Article
Plant Sciences
Maaya Igarashi, Yan Yi, Katsuya Yano
Summary: The study found that the increase in plant biomass under elevated CO2 concentration is lower than expected, mainly due to induced nitrogen deficiency. While some hypotheses were not confirmed, the results showed that higher CO2 concentration significantly enhances water-use efficiency in plants, and accelerated growth rate increases the demand for nitrogen.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Horticulture
Guiyu Wei, Manyi Zhang, Bingjing Cui, Zhenhua Wei, Fulai Liu
Summary: This study found that increasing nitrogen fertilization and reducing irrigation regimes can alleviate the negative impact of elevated CO2 on tomato fruit quality. Additionally, combining ammonium nitrogen treatment with partial rootzone drying irrigation can further improve fruit mineral nutrition and flavor.
SCIENTIA HORTICULTURAE
(2024)
Article
Soil Science
Wenting Jiang, Haikuo Zhang, Yunying Fang, Youchao Chen, Shoujia Zhuo, Zhihao Chen, Chenfei Liang, Lukas Van Zwieten, Shenglei Fu, Yongfu Li, Bing Yu, Yanjiang Cai, Scott X. Chang
Summary: Deposition of atmospheric nitrogen increases soil nitrous oxide emissions, and the commonly used understory nitrogen application methods underestimate the actual impacts due to overlooking nitrogen interception by forest canopies. Our study compared different nitrogen deposition simulation approaches and forms of nitrogen in a Moso bamboo forest, and found that the cumulative nitrous oxide emissions were higher in understory nitrogen application treatments compared to canopy treatments, with greater emissions under inorganic nitrogen application. Considering canopy processes is important for future studies on nitrogen deposition and soil nitrous oxide emissions.
Article
Environmental Sciences
Risto Vesala, Heikki Kiheri, Erik A. Hobbie, Netty van Dijk, Nancy Dise, Tuula Larmola
Summary: Continuous nitrogen addition over 14 years in ombrotrophic peatlands affected ericoid mycorrhizal (ERM) shrubs at Whim Bog in Scotland. High doses of ammonium alleviated nitrogen deficiency in Calluna vulgaris and Erica tetralix, while low doses of ammonium and nitrate improved plant phosphorus nutrition. Root acid phosphatase activities positively correlated with foliar nitrogen to phosphorus ratios, suggesting enhanced phosphorus uptake due to improved nitrogen nutrition.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Horticulture
Lilian Schmidt, Jana Zinkernagel
Summary: The study reveals that under elevated atmospheric CO2 levels, regardless of nitrogen forms, photosynthetic CO2 assimilation increases, without affecting nitrate assimilation or plant biomass. Extra photosynthates may be used to increase plant dry mass rather than antioxidative compounds. Fertilization with ammonium-dominated N has little benefit for crop yield and nutritional quality in arugula production.
Article
Forestry
Rui Zhang, Zhongyi Yang, Yunpeng Wang, Jiayi Wang, Yi Wang, Zhichun Zhou
Summary: Both NH4+ and NO3- can greatly influence plant growth and biomass, and their deposition have different effects on root development and activity in subtropical tree species. Pine tree species exhibited higher root absorption efficiency, while nitrogen deposition was found to be more beneficial to root growth of broadleaved tree species.
Article
Environmental Sciences
Michael R. McHale, Amy S. Ludtke, Gregory A. Wetherbee, Douglas A. Burns, Mark A. Nilles, Jason S. Finkelstein
Summary: This study reports trends in wet-precipitation chemistry in response to emissions reductions implemented as part of the Clean Air Act Amendments. The concentrations of sulfate and nitrate showed significant decreasing trends, while ammonium concentrations increased. The trends for sulfate and nitrate were strongest in the beginning of the study period and became weaker in later periods.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Environmental Sciences
Jingjie Ma, Peifang Wang, Bin Hu, Xun Wang, Jin Qian
Summary: This study found that the simultaneous increase in ammonium and CO2 provides cyanobacteria with greater advantages and may exacerbate cyanobacterial blooms in aquatic ecosystems. Under light conditions of 80 mu mol photons/m(2)/s, elevated CO2 can reduce intracellular reactive oxygen species, leading to increased cell density and chlorophyll a content. However, under light conditions of 200 mu mol photons/m(2)/s, elevated CO2 concentration affects NO3--grown cyanobacteria, suppressing their growth.
Article
Biochemistry & Molecular Biology
Ivan Jauregui, Mikel Rivero-Marcos, Iker Aranjuelo, Pedro M. Aparicio-Tejo, Berta Lasa, Idoia Ariz
Summary: In this study, the physiological and metabolic analysis of ammonium (NH4+)-tolerant pea plants under different NH4+ and CO2 concentrations was conducted. The results showed that the photosynthetic efficiency of the NH4+ tolerant pea plants remained intact under elevated CO2 levels, thanks to the plants' ability to maintain foliar nitrogen status and higher carbon requirements for NH4+ assimilation.
Article
Plant Sciences
Konrad Kraemer, Gabi Kepp, Judith Brock, Simon Stutz, Arnd G. Heyer
Summary: Plants exposed to elevated CO2 initially show increased photosynthetic activity, but this declines over time. The decline is associated with an increase in the carbon-to-nitrogen ratio of the biomass. The study demonstrates that reduced photorespiration at high CO2 leads to decreased assimilation of nitrate, which shifts the C/N balance.
PHYSIOLOGIA PLANTARUM
(2022)
Article
Environmental Sciences
Ling-Zhi Zhang, Wei He, Fu-Yi Huang, Wei He, Pengpeng Zhou, Cuibai Chen, Christopher Rensing, Kristian Koefoed Brandt, Jiangtao He, Fei Liu, Yi Zhao, Huaming Guo
Summary: This study investigated the microbial community, nitrogen metabolic attributes, and their responses to NO3--N pollution in suburban groundwater in Beijing. The results showed that groundwater with higher NO3--N concentrations had lower microbial richness and abundance of N metabolic genes, and denitrification was the dominant N cycling process. The study also found significant associations between NO3--N, NH4+-N, microbial taxonomy, and N functional attributes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Xiaofeng Zhang, Hui Liu, Xianzhen Luo, Meijuan Xiao, Ping Xiang, Minghao Chen, Xiaoqian Zhang, Lingling Zhang, Qing Ye, Dazhi Wen
Summary: This study investigated the effects of cadmium (Cd) contamination, elevated atmospheric CO2 concentration, and nitrogen (N) deposition on eco-physiological traits of two subtropical tree species. The results showed that A. auriculiformis was Cd-tolerant, while S. hainanense was able to offset the detrimental effects of Cd contamination through elevated CO2 concentration and/or N addition. However, this offsetting effect came at the expense of reduced hydraulics safety in S. hainanense.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Plant Sciences
Shenglan Li, Xizi Wang, Xiaojuan Liu, Andrew J. Thompson, Fulai Liu
Summary: This study explores the mechanisms by which tomato plants respond to osmotic stress and finds that elevated CO2 concentration and high endogenous ABA level can enhance the plant's resistance to osmotic stress through osmotic and hydraulic adjustments. Elevated CO2 improves water status, while high endogenous ABA compensates for the decreased root hydraulic conductance by increasing specific leaf area and root branching intensity.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2022)
Article
Plant Sciences
Priyanka Kumari, Loitongbam Lorinda Devi, Amresh Kumar, Ashutosh Pandey, Subodh Kumar Sinha, Amar Pal Singh
Summary: Nitrogen uptake and assimilation are crucial for plant growth and productivity. This study evaluated eleven rice genotypes under sufficient and low nitrogen conditions, and identified a genotype associated with enhanced nitrogen levels and assimilation. The findings provide important insights for breeding nitrogen use-efficient rice varieties.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2022)
Article
Agronomy
Linyuan Shi, Jiuwen Liang, Ruishan Wang, Xiufu Wan, Binbin Yan, Yan Zhang, Meilan Chen, Changzheng Liu, Qi Li, Sheng Wang, Lanping Guo
Summary: Nitrogen strongly affects plant growth and metabolism. This study investigated the effects of different concentrations of NH4+ on the growth of Arnebia euchroma hairy roots (AEHR) and the accumulation of shikonin in them. The results showed that low concentrations of NH4+ promoted growth and shikonin synthesis, while high concentrations inhibited growth and shikonin accumulation in AEHR.
Review
Environmental Sciences
Attila Csaba Kondor, Anna Viktoria Vancsik, Laszlo Bauer, Lili Szabo, Zoltan Szalai, Gergely Jakab, Gabor Maasz, Marta Pedrosa, Maria Jose Sampaio, Ana Rita Lado Ribeiro
Summary: This review provides a critical overview of research on the removal efficiency of priority substances and compounds of emerging concern through bank filtration, discussing influencing factors and future challenges. The findings show that the efficiency of bank filtration is influenced by multiple factors and varies for different substances.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Xinyan Wang, Shuai Zhang, Huihui Yan, Zhao Ma, Yunshan Zhang, Haining Luo, Xueli Yang
Summary: This study investigated the association between ambient PM2.5, O3 pollution, and ovarian reserve in reproductive-aged Chinese women. The results showed that increased exposure to PM2.5 and O3 was associated with decreased AMH levels, indicating reduced ovarian reserve. Notably, the effects of O3 exposure on ovarian reserve were different from those of PM2.5 exposure.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Tingting Ma, Yanjuan Ding, Fengjiao Xu, Chen Zhang, Min Zhou, Ya Tang, Yanrong Chen, Yating Wen, Rufei Chen, Bin Tang, Shigui Wang
Summary: The dragonfly species Orthetrum albistylum can accumulate heavy metals, and its heat shock protein genes have the potential to serve as biomarkers for monitoring environmental pollutants.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Naoto Ishiwaka, Koya Hashimoto, Masayoshi K. Hiraiwa, Francisco Sanchez-Bayo, Taku Kadoya, Daisuke Hayasaka
Summary: Systemic insecticides and rising temperatures have combined effects on the abundance of Odonata nymphs in paddy fields. The standalone effect of insecticide exposure decreased the Odonata community, while nymphs decreased synergistically with temperature rise in paddy water. However, the impacts of each stressor alone varied among species.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Marco Vecchiato, Carlo Barbante, Elena Barbaro, Francois Burgay, Warren R. L. Cairns, Alice Callegaro, David Cappelletti, Federico Dallo, Marianna D'Amico, Matteo Feltracco, Jean-Charles Gallet, Andrea Gambaro, Catherine Larose, Niccolo Maffezzoli, Mauro Mazzola, Ivan Sartorato, Federico Scoto, Clara Turetta, Massimiliano Varde, Zhiyong Xie, Andrea Spolaor
Summary: The Arctic region is facing contamination from long-range pollution and local human activities. Polycyclic Aromatic Hydrocarbons (PAHs) are used as environmental indicators for emission, transport, and deposition processes. Research conducted in the Arctic surface snow in Ny-Ålesund, Svalbard from October 2018 to May 2019 shows that long-range inputs of PAHs mainly occur in winter, while the most abundant analyte retene exhibits opposite seasonal trends.
ENVIRONMENTAL POLLUTION
(2024)
Review
Environmental Sciences
Maoshui Zhuo, Zhijie Chen, Xiaoqing Liu, Wei Wei, Yansong Shen, Bing-Jie Ni
Summary: This paper discusses the application of three catalytic processes (photocatalysis, electrocatalysis, and biocatalysis) in the management of microplastic pollution, and introduces the efficiency and catalytic mechanisms of different catalysts. It also proposes the development prospects for sustainable management of microplastic pollution.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Shiyu Chen, Zhenzhen Shi, Qiang Zhang
Summary: In this study, a human physiologically based pharmacokinetic (PBPK) model of diethyl phthalate (DEP) was developed to assess its toxicity. The model considers the distribution and metabolism of DEP and its active metabolite monoethyl phthalate (MEP) in different tissue compartments. Sensitivity analysis and Bayesian Markov chain Monte Carlo (MCMC) simulations were performed to evaluate the uncertainty and variability of the model parameters. The results suggest that dermal absorption is an important route of exposure to DEP in the environment.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Bangguo Wang, Lijing Wang, Wenxi Cen, Tao Lyu, Peter Jarvis, Yang Zhang, Yuanxun Zhang, Yinghui Han, Lei Wang, Gang Pan, Kaili Zhang, Wei Fan
Summary: This study investigates the feasibility and mechanisms of a chemical-free nanobubble-based AOP for treating organic micropollutants in water. The results show that the oxygen nanobubble AOP has a significantly higher removal efficiency compared to air and nitrogen nanobubbles. The treatment performance is not affected by pH and the presence of ions. Higher initial concentrations of the micropollutant lead to slower treatment processes, but similar removal performance is achieved in the end. The presence of organic matter reduces the removal rate of the micropollutant. The results have practical feasibility for water and wastewater treatment.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Yingmei Huang, Jicai Yi, Yao Huang, Songxiong Zhong, Bin Zhao, Jing Zhou, Yuxuan Wang, Yiwen Zhu, Yanhong Du, Fangbai Li
Summary: This study investigates the impact of biochar on methylmercury (MeHg) accumulation in rice. The results show that biochar reduces MeHg levels in paddy soils by decreasing bioavailable Hg and microbial Hg methylation. Additionally, biochar decreases the uptake and translocation of MeHg in rice plants, resulting in a reduction of MeHg accumulation in rice grains.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Nengde Zeng, Fei Huang, Jiani Du, Chenghao Huang, Qian Yang, Xinhua Zhan, Baoshan Xing
Summary: This study investigates the protein targets and protein-ligand interactions related to PAH contamination in crop xylem sap using computational tools. The results show that phenanthrene has a more pronounced effect on the xylem sap proteins of maize and wheat, with maize DEPs associated with lipid biosynthesis and wheat DEPs exhibiting an increase in ABC transporters. This study provides insights into the regulation and movement of PAHs within plant xylem.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Xinwei Chen, Hao Ma, Run Wang, Man Wang, Binbin Zhu, Yanqing Cong, Xiayue Zhu, Guoqin Wang, Yi Zhang
Summary: Co3O4/TiO2-NRs electrodes with excellent photoresponse were prepared via plasma-assisted modification of Co3O4 on TiO2. The combination of Co3O4 and TiO2 improved the light utilization efficiency and showed potential for degradation of pollutants.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Wenjing Ji, Liying Song, Jing Wang, Hongqing Song
Summary: This study conducted a life-cycle assessment to examine the correlation between natural gas consumption and carbon emissions in different end uses in China. The results showed that both natural gas consumption and life-cycle carbon emissions have been increasing since 2017. Significant variations in NG life-cycle carbon emissions were found across different provinces and sectors, highlighting the need for targeted efforts to reduce carbon emissions.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Youyi Chen, Boxuan Zhang, Pojun Zhang, Guogui Shi, Hao Liang, Wu Cai, Jingyu Gao, Sumin Zhuang, Kaiyin Luo, Jiaqi Zhu, Chaoxiang Chen, Kunyu Ma, Jinrong Chen, Chun Hu, Xueci Xing
Summary: The synergistic effects of trace sulfadiazine and cast-iron corrosion scales on the formation of disinfection by-products in drinking water distribution systems were investigated. The presence of magnetite resulted in increased concentrations of DBPs due to the higher microbial activity and enhanced microbial extracellular electron transport pathway. The study highlights the importance of considering trace antibiotics pollution and corrosion scales in water sources for DBP control.
ENVIRONMENTAL POLLUTION
(2024)
Review
Environmental Sciences
Bishwa Raj Pokharel, Vijay Sheri, Manoj Kumar, Zhiyong Zhang, Baohong Zhang
Summary: This review summarizes the interactions, uptake, and transport of aluminum nanoparticles (Al-NPs) in plants, highlighting their negative effects on plant growth and development, as well as their potential to alter plant defense systems and gene expression.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Yonglu Wang, Fengsong Zhang, Xiaoyong Liao, Xiao Yang, Guixiang Zhang, Liyun Zhang, Chaojun Wei, Pengge Shi, Jiongxin Wen, Xiaorong Ju, Can Xu, Yang Liu, Ying Lan
Summary: This study aims to explore the effects of thiencarbazone-methyl center dot isoxaflutole on soil microflora and the potential mitigation mechanisms to bacterial communities. It was found that increasing the application of thiencarbazone-methyl center dot isoxaflutole resulted in increased stress on soil bacterial community structure and diversity. Increasing soil pH was recognized as a key factor in improving the diversity and structure of soil microflora. Supplemental use of nitrapyrin or modified attapulgite can increase soil pH and improve bacterial diversity.
ENVIRONMENTAL POLLUTION
(2024)