The evolution of Earth's biogeochemical nitrogen cycle
Nitrogen is an essential nutrient for all life on Earth and it acts as a major control on
biological productivity in the modern ocean. Accurate reconstructions of the evolution of life …
biological productivity in the modern ocean. Accurate reconstructions of the evolution of life …
Interpretation of the nitrogen isotopic composition of Precambrian sedimentary rocks: Assumptions and perspectives
Nitrogen isotope compositions in sedimentary rocks (d 15 N sed) are routinely used for
reconstructing Cenozoic N-biogeochemical cycling and are also being increasingly applied …
reconstructing Cenozoic N-biogeochemical cycling and are also being increasingly applied …
Marine biogeochemical nitrogen cycling through Earth's history
Earth's marine nitrogen cycle has co-evolved with life and redox conditions over geological
time. In this Review, we provide an account of nitrogen cycling in the world's oceans over the …
time. In this Review, we provide an account of nitrogen cycling in the world's oceans over the …
Spatial and temporal trends in Precambrian nitrogen cycling: A Mesoproterozoic offshore nitrate minimum
Fixed nitrogen is an essential nutrient for eukaryotes. As N 2 fixation and assimilation of
nitrate are catalyzed by metalloenzymes, it has been hypothesized that in Mesoproterozoic …
nitrate are catalyzed by metalloenzymes, it has been hypothesized that in Mesoproterozoic …
Application of the isotope pairing technique in sediments: use, challenges, and new directions
Determining accurate rates of benthic nitrogen (N) removal and retention pathways from
diverse environments is critical to our understanding of process distribution and constructing …
diverse environments is critical to our understanding of process distribution and constructing …
Using stable isotopes to identify nitrogen transformations and estimate denitrification in a semi-constructed wetland
Y Hu, Z **, Q Hu, J Hu, C Ni, F Li - Science of The Total Environment, 2020 - Elsevier
Constructed wetlands are effective at removing nitrate, one of the major pollutants in aquatic
ecosystems. In this study, nitrogen and oxygen isotopes (δ 15 N and δ 18 O) were used to …
ecosystems. In this study, nitrogen and oxygen isotopes (δ 15 N and δ 18 O) were used to …
Contrasting nutrient availability between marine and brackish waters in the late Mesoproterozoic: Evidence from the Paranoá Group, Brazil
Understanding the delayed rise of eukaryotic life on Earth is one of the most fundamental
questions about biological evolution. Numerous studies have presented evidence for …
questions about biological evolution. Numerous studies have presented evidence for …
High nitrogen isotope fractionation of nitrate during denitrification in four forest soils and its implications for denitrification rate estimates
Denitrification is a major process contributing to the removal of nitrogen (N) from
ecosystems, but its rate is difficult to quantify. The natural abundance of isotopes can be …
ecosystems, but its rate is difficult to quantify. The natural abundance of isotopes can be …
Biogeochemical attenuation of nitrate in a sandy subterranean estuary: Insights from two stable isotope approaches
The role of permeable sediments and subterranean estuaries as coastal nutrient filters is a
question of key interest, particularly in areas with high nitrogen loadings. Here, we evaluated …
question of key interest, particularly in areas with high nitrogen loadings. Here, we evaluated …
Linkages between nitrogen cycling, nitrogen isotopes, and environmental properties in paleo-lake basins
L **a, J Cao, EE Stüeken, W Hu, D Zhi - Bulletin, 2022 - pubs.geoscienceworld.org
The linkages between nitrogen cycling, nitrogen isotopes, and environmental properties are
fundamental for reconstructing nitrogen biogeochemistry. While the impact of ocean redox …
fundamental for reconstructing nitrogen biogeochemistry. While the impact of ocean redox …