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Ruowen Qiang, Meng Wang, Qian Li, Yingjie Li, Huixian Sun, Wenyu Liang, Cuilan Li, Jinjing Zhang and Hang Liu
Denitrification is a key process in soil available nitrogen (N) loss. However, the effects of different water-saving irrigation systems on soil N components and denitrifying bacterial communities are still unclear. In this study, quantitative fluorescenc...
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Dafeng Hui, Avedananda Ray, Lovish Kasrija and Jaekedah Christian
Microbial-driven processes, including nitrification and denitrification closely related to soil nitrous oxide (N2O) production, are orchestrated by a network of enzymes and genes such as amoA genes from ammonia-oxidizing bacteria (AOB) and archaea (AOA),...
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Shouqiang Zhao, Zhongyang Li, Chuncheng Liu, Jiuming Sun, Jibin Song, Xiaotong Li and Yuan Liu
To investigate the effects of different manures in combination with fulvic acid on the abundance of N-cycling functional genes in greenhouse soils, Chinese cabbage was planted for three growing seasons. A total of six treatments?pig manure (P), pig manur...
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Qianwen Du, Dongli She, Yongchun Pan, Zhenqi Shi and Alimu Abulaiti
The problem of global warming is becoming more and more serious. N2O is a potent greenhouse gas. Most current studies on dissolved N2O concentration have focused on inland freshwater and seawater while paying less attention to coastal agricultural catchm...
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Lanfang Hu, Ziyi Feng, Yongxiang Yu and Huaiying Yao
Metal oxide nanoparticles (NPs) have been widely used in industrial and agricultural production and introduced into soils. The impact of these nanoparticles on soil nitrous oxide (N2O) emission is unclear. We conducted a microcosm experiment to investiga...
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Jiaqing Tao, Ying Zhang, Ting Zhang, Zhaoyang You, Kinjal J. Shah and Hyunook Kim
Constructed wetlands have been applied to micro-polluted rivers and lakes. However, they often show poor nitrogen removal efficiency due to insufficient carbon sources for complete denitrification in the waters. In this study, a vertical-flow wetland sys...
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Zizhen Zhou, Tinglin Huang, Weijin Gong, Yang Li, Yue Liu, Fuwang Zhao, Yanyan Dou, Shilei Zhou and Weixing Ma
A field scale experiment was performed to explore the nitrogen removal performance of the water and surface sediment in a deep canyon-shaped drinking water reservoir by operating WLAs (water-lifting aerators). Nitrogen removal performance was achieved by...
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Ning Guo, Jian Zhang, Hui-Jun Xie, Lin-Rui Tan, Jie-Ning Luo, Ze-Yu Tao, Shu-Guang Wang
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The present study investigated the effect of the food-to-microorganism (F/M) ratio on nitrous oxide (N2O) emissions in aerobic granular sludge sequencing batch airlift reactors. Three identical sequencing batch airlift reactors were fed with sodium aceta...
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Kristjan Oopkaup, Marika Truu, Hiie Nõlvak, Teele Ligi, Jens-Konrad Preem, Ülo Mander, Jaak Truu
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Dynamics of bacterial community abundance and structure of a newly established horizontal subsurface flow (HSSF) pilot-scale wetland were studied using high-throughput sequencing and quantitative polymerase chain reaction (PCR) methods. Bacterial communi...
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