Article
Biodiversity Conservation
Megan E. Wilcots, Katie M. Schroeder, Lang C. DeLancey, Savannah J. Kjaer, Sarah E. Hobbie, Eric W. Seabloom, Elizabeth T. Borer
Summary: Nitrogen deposition has a significant impact on carbon storage in terrestrial ecosystems, with low to intermediate rates of nitrogen addition stimulating responses in grassland ecosystems.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Forestry
Anwaar Hussain, Muhammad Atif Jamil, Kulsoom Abid, Wenbiao Duan, Lixin Chen, Changzhun Li
Summary: Organic and inorganic soil fertilizer addition or removal have significant effects on soil nutrients, and climate change and anthropogenic factors further contribute to soil nutrient deprivation and altered functioning. This study emphasizes the importance of understanding fertilizer modification and its consequences for sustaining forest ecosystems.
Article
Forestry
Chunju Cai, Zhihan Yang, Liang Liu, Yunsen Lai, Junjie Lei, Shaohui Fan, Xiaolu Tang
Summary: This study simulated canopy and understory N deposition and evaluated their effects on soil respiration and net ecosystem production in Moso bamboo forests, finding that the effects of canopy and understory N deposition were similar, with no significant impact on soil fluxes, including RS, RA, RH, and NEP.
Article
Forestry
Enhui Wang, Ning Yuan, Shaofeng Lv, Xiaoping Tang, Gang Wang, Linlin Wu, Yufeng Zhou, Guomo Zhou, Yongjun Shi, Lin Xu
Summary: This study examined the effects of biochar-based fertilizer treatment on soil greenhouse gas emissions in a bamboo plantation. The results showed that biochar-based fertilizer treatment reduced soil nitrous oxide emissions, while chemical fertilizer and mixed fertilizer treatments increased emissions. Additionally, biochar-based fertilizer treatment and mixed fertilizer treatment increased soil methane uptake, while chemical fertilizer treatment had no significant effect. The study also found that different treatments affected greenhouse gas emissions by changing soil carbon and nitrogen pools.
Article
Agronomy
Muqier Hasi, Xueyao Zhang, Guoxiang Niu, Yinliu Wang, Qianqian Geng, Quan Quan, Shiping Chen, Xingguo Han, Jianhui Huang
Summary: In the semiarid steppe of Erguna, Inner Mongolia, increasing nitrogen input can significantly enhance ecosystem C exchange, but only when soil moisture exceeds a certain threshold. In addition to considering the interactions of water, temperature, and nitrogen, their synergistic effects also need to be taken into account. During the growing seasons, the number of days with soil moisture content higher than 15% accounted for only about one third.
AGRICULTURAL AND FOREST METEOROLOGY
(2021)
Article
Geosciences, Multidisciplinary
Asko Noormets, Rosvel Bracho, Eric Ward, John Seiler, Brian Strahm, Wen Lin, Kristin McElligott, Jean-Christophe Domec, Carlos Gonzalez-Benecke, Eric J. Jokela, Daniel Markewitz, Cassandra Meek, Guofang Miao, Steve G. McNulty, John S. King, Lisa Samuelson, Ge Sun, Robert Teskey, Jason Vogel, Rodney Will, Jinyan Yang, Timothy A. Martin
Summary: In a replicated experimental study in loblolly pine plantations, it was found that soil heterotrophic CO2 efflux responds differently than net primary productivity to fertilization and drought treatments, leading to divergent responses of net primary productivity and net ecosystem production. The responses of net primary productivity and soil heterotrophic CO2 efflux to fertilization combined to increase net ecosystem production significantly under drought treatment.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Environmental Sciences
Jianhui Bai, Fengting Yang, Mingjie Xu, Huimin Wang
Summary: An empirical model of respiration and net ecosystem productivity was developed and tested in a subtropical coniferous plantation in China, with reasonable agreement between simulation and observation results. The PAR energy method was applied to capture and describe the main energy interactions in CO2 processes, leading to the development of useful empirical models for gross primary production, respiration and net ecosystem productivity.
Article
Forestry
Xiankai Lu, Qinggong Mao, Zhuohang Wang, Taiki Mori, Jiangming Mo, Fanglong Su, Zongqing Pang
Summary: Anthropogenic elevated nitrogen deposition accelerates terrestrial nitrogen cycles and influences soil carbon dynamics. Long-term high nitrogen deposition in tropical forests decreases soil carbon mineralization rates, primarily due to reduced microbial biomass and altered microbial functions caused by soil acidification and potential phosphorus limitation. Increased nitrogen deposition also leads to higher levels of soil dissolved organic carbon, with a negative relationship between microbial biomass and soil DOC, suggesting decreased microbial consumption of soil-soluble carbon pools. Overall, long-term nitrogen deposition can enhance soil carbon stability and benefit carbon sequestration in nitrogen-rich tropical forests.
Article
Engineering, Civil
Xianwei Song, Sidan Lyu, Jing Wang, Kun Sun, Yang Gao, Xuefa Wen
Summary: This study investigated the input and output fluxes of dissolved organic carbon (DOC) and their impacts in a subtropical plantation headwater catchment. The results showed that dry deposition of plant-derived DOC was higher than wet deposition from precipitation, and soil-buffered DOC fluxes were significant in the catchment. The findings highlight the importance of considering plant-derived DOC deposition in carbon sink estimations.
JOURNAL OF HYDROLOGY
(2022)
Article
Agronomy
Wenyi Xu, Bo Elberling, Per Lennart Ambus
Summary: The frequency and extent of wildfires in the Arctic have been increasing due to climate change. In this study, researchers conducted experiments in West Greenland to investigate the long-term impacts of climate warming on post-fire carbon dioxide exchange in arctic tundra ecosystems. They found that fire increased soil organic phosphorus concentrations and burned areas remained a net CO2 source five years after the fire. However, with four to five years of summer warming, the burned areas turned into a net CO2 sink.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Geosciences, Multidisciplinary
Yongwen Liu, Da Wei, Tenzintarchen, Jingxue Zhao, Xiaodong Geng, Dongxue Dai, Xu-Ri
Summary: Nitrogen deposition has played a critical role in increasing terrestrial carbon sinks, particularly in rangelands. This study investigated the effects of multilevel nitrogen addition on soil nitrogen characteristics and ecosystem carbon fluxes in an alpine pasture on the Tibetan Plateau over a 4-year period. The results showed that nitrogen addition led to increased soil inorganic nitrogen levels, primarily driven by soil NO3--N enrichment, and had varying effects on ecosystem processes, such as belowground biomass and root:shoot ratio.
Article
Plant Sciences
Ling Han, Hasbagan Ganjurjav, Guozheng Hu, Jianshuang Wu, Yulong Yan, Luobu Danjiu, Shicheng He, Wendong Xie, Jun Yan, Qingzhu Gao
Summary: The study shows that plant community assembly plays a critical role in regulating the ecosystem carbon exchange response to nitrogen deposition in alpine meadows. Nitrogen deposition can enhance the uptake and release of carbon dioxide in the ecosystem, and this effect is closely related to plant biomass and soil nitrogen content.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biodiversity Conservation
Ruoxian Fu, Xiaoniu Xu, Yuanchun Yu, Yunbin Zhang, Zhaolin Sun, Xiao Tao
Summary: Forest soil respiration is an important component of the terrestrial ecosystem carbon cycle and is influenced by factors such as atmospheric nitrogen deposition and environmental change. A study conducted in forests along an urban-rural gradient in Hefei, China, found that nitrogen deposition significantly increased soil respiration and CO2 emission flux. The effects of nitrogen deposition on soil respiration varied among forest types, with climate factors being the primary factor explaining the variation.
GLOBAL ECOLOGY AND CONSERVATION
(2021)
Article
Forestry
Yi Wang, Shirong Liu, Junwei Luan, Chen Chen, Chunju Cai, Fan Zhou, Yaping Di, Xiaomin Gao
Summary: The study found that throughfall reduction led to a decrease in soil respiration, mainly due to a decline in fine roots biomass; N addition caused microbial carbon limitation, leading to a decrease in soil respiration. The negative effect of throughfall reduction on soil respiration was exacerbated by N addition through the interaction between the two factors.
Article
Environmental Sciences
Peng Tian, Xuechao Zhao, Shengen Liu, Qinggui Wang, Wei Zhang, Peng Guo, Bahar S. Razavi, Chao Liang, Qingkui Wang
Summary: Based on our investigation of seven forest sites in eastern China, we found that N deposition has significant impacts on microbial necromass accumulation in the soil. High N deposition promotes fungal necromass accumulation while low N deposition hinders bacterial necromass accumulation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Physical
Nan Lu, Xiaoqing Yan, Hisayoshi Kobayashi, Wen Liu, Shuang Chen, Shipan Liang, Jiemei Zhang, Renhong Li
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
Article
Chemistry, Multidisciplinary
Renhong Li, Zhiqi Liu, Quang Thang Trinh, Ziqiang Miao, Shuang Chen, Kaicheng Qian, Roong Jien Wong, Shibo Xi, Yong Yan, Armando Borgna, Shipan Liang, Tong Wei, Yihu Dai, Peng Wang, Yu Tang, Xiaoqing Yan, Tej S. Choksi, Wen Liu
Summary: In the study of strong metal-support interaction (SMSI) between noble metal and 2D TiB2 supports, direct evidence of encapsulating metal nanoparticles with TiB2 overlayers to form sintering-resistant core-shell structures is reported. This newly created TiB2-based SMSI promotes catalytic activity and stability simultaneously, optimizing hydrogen production and selectivity. The theoretical and experimental results suggest that the interaction between transition metals and TiB2 overlayers plays a crucial role in creating thermally stable and catalytically active metal/support interfaces for scalable chemical and energy applications.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Kaicheng Qian, Yong Yan, Shibo Xi, Tong Wei, Yihu Dai, Xiaoqing Yan, Hisayoshi Kobayashi, Sheng Wang, Wen Liu, Renhong Li
Summary: Lattice strain modulation and vacancy engineering were found to be effective in controlling the catalytic properties of Co@CoO heterointerface catalysts. The bifunctional nature of oxygen-vacancy-rich Co-CoO interfaces was elucidated, with Co and CoO sites responsible for different catalytic reactions. The study also demonstrated that the sample reduced at 350 degrees C, Co@CoO-350, exhibited optimal catalytic activity with the highest turnover frequency for the aqueous phase reforming of formaldehyde to produce hydrogen.
Article
Chemistry, Multidisciplinary
Xiangbowen Du, Tong Wei, Mingwu Tan, Hisayoshi Kobayashi, Zhengxin Peng, Hongliang Zhu, Zhikang Jin, Junjie Song, Wen Liu, Renhong Li
Summary: This study demonstrates the efficient upgrading of formaldehyde to formate using a trimetallic carbide catalyst, without the generation of CO2 or O-2. The catalyst, Co3Fe3W6C, shows high stability and enables a significant boost in the energy efficiency of electrochemical H-2 production from water. The results provide a new strategy for enhancing the cost competitiveness of green hydrogen production and the electrochemical upgrading of organic feedstocks.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Physical
Nan Lu, Xiaoqing Yan, Hui Ling Tan, Hisayoshi Kobayashi, Xuehan Yu, Yuezhou Li, Jiemei Zhang, Zhengxin Peng, Jing Sui, Ziying Zhang, Wen Liu, Renhong Li, Benxia Li
Summary: We report an efficient process for dehydrogenating formaldehyde in alkaline solution using carbon nanotubes as catalysts with the involvement of molecular O-2 in a unique reaction mechanism. The superior catalytic performance of carbon nanotubes is attributed to their sp(2)-carbon-rich surface, hydrophilicity, and abundant surface defects, which serve as the most plausible active sites. The activation of adsorbed molecular oxygen on carbon nanotubes leading to peroxide species is found to be crucial for C-H activation and efficient hydrogen production. The cost-effective carbon-based dehydrogenation catalysts provide new opportunities for the development of novel liquid organic hydrogen carrier technologies.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Environmental
Xiangbowen Du, Mingwu Tan, Tong Wei, Hisayoshi Kobayashi, Junjie Song, Zhengxin Peng, Hongliang Zhu, Zhikang Jin, Renhong Li, Wen Liu
Summary: In this study, a bifunctional catalyst based on NiFe2O4 spinel was used to couple the hydrogen evolution reaction (HER) with selective methanol oxidation reaction (SMOR) for formate production. The results showed that the system exhibited high current density and Faradaic efficiencies, as well as excellent stability during continuous operation. Mechanistic investigation revealed the CO-free pathway for the SMOR reaction.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Huang Ming-Hao, Li Zhuo, Du Lei-Lei, Jin Zhi-Kang, Li Ren-Hong
Summary: The composite catalyst of CuPd alloy nanoparticles supported on MgO (CuPd/MgO) showed excellent catalytic performance in formaldehyde reforming for hydrogen production at room temperature in the air. It exhibited a high turnover frequency (TOF) which was significantly higher than that of Cu/MgO and Pd/MgO under the same reaction conditions. The strong metal support interaction (SMSI) between CuPd alloy nanoparticles and MgO support was responsible for the enhanced catalytic activity.
CHINESE JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Jin Zhi-Kang, Wei Tong, Xu Chao, Jia Hong-Bo, Song Jun-Jie, Zhu Hong-Liang, Du Xiang-Bo-Wen, Peng Zheng-Xin, Wang Gang, Liu Jun, Ding Hong-Yun, He Fan, Wang Min, Li Ren-Hong
Summary: In this study, nanocrystalline cobalt boride (CoB) was synthesized using a simple calcination process and applied as a catalyst for the hydrolysis of ammonia borane solution at room temperature. The CoB catalyst exhibited high performance, surpassing platinum, and maintained excellent catalytic hydrogen production after multiple tests. The study also revealed the possible catalytic active site and the mechanism of synergistic catalytic hydrogen production.
CHINESE JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Song Jun-Jie, Wei Tong, Xu Chao, Jia Hong-Bo, Liu Jun, Ding Hong-Yun, He Fan, Wang Min, Jin Zhi-Kang, Du Xiang-Bo-Wen, Wang Gang, Li Ren-Hong
Summary: TiB2 support and Co/TiB2 magnetic recyclable nano-catalyst were prepared for catalytic hydrogen evolution and synergistic degradation of pollutants. The catalyst showed excellent catalytic activity and recyclability without the need for external energy sources or additives.
CHINESE JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Hongliang Zhu, Roong Jien Wong, Xiangbowen Du, Leilei Du, Zhikang Jin, KaiCheng Qian, Junjie Song, Renhong Li, Wen Liu
Summary: Low-cost and highly active PtNi alloy nanoparticles supported on TiB2 were found to exhibit a strong metal-support interaction (SMSI) and catalyze formic acid dehydrogenation at room temperature. The Pt3Ni8/TiB2 catalyst showed high catalytic activity and stability and may improve thermal stability and catalytic performance by partially replacing noble metals with magnetic Ni metal.
SUSTAINABLE ENERGY & FUELS
(2022)
Article
Chemistry, Physical
Xuehan Yu, Kaicheng Qian, Leilei Du, Jiemei Zhang, Nan Lu, Ziqiang Miao, Yuezhou Li, Hisayoshi Kobayashi, Xiaoqing Yan, Renhong Li
Summary: This study reports a strong Jahn-Teller distortion at Mn3O4-MnO heterointerfaces, which can regulate the electronic and lattice structures of the composite support, enhancing the catalytic activity of hydrogen production from formaldehyde.
SUSTAINABLE ENERGY & FUELS
(2022)
Article
Chemistry, Physical
Shuang Chen, Xueyan Pan, Leilei Du, Xiaoqing Yan, Sha Li, Renhong Li
Summary: Direct splitting of liquid organic fuels using a particulate catalyst is an effective way to produce hydrogen on a large scale. The Cu/MgO catalyst demonstrated exceptional turnover frequencies (TOF, 320.71 h(-1)) and improved stability under aerobic conditions in neutral media. This work provides opportunities for the efficient conversion of liquid organic fuels into hydrogen under ambient conditions.
SUSTAINABLE ENERGY & FUELS
(2021)
Article
Chemistry, Physical
Leilei Du, Gang Wang, Xiaoqing Yan, Hisayoshi Kobayashi, Sha Li, Renhong Li, Wenxing Chen
Summary: This study presents the catalytic activity of biomimetic polydopamine (PDA) nanoparticles for formaldehyde (HCHO) reforming into hydrogen (H-2) with O-2 acting as a co-catalyst. The catechol in PDA activates O-2 molecules to facilitate water dissociation and HCHO decomposition, leading to efficient H-2 production. This work contributes new insights into the design of organic catalysts for aqueous-phase hydrogen evolution reactions.
SUSTAINABLE ENERGY & FUELS
(2021)
Review
Chemistry, Physical
Tong Wei, Bo Liu, Lichao Jia, Renhong Li
Summary: Solid oxide fuel cells (SOFCs) are considered efficient green energy technology in the 21st century, but carbon deposition on Ni-based anodes is a common issue when hydrocarbons are used as fuel. On-cell reforming of hydrocarbons, also known as fuel pre reforming, is a promising solution for alleviating carbon deposition, by finding an efficient and stable fuel reforming catalyst such as perovskite oxides.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Inorganic & Nuclear
Zhu Xiao-Hui, Guo Zi-Wei, Liu Xiang-Dong, Li Ren-Hong, Wei Tong
Summary: Transition metal supported catalysts, especially Ag/MgO, showed high catalytic activity in degradation of azo dyes. The synergistic effect of reductive hydrogen radical and oxidizing superoxide radical assists in breaking down chromogenic group in dye molecules, enhancing the reaction efficiency. Using aldehyde promoter achieves the dual treatment of pollutants, demonstrating a potential method for pollutant degradation.
CHINESE JOURNAL OF INORGANIC CHEMISTRY
(2021)