scholarly journals Estimating Sediment Denitrification Rates Using Cores and N2O Microsensors

10.3791/58553 ◽  
2018 ◽  
Author(s):  
Carlos Palacin-Lizarbe ◽  
Lluís Camarero ◽  
Jordi Catalan
Keyword(s):  
Sediment Denitrification

Wind induced algal migration manipulates sediment denitrification N-loss patterns in shallow Taihu Lake, China

2021 ◽  
pp. 117887
Author(s):  
Wenqing Shi ◽  
Lin Zhu ◽  
Bryce Van Dam ◽  
Ashley R. Smyth ◽  
Jianming Deng ◽  
...  
Keyword(s):  
Taihu Lake ◽  
N Loss ◽  
Sediment Denitrification

Warming stimulates sediment denitrification at the expense of anaerobic ammonium oxidation

2020 ◽  
Vol 10 (4) ◽  
pp. 349-355 ◽  
Author(s):  
Ehui Tan ◽  
Wenbin Zou ◽  
Zhenzhen Zheng ◽  
Xiuli Yan ◽  
Moge Du ◽  
...  
Keyword(s):  
Anaerobic Ammonium Oxidation ◽  
Ammonium Oxidation ◽  
Sediment Denitrification

Significance of dredging on sediment denitrification in Meiliang Bay, China: A year long simulation study

2010 ◽  
Vol 22 (1) ◽  
pp. 68-75 ◽  
Author(s):  
Jicheng Zhong ◽  
Chengxin Fan ◽  
Lu Zhang ◽  
Edward Hall ◽  
Shiming Ding ◽  
...  
Keyword(s):  
Simulation Study ◽  
Meiliang Bay ◽  
Sediment Denitrification

Metagenomic insights into the effect of oxytetracycline on microbial structures, functions and functional genes in sediment denitrification

2018 ◽  
Vol 161 ◽  
pp. 85-91 ◽  
Author(s):  
Yong Zou ◽  
Manxia Lin ◽  
Wenguang Xiong ◽  
Mei Wang ◽  
Jiaxuan Zhang ◽  
...  
Keyword(s):  
Functional Genes ◽  
Microbial Structures ◽  
Sediment Denitrification

Quantifying riverine sediment denitrification rates in situ with a novel, portable hyporheic chamber

2009 ◽  
Vol 30 (5) ◽  
pp. 809-812
Author(s):  
Tara M. Higgins ◽  
James H. McCutchan ◽  
William M. Lewis
Keyword(s):  
Riverine Sediment ◽  
Sediment Denitrification

Comparison of isotope pairing and N2:Ar methods for measuring sediment denitrification—Assumption, modifications, and implications

Estuaries ◽  
2002 ◽  
Vol 25 (6) ◽  
pp. 1077-1087 ◽  
Author(s):  
Bradley D. Eyre ◽  
Søren Rysgaard ◽  
Tage Dalsgaard ◽  
Peter Bondo Christensen
Keyword(s):  
Isotope Pairing ◽  
Sediment Denitrification

scholarly journals Human land uses enhance sediment denitrification and N<sub>2</sub>O production in Yangtze lakes primarily by influencing lake water quality

2015 ◽  
Vol 12 (20) ◽  
pp. 6059-6070 ◽  
Author(s):  
W. Liu ◽  
L. Yao ◽  
Z. Wang ◽  
Z. Xiong ◽  
G. Liu
Keyword(s):  
Water Quality ◽  
Lake Water ◽  
Urban Areas ◽  
Structural Equation ◽  
Land Uses ◽  
Sediment Characteristics ◽  
Production Rates ◽  
Lake Water Quality ◽  
N2o Production ◽  
Sediment Denitrification

Abstract. Sediment denitrification in lakes alleviates the effects of eutrophication through the removal of nitrogen to the atmosphere as N2O and N2. However, N2O contributes notably to the greenhouse effect and global warming. Human land uses (e.g. agricultural and urban areas) strongly affect lake water quality and sediment characteristics, which, in turn, may regulate lake sediment denitrification and N2O production. In this study, we investigated sediment denitrification and N2O production and their relationships to within-lake variables and watershed land uses in 20 lakes from the Yangtze River basin in China. The results indicated that both lake water quality and sediment characteristics were significantly influenced by watershed land uses. N2O production rates increased with increasing background denitrification rates. Background denitrification and N2O production rates were positively related to water nitrogen concentrations but were not significantly correlated with sediment characteristics and plant community structure. A significant positive relationship was observed between background denitrification rate and percentage of human-dominated land uses (HDL) in watersheds. Structural equation modelling revealed that the indirect effects of HDL on sediment denitrification and N2O production in Yangtze lakes were mediated primarily through lake water quality. Our findings also suggest that although sediments in Yangtze lakes can remove large quantities of nitrogen through denitrification, they may also be an important source of N2O, especially in lakes with high nitrogen content.

scholarly journals Within-lake variability and environmental controls of sediment denitrification and associated N2O production in a shallow eutrophic lake

2016 ◽  
Vol 97 ◽  
pp. 251-257 ◽  
Author(s):  
Lu Yao ◽  
Xiaoliang Jiang ◽  
Chengrong Chen ◽  
Guihua Liu ◽  
Wenzhi Liu
Keyword(s):  
Eutrophic Lake ◽  
N2o Production ◽  
Environmental Controls ◽  
Shallow Eutrophic Lake ◽  
Sediment Denitrification

Influence of Geomorphological Variability in Channel Characteristics on Sediment Denitrification in Agricultural Streams

2006 ◽  
Vol 35 (6) ◽  
pp. 2103-2112 ◽  
Author(s):  
Matthew R. Opdyke ◽  
Mark B. David ◽  
Bruce L. Rhoads
Keyword(s):  
Channel Characteristics ◽  
Agricultural Streams ◽  
Sediment Denitrification
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