uptake, with effectiveness varying depending on the origin of the sludge and P solubility. In clay soil, SIA had greater P effectiveness than RP, while in sandy loam soil, they were similar. The oxalate extraction method was shown to be a better predictor of SIA P availability compared to the commonly used NAC method.
Article
Environmental Sciences
Qing Shao, Ying Zhang, Zhe Liu, Lizhi Long, Zizheng Liu, Yiqun Chen, Xin-Ming Hu, Mingming Lu, Li-Zhi Huang
Summary: This study demonstrates an effective method to recover nitrogen and phosphorus from real wastewater treatment plant effluent using sewage sludge and fly ash-derived ceramsite, which can be modified and applied as an ecofriendly fertilizer to promote plant growth. The recycling of N and P from wastewater through this sustainable solution helps minimize the environmental impact of wastewater and solid waste disposal.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Mario Fontana, Thomas Guillaume, Luca Bragazza, Said Elfouki, Mathieu Santonja, Alexandre Buttler, Renato Gerdol, Lisa Brancaleoni, Sokrat Sinaj
Summary: Recycling phosphorus by using calcium phosphite waste as P fertilizer during green manure cropping proved to be effective in providing sufficient P for subsequent crops without affecting maize productivity, while also enhancing organic carbon mineralization in soils.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Geosciences, Multidisciplinary
Liang Yuan, Gerd Steinle-Neumann
Summary: Using density functional theory, this study predicts that boron behavior changes from lithophile to siderophile with increasing pressure and temperature. The results suggest that Earth's core may hold a significant amount of boron and that the source of boron in deep diamonds and ocean islands basalts may not be solely attributed to crustal subduction and recycling.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Graham A. Shields, Robin A. Strachan, Susannah M. Porter, Galen P. Halverson, Francis A. Macdonald, Kenneth A. Plumb, Carlos J. de Alvarenga, Dhiraj M. Banerjee, Andrey Bekker, Wouter Bleeker, Alexander Brasier, Partha P. Chakraborty, Alan S. Collins, Kent Condie, Kaushik Das, David A. D. Evans, Richard Ernst, Anthony E. Fallick, Hartwig Frimmel, Reinhardt Fuck, Paul F. Hoffman, Balz S. Kamber, Anton B. Kuznetsov, Ross N. Mitchell, Daniel G. Poire, Simon W. Poulton, Robert Riding, Mukund Sharma, Craig Storey, Eva Stueeken, Rosalie Tostevin, Elizabeth Turner, Shuhai Xiao, Shuanhong Zhang, Ying Zhou, Maoyan Zhu
Summary: This article reviews the processes that led to the current geological timescale and proposes revisions for subdividing time before 720 million years ago. The assessment of Precambrian rock records suggests that using rock-based concepts for subdivision may require only modest deviation from current chronometric boundaries.
JOURNAL OF THE GEOLOGICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Eva E. Stueken, Kalle Kirsimae, Aivo Lepland, Anthony R. Prave
Summary: Hydrothermal vents are important in the search for life on other planets due to their ability to generate catalytic surfaces and organic compounds. This study investigates the role of hydrothermal circulation in maintaining a biosphere beyond its origin by analyzing organic carbon, nitrogen abundances, and isotopic ratios from ancient rocks in Russia. The results suggest that hydrothermal activity in ancient marine basins could provide a high flux of recycled nitrogen, supporting a large biosphere on anoxic worlds.
Article
Geochemistry & Geophysics
Eva E. Stueken, Kristoffer Szilas, Vincent J. van Hinsberg
Summary: A newly discovered hydrothermal graphite deposit in Greenland displays low nitrogen concentrations, indicating an abiotic origin. However, high nitrogen concentrations found in graphitic metapelites suggest a possible link to biomass breakdown. Potassic silicates associated with graphite can thus serve as an indirect biosignature.
Article
Geosciences, Multidisciplinary
Toby J. Boocock, Sami Mikhail, Adrian J. Boyce, Julie Prytulak, Paul S. Savage, Eva E. Stueken
Summary: Geochemical analyses of igneous rocks from the Hekla volcanic system in Iceland suggest that the formation of continental crust has trapped significant amounts of magmatic nitrogen over Earth's history. Identifying the sources of crustal nitrogen is important for accurately reconstructing Earth's atmospheric pressure and habitability over geologic timescales. The findings indicate that nitrogen in the continental crust is of magmatic origin and suggest that the degassing of nitrogen from Earth's interior to the atmosphere may have been previously overestimated.
Article
Geosciences, Multidisciplinary
Patrick Barth, Eva E. Stueken, Christiane Helling, Lukas Rossmanith, Yuqian Peng, Wendell Walters, Mark Claire
Summary: Based on the results of spark discharge experiments, lightning-driven nitrogen fixation may have played a significant role in the development of Earth's earliest ecosystems, similar to modern times.
Article
Multidisciplinary Sciences
Huyue Song, Zhihui An, Qin Ye, Eva E. Stueken, Jing Li, Jun Hu, Thomas J. Algeo, Li Tian, Daoliang Chu, Haijun Song, Shuhai Xiao, Jinnan Tong
Summary: Based on geochemical and paleontological data, this study reveals that habitable open-oceans extended to mid-latitude coastal oceans during the waning stage of the Marinoan snowball Earth, providing refugia for benthic photosynthetic eukaryotes.
NATURE COMMUNICATIONS
(2023)
Editorial Material
Multidisciplinary Sciences
Ariel D. Anbar, Roger Buick, Gwyneth W. Gordon, Aleisha C. Johnson, Brian Kendall, Timothy W. Lyons, Chadlin M. Ostrander, Noah J. Planavsky, Christopher T. Reinhard, Eva E. Stueken
Summary: Slotznick et al. argue that the analysis of paleoredox proxies in the Mount McRae Shale, Western Australia, was misunderstood, suggesting that environmental oxygen levels were consistently negligible before the GOE. However, we find these arguments to be logically flawed and factually incomplete.
Article
Astronomy & Astrophysics
Christopher J. Tino, Eva E. Stueeken, Gernot Arp, Michael Ernst Boettcher, Steven M. Bates, Timothy W. Lyons
Summary: Discrepancies have emerged in the application of sulfur stable isotope ratios as a biosignature in impact crater paleolakes. The first in situ δS-34 data from Mars at Gale crater show a wide range that is attributed to abiotic mechanisms, while biogeochemical studies on Earth interpret δS-34 fractionations >21‰ as indicative of a biological origin. Analyses on lithologies from the Nordlinger Ries impact crater suggest that differences in δS-34 could be caused by various factors. Assertions of biogenicity based on δS-34 variations >21‰ at the Miocene Ries impact crater are tenuous without comprehensive checks and consideration of alternative hypotheses.
Article
Geochemistry & Geophysics
Huyue Song, Teng Xing, Eva E. Stueken, Yong Du, Yuanyuan Zhu, Xiaowan Tao, Qian Ni, Haijun Song
Summary: By analyzing sedimentary rock samples from different time periods, we found that δ15Nbulk is generally higher than δ15NDCN, indicating preferential loss of acid-soluble organic nitrogen with higher δ15N values during decarbonization. In anoxic environments, δ15NDCN is generally higher than δ15Nkerogen, which may be linked to ammonium accumulation. In some cases, δ15Nkerogen is greater than δ15NDCN, which may reflect preferential release of 14NH4+ from organic matter or biological production of isotopically light NH4+.
Editorial Material
Biochemistry & Molecular Biology
Michael A. Kipp
Summary: New research estimates that life on Earth has cycled almost 100 times the amount of carbon in the entire carbon reservoir of the planet. This highlights the significant global impact of life and provides a benchmark for studying habitable planets.
Article
Geochemistry & Geophysics
Toby J. Boocock, Eva E. Stueken, Grant M. Bybee, Ramona Konig, Adrian J. Boyce, Julie Prytulak, Iris Buisman, Sami Mikhail
Summary: This study investigates the geochemical characteristics of nitrogen in the calc-alkaline pluton at Loch Doon, SW Scotland, and finds that the whole-rock likely inherited its N contents and δ^15N signature from the initial source composition and shows homogeneity at a pluton scale. At a mineral scale, it is found that N preferentially partitions into feldspars over mica in this system, and a large and near constant equilibrium isotope fractionation factor exists between biotite and both feldspars.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2023)
Article
Multidisciplinary Sciences
Katherine Mateos, Garrett Chappell, Aya Klos, Bryan Le, Joanne Boden, Eva Stueken, Rika Anderson
Summary: The biogeochemical sulfur cycle plays a central role in microbial metabolisms, Earth's redox state regulation, and climate effects. Geochemical reconstructions of the ancient sulfur cycle are complicated due to ambiguous isotopic signals. By using phylogenetic reconciliation, we determined the timing of ancient sulfur cycling gene events across the tree of life. Our findings suggest the early emergence of sulfide oxidation metabolisms in the Archean, while thiosulfate-based metabolisms emerged after the Great Oxidation Event. These results highlight the contribution of genomic innovation to the observed geochemical signatures and reveal the existence of organic sulfur cycling since the Mid-Proterozoic, with implications for climate regulation and atmospheric biosignatures. Overall, our study provides insights into the co-evolution of biological sulfur cycle and early Earth's redox state.
Article
Chemistry, Multidisciplinary
Eva E. Stueken, Sebastian Viehmann, Simon V. Hohl
Summary: This study investigates the reliability of proxies for marine and nonmarine environments by analyzing sulfur and nitrogen isotopes and sulfur/carbon ratios in the Miocene Oberpullendorf Basin. The results show that the residence time of isotopes in seawater affects the accuracy of proxies, with nitrogen isotopes being more sensitive than sulfur isotopes. This highlights the importance of considering residence time when using geochemical proxies.
ACS EARTH AND SPACE CHEMISTRY
(2023)
Article
Ecology
Michael A. Kipp, Eva E. Stueken, Caroline A. E. Stromberg, William H. Brightly, Victoria M. Arbour, Boglarka Erdei, Robert S. Hill, Kirk R. Johnson, Jiri Kvacek, Jennifer C. McElwain, Ian M. Miller, Miriam Slodownik, Vivi Vajda, Roger Buick
Summary: Cycads, ancient seed plants, obtain nitrogen from symbiotic cyanobacteria, but the symbiosis might have arisen after the Jurassic, explaining the decline in cycad abundance in the Cenozoic era.
NATURE ECOLOGY & EVOLUTION
(2023)
