A5012141977- Microbial Community Ecology and Physiology
- Marine and coastal ecosystems
- Wastewater Treatment and Nitrogen Removal
- Marine Biology and Ecology Research
- Catalytic Processes in Materials Science
- Gut microbiota and health
- Soil Carbon and Nitrogen Dynamics
- Isotope Analysis in Ecology
- Ammonia Synthesis and Nitrogen Reduction
- Ocean Acidification Effects and Responses
- Meteorological Phenomena and Simulations
- Genomics and Phylogenetic Studies
- Irrigation Practices and Water Management
- Climate variability and models
- Nanomaterials for catalytic reactions
- Microbial Fuel Cells and Bioremediation
- Atmospheric and Environmental Gas Dynamics
- Marine and fisheries research
- Marine Bivalve and Aquaculture Studies
- Minerals Flotation and Separation Techniques
- Soil and Water Nutrient Dynamics
- Metal Extraction and Bioleaching
- Crop Yield and Soil Fertility
- Technology and Security Systems
- Advanced Measurement and Detection Methods
Zhengzhou University
2025
Kunming University of Science and Technology
2012-2024
Carnegie Institution for Science
2022-2024
Yale University
2021-2024
Inner Mongolia Autonomous Region Meteorological Bureau
2022-2024
Shenyang Agricultural University
2024
Princeton University
2017-2023
China University of Mining and Technology
2023
State Key Joint Laboratory of Environment Simulation and Pollution Control
2015-2023
Tsinghua University
2015-2023
Abstract As two major forest types in the subtropics, broadleaved evergreen and deciduous forests have long interested ecologists. However, little is known about their belowground ecosystems despite ecological importance driving biogeochemical cycling. Here, we used Illumina MiSeq sequencing targeting 16S rRNA gene a microarray named GeoChip functional genes to analyse microbial communities soils of Shennongjia Mountain Central China, region as ‘The Oriental Botanic Garden’ for its...
The forest timberline responds quickly and markedly to climate changes, rendering it a ready indicator. Climate warming has caused an upshift of the worldwide. However, impact on belowground ecosystem biogeochemical cycles remain elusive. To understand soil microbial ecology timberline, we analyzed communities via 16s rRNA Illumina sequencing, microarray-based tool named GeoChip 4.0 random matrix theory-based association network approach. We selected 24 sampling sites at two vegetation belts...
Abstract. Oxygen-deficient zones (ODZs) are major sites of net natural nitrous oxide (N2O) production and emissions. In order to understand changes in the magnitude N2O response global change, knowledge on individual contributions microbial pathways (nitrification denitrification) their regulation is needed. ODZ coastal area off Peru, sensitivity oxygen organic matter was investigated using 15N tracer experiments combination with quantitative PCR (qPCR) microarray analysis total active...
Abstract Nitrite is a pivotal component of the marine nitrogen cycle. The fate nitrite determines loss or retention fixed nitrogen, an essential nutrient for all organisms. Loss occurs via anaerobic reduction to gases during denitrification and anammox, while oxidation nitrate. usually represented in biogeochemical models by one kinetic parameter oxygen threshold, below which set zero. Here we find that responses concentrations vary along redox gradient Pacific Ocean minimum zone, indicating...
Abstract Oxygen deficient zones (ODZs) account for about 30% of total oceanic fixed nitrogen loss via processes including denitrification, a microbially mediated pathway proceeding stepwise from NO3− to N2. This process may be performed entirely by complete denitrifiers capable all four enzymatic steps, but many organisms possess only partial denitrification pathways, either producing or consuming key intermediates such as the greenhouse gas N2O. Metagenomics and marker gene surveys have...
Abstract Global climate models predict that the frequency and intensity of precipitation events will increase in many regions across world. However, biosphere‐climate feedback to elevated (eP) remains elusive. Here, we report a study on one longest field experiments assessing effects eP, alone or combination with other change drivers such as CO 2 (eCO ), warming nitrogen deposition. Soil total carbon (C) decreased after decade eP treatment, while plant root production years. To explain this...
Abstract Warming has been shown to cause soil carbon (C) loss in northern grasslands owing accelerated microbial decomposition that offsets increased grass productivity. Yet, a multi-decadal survey indicated the surface C stock Tibetan alpine remained relatively stable. To investigate this inconsistency, we analyzed feedback responses of communities simulated warming by transplant grasslands. Whereas functional diversity decreased response warming, community structure did not correlate with...
Abstract Nitrite oxidation is an essential step in transformations of fixed nitrogen. The physiology nitrite oxidizing bacteria (NOB) implies that the rates should be controlled by concentration their substrate, nitrite, and terminal electron acceptor, oxygen. sensitivities to oxygen concentrations were investigated using 15 N tracer incubations Eastern Tropical North Pacific. stimulated under low situ conditions, following Michaelis‐Menten kinetics, indicating was limiting substrate....
Abstract The ocean is a net source of N2O, potent greenhouse gas and ozone-depleting agent. However, the removal N2O via microbial consumption poorly constrained rate measurements have been restricted to anoxic waters. Here we expand from zones sharp oxygen gradient above them, experimentally determine kinetic parameters in both oxic seawater for first time. We find that substrate affinity, O2 tolerance, community composition N2O-consuming microbes waters differ those underlying layers....
Abstract An accurate quantification of global methane sources and sinks is imperative for assessing realistic pathways to mitigate climate change. A key challenge quantifying the Global Methane Budget (Saunois et al., 2020, https://doi.org/10.5194/essd‐12‐1561‐2020 ) lack consistency in uncertainties between sectors. Here we provide a new perspective on bottom‐up (BU) top‐down (TD) by using an expert opinion analysis based questionnaire conducted 2021. Expectedly, experts rank highest...
Abstract Estuaries at the global scale are significant but highly uncertain sources of atmospheric nitrous oxide (N 2 O), which is an intense greenhouse gas and ozone depletion agent. As largest estuary in United States, Chesapeake Bay suggested to be a spatially temporally variable source sink N O. However, limited observations O cycling preclude us from estimating predicting its net flux. To improve our mechanistic understanding processes that control flux point production, we applied...
Abstract Marine oxygen‐deficient zones represent a natural source of nitrous oxide (N 2 O), potent greenhouse gas and ozone‐depleting agent. To investigate controls on N O production, the responses ammonia oxidation (AO) to nitrite () with respect oxygen (O ), ammonium concentrations were evaluated using tracer incubations in Eastern Tropical North Pacific. Within oxycline, additions stimulated production according Michaelis–Menten kinetics, indicating that both substrates limiting, even if...
The ozone-depleting and greenhouse gas, nitrous oxide (N2O), is mainly consumed by the microbially mediated anaerobic process, denitrification. N2O consumption last step in canonical denitrification, also least O2 tolerant step. Community composition of total active consuming bacteria was analyzed based on (DNA) transcriptionally (RNA) reductase (nosZ) genes using a functional gene microarray. nosZ communities were dominated limited number archetypes, affiliated with from marine, soil marsh...
Abstract Fixed nitrogen limits primary productivity in most areas of the surface ocean. Nitrite oxidation is main source nitrate, abundant form inorganic fixed nitrogen. Even though known as an aerobic process, nitrite not always stimulated by increased oxygen concentration, and occurs layers minimum zones (OMZs) where detectable. Nitrite‐oxidizing bacteria, since their original isolation aerobes, were also detected these layers. Whether how occurring anoxic seawater debated. Here, we...
AbstractA central challenge in community ecology is understanding and predicting the effects of abiotic factors on assembly. In particular, microbial communities play a role ecosystem, but we do not understand how changing like temperature are going to affect composition or function. this article, studied self-assembly multiple synthetic environments changes based metabolic responses different functional groups along gradient. many communities, coexist through partitioning carbon sources an...