Mechanisms Driving the Distribution and Activity of Mineralization and Nitrification in the Reservoir Riparian Zone

Li, Tingting; Wang, Xiaoyan; Wang, Xia; Huang, Jiung-Yao; Shen, Lei

doi:10.1007/s00248-023-02180-3

Cited by 3 publications

(3 citation statements)

References 92 publications

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“…In this study, amoA AOA dominated the ammonia oxidation process at all the sites, with abundances 2-3 orders of magnitude higher than those of amoA AOB (Figure 5). This result is consistent with several studies on anaerobic ammonium oxidation in terrestrial-aquatic interfaces, indicating that amoA AOA is more tolerant of high moisture and hypoxic environments [12,18]. Additionally, the NH 4 + -N affinity of amoA AOA resulted in its high abundance in the land soil, where the NH 4 + -N contents were higher than in the interface sediments [4,6].…”

Section: Effects Of Water Level Fluctuations and Vegetation Cover On ...supporting

confidence: 91%

“…In the landward grass zones (LG), high biomass and debris that leach C and N resulted in higher TN and SOM contents compared to the other plant types. In contrast, the evergreen coniferous forest (dominated by Taxodium distichum and Metasequoia glyptostroboides) in the landward forest zones (LF) has lower TN and SOM due to reduced plant biomass input [12]. Similarly, biomass differences among various plant types in interface grass zones (IG) lead to higher TN and SOM contents than in other zones.…”

Section: Relationships Between Environmental Variables Water Levels A...mentioning

confidence: 99%

“…The rhizosphere of vegetation, crucial for nitrogen cycling, interacts with microorganisms through litter inputs and root exudates, affecting soil aggregate stability, water-holding capacity, and carbon sequestration [7]. Previous studies on the riparian zones of reservoirs have shown differing results, one study based on the Three Gorges Reservoir [6] and another based on the Miyun Reservoir [12]. The unique periodic fluctuations with water level variation from 145 m to 175 m in riparian zones of the Three Gorges Reservoir resulted in water level being the main factor in microbial composition and nitrogen-related gene abundance, while plant types were critical in the riparian zones of the Miyun Reservoir with 6 cm water level variation in two sampling seasons.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Vegetation Cover Varying along the Hydrological Gradient on Microbial Community and N-Cycling Gene Abundance in a Plateau Lake Littoral Zone

Yuan,

Cao,

Liao

et al. 2024

Processes

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The lake littoral zone is periodically exposed to water due to water level fluctuations, driving the succession and distribution of littoral vegetation covers, which complexly affect nutrient biogeochemical transformation. However, the combined effects of water level fluctuations and other environmental factors on microbial characteristics and functions at the regional scale remain unclear. In this study, typical vegetation cover types along various water levels were chosen to investigate the effects of water level and vegetation cover on the microbial community and functional genes in the Lake Erhai littoral zone. The results showed that water level fluctuations influenced oxygen and nitrogen compound contents due to oxic–anoxic alternations and intensive material exchange. Meanwhile, vegetation cover affected the organic matter and total nitrogen content through plant residues and root exudation supplying exogenous carbon and nitrogen. Along the hydrological gradient, the high microbial diversity and abundant microbes related to nitrogen cycling were observed in interface sediments. It was attributed to the alternating aerobic–anaerobic environments, which filtered adaptable dominant phyla and genera. The abundances of amoA AOA, nirS, and amx were higher than those of the other genes and were strongly related to flooding days and water content. In conclusion, water level fluctuations and vegetation type jointly affect microbial community structure and nitrogen-related functional genes.

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Section: Effects Of Water Level Fluctuations and Vegetation Cover On ...supporting

confidence: 91%

Section: Relationships Between Environmental Variables Water Levels A...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of Vegetation Cover Varying along the Hydrological Gradient on Microbial Community and N-Cycling Gene Abundance in a Plateau Lake Littoral Zone

Yuan,

Cao,

Liao

et al. 2024

Processes

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show abstract

Quantifying and assessing nitrogen sources and transport in a megacity water supply watershed: Insights for effective non-point source pollution management with mixSIAR and SWAT models

Hao,

Shi,

Zhan

et al. 2024

Agricultural Water Management

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Humic substance mitigated the microplastic-induced inhibition of hydroxyl radical production in riparian sediment

Ye,

Huang,

Wang

et al. 2024

Journal of Hazardous Materials

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Mechanisms Driving the Distribution and Activity of Mineralization and Nitrification in the Reservoir Riparian Zone

Cited by 3 publications

References 92 publications

Effects of Vegetation Cover Varying along the Hydrological Gradient on Microbial Community and N-Cycling Gene Abundance in a Plateau Lake Littoral Zone

Effects of Vegetation Cover Varying along the Hydrological Gradient on Microbial Community and N-Cycling Gene Abundance in a Plateau Lake Littoral Zone

Quantifying and assessing nitrogen sources and transport in a megacity water supply watershed: Insights for effective non-point source pollution management with mixSIAR and SWAT models

Humic substance mitigated the microplastic-induced inhibition of hydroxyl radical production in riparian sediment

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