Article
Forestry
Shinji Kaneko, Hitomi Furusawa, Toru Okamoto, Yasuhiro Hirano
Summary: We investigated the changes in dissolved organic matter (DOM) from rain to stream water in a forested watershed. DOM supply from tree tissue and O layer caused an increase in dissolved organic carbon (DOC) concentration and specific UV absorbance at 254 nm (SUVA(254)) in rainwater. The decrease in DOC concentration and SUVA(254) with soil depth was not observed in the soil-percolating water. DOC concentration was low in both seepage and stream waters, with a seasonal variation observed in the stream water. The correlation between DOC concentration and absorbance at 254 nm (UV254) was significant, with different ratios observed among different sample types.
Article
Environmental Sciences
Xianwei Wang, Changchun Song, Ning Chen, Tianhua Qiao, Shujie Wang, Jingyi Jiang, Yu Du
Summary: This study investigated the release and storage of carbon (C) during autumn and early winter in a permafrost peatland in Northeast China. The results showed that methane (CH4) and carbon dioxide (CO2) fluxes had different peak values and gases were mainly stored in the soil as dissolved CH4 and CO2. The dissolved organic carbon (DOC) concentration was closely related to the dissolved C gases.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Civil
Ewen Silvester, Terry Karis, Anne Yusuf, John Pengelly, Samantha Grover, Gavin N. Rees
Summary: The study found that storm events mobilized dissolved organic carbon and nitrogen, with proteins playing a key role and exhibiting different dynamics at different stages of the storm. This suggests that there is spatial and temporal separation of molecular groups within the pools of dissolved organic carbon and nitrogen, leading to changing composition of DOC through a storm cycle.
JOURNAL OF HYDROLOGY
(2021)
Article
Biodiversity Conservation
Joshua F. Dean, Michael F. Billett, T. Edward Turner, Mark H. Garnett, Roxane Andersen, Rebecca M. McKenzie, Kerry J. Dinsmore, Andy J. Baird, Pippa J. Chapman, Joseph Holden
Summary: Peatlands are globally important stores of soil carbon, and pools within peatlands have high concentrations of carbon, including greenhouse gases. Our study shows that the carbon in the pools is mostly derived from contemporary primary production, rather than from deep peat layers. Restoration pools are effective at preventing the release of deep, old carbon, but millennial-aged carbon can be emitted through CH4 ebullition.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Engineering, Civil
Sarah Irvine, Scott J. Davidson, Jonathan S. Price, Maria Strack
Summary: The study investigated the DOC fluxes in a constructed fen in 2015 and 2016, finding that vegetation production is the main source of DOC concentration, while precipitation and runoff inputs have minimal impact on the quality of DOC present in the fen, with minimal DOC export from the fen.
JOURNAL OF HYDROLOGY
(2021)
Article
Soil Science
Miaorun Wang, Haojie Liu, Fereidoun Rezanezhad, Dominik Zak, Bernd Lennartz
Summary: This study investigated a recently rewetted peatland on the Baltic Sea coast and found a moderate to strong spatial dependence of surface elevation, soil organic matter (SOM) content, and carbon:nitrogen (C:N) ratio. The soils at low elevations released more dissolved organic carbon (DOC) and ammonium (NH4+) compared to soils at high elevations. The results suggest that a potential sea level rise may increase the export of NH4+ from low-lying and rewetted peat soils to the sea, impacting adjacent marine ecosystems.
Article
Green & Sustainable Science & Technology
Xianwei Wang, Changchun Song, Li Sun, Yanyu Song, Aixin Hou, Wenwen Tan
Summary: The study found that the DOC concentrations in permafrost peatlands in the Great Hing'an Mountains of Northeast China varied significantly with depth and season, but showed no significant relationship with SUVA(254). DOC concentrations were higher in autumn and increased as the seasonal thaw depth increased.
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
(2021)
Article
Environmental Sciences
Anna Ferretto, Rob Brooker, Robin Matthews, Pete Smith
Summary: The study highlights the potential risk for drinking water provision in Scotland from peatlands due to climate change, urging the need for frequent monitoring and necessary mitigation measures. Variability among catchments shows some may face substantial seasonal increase in DOC levels. Peatland restoration could be useful in counteracting the projected DOC increase and ensuring safe drinking water provision.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Xiaoyun Xu, Kaijun Lu, Zucheng Wang, Meng Wang, Shengzhong Wang
Summary: This study found significant differences in DOC concentrations and compositions between natural and drained areas of peatland, suggesting that drainage may accelerate the decomposition of peat organic matters, releasing more protein-like structures into water.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Biodiversity Conservation
Maofei Ni, Rong Mao, Xianwei Wang
Summary: This study investigated the response of dissolved organic matter (DOM) quantity and characteristics to nitrogen (N) addition in a permafrost peatland in Northeast China. The results showed that increased N availability reduced dissolved organic carbon concentrations in surface water and soil pore water, and had a greater impact on DOM characteristics in soil pore water than in surface water.
ECOLOGICAL INDICATORS
(2023)
Article
Environmental Sciences
Shokoufeh Salimi, Miklas Scholz
Summary: The impact of different climate scenarios, drought, and water level management on the outflow water quality of peatlands has been investigated. The study revealed that water level management has substantial and favorable effects on peatland water quality under different climate scenarios.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
Zao Yang, Dan Zhu, Liangfeng Liu, Xinwei Liu, Huai Chen
Summary: This study examined methane emissions from peatlands on the Qinghai-Tibet Plateau and found that freeze-thaw cycles increased methane emissions, with higher rates in high-altitude peatlands compared to low-altitude ones. The study emphasizes the importance of freeze-thaw cycles in methane emissions and suggests that methane emissions from high-altitude peatlands will increase under warmer climate conditions in the future.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Water Resources
Emily Prystupa, Scott J. J. Davidson, Jonathan Price, Maria Strack
Summary: In northern Alberta, oil sands mining has a negative impact on the boreal landscape, and peatland construction is being tested for reclamation purposes. Understanding the cycling of solutes and dissolved organic carbon (DOC) is crucial in determining the self-sustainability of constructed peatlands. This study focused on measuring DOC concentration, quality, and sodium (Na+) levels in the rooting zone of Nikanotee Fen to evaluate the role of Na+ in DOC dynamics. The results suggest that vegetation inputs are the main source of DOC in the fen, and elevated Na+ levels may lead to increased carbon export.
HYDROLOGICAL PROCESSES
(2023)
Article
Limnology
Lauren M. Thompson, McKenzie A. Kuhn, Johanna C. Winder, Lucas P. P. Braga, Ryan H. S. Hutchins, Andrew J. Tanentzap, Vincent L. St. Louis, David Olefeldt
Summary: Permafrost thaw can lead to increased production of neurotoxic methylmercury (MeHg) in northern peatlands. This study examined total mercury (THg) and MeHg concentrations in lakes and streams along a permafrost transect in boreal western Canada. The results showed that peatlands were the primary sources of MeHg, with concentrations increasing in streams with higher levels of aromatic dissolved organic carbon (DOC), iron, and lower pH. The study also found that peatland lakes acted as sinks for MeHg, with lower concentrations compared to streams.
LIMNOLOGY AND OCEANOGRAPHY
(2023)
Article
Water Resources
R. Daniel Moore, Rita D. Winkler, Graeme D. Hope
Summary: This study investigates the natural variability of true colour and the effects of forest harvesting on it in snow-dominated headwater catchments. The study finds that the colour values vary seasonally and increase significantly after harvesting. There are significant relationships between colour values and organic soils as well as streamflow.
HYDROLOGICAL PROCESSES
(2022)
Article
Environmental Sciences
Zucheng Wang, Shasha Liu, Zhao-Jun Bu, Shengzhong Wang
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2018)
Article
Electrochemistry
Zhisheng Lv, Yanfeng Chen, Hengchen Wei, Fusheng Li, Yun Hu, Chaohai Wei, Chunhua Feng
ELECTROCHIMICA ACTA
(2013)
Article
Environmental Sciences
Zucheng Wang, Hongkai Li, Shasha Liu
JOURNAL OF SOILS AND SEDIMENTS
(2019)
Article
Environmental Sciences
Zucheng Wang, Shasha Liu, Tianyu Zhang
Article
Soil Science
Zucheng Wang, Shasha Liu, Kaijun Lu, Xiaoyun Xu, Tianyu Zhang
EUROPEAN JOURNAL OF SOIL SCIENCE
(2020)
Article
Environmental Sciences
Hengchen Wei, Dengzhou Gao, Yong Liu, Xianbiao Lin
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Environmental Sciences
Hengchen Wei, Xianbiao Lin
Summary: This study revealed the spatiotemporal patterns of AOA and AOB potential rates and gene abundance along gradients of human influences and identified organic matter and nutrients as key environmental factors that shaped the variation of AOA and AOB along the continuum.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Hengchen Wei, Xin Xu, Allan E. Jones, Amber K. Hardison, Kevan B. Moffett, James W. McClelland
Summary: This study sheds light on the role of tidal freshwater zones (TFZs) in modifying the timing and forms of nitrogen (N) inputs to estuaries. The research found that median concentrations of dissolved inorganic N (DIN) were lower in TFZs compared to upstream non-tidal river reaches, and exhibited spatial gradients. The forms of N also changed within TFZs, with DIN transforming into organic N. Comparisons of discharge and N flux in the Aransas River TFZ showed that tidal patterns influenced the timing of N export, with export exceeding input in winter and being relatively balanced in summer.
ESTUARIES AND COASTS
(2022)
Review
Environmental Sciences
Hengchen Wei, Mengxin Wang, Miaolei Ya, Chaobin Xu
Summary: In this review, the distribution of denitrifying anaerobic methane oxidation (DAMO) in the environment is examined. The analysis highlights a focus on freshwater systems and an under-studied aspect of DAMO involving ANME-2d archaea. Future research could explore the comparison of DAMO with other nitrogen cycling pathways and the impact of environmental conditions in the river-estuary-sea continuum.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Miaolei Ya, Yuling Wu, Xinhong Wang, Hengchen Wei
Summary: The research reveals that microbial degradation of aquatic particles and organic carbon plays a significant role in regulating the occurrence and transport of hydrophobic organic contaminants. Factors such as particle size, organic carbon composition, and temperature gradients influence the distribution and adsorption capacity of these contaminants. Moreover, microbial degradation and burial efficiency affect the potential burial of different hydrophobic contaminants.
ENVIRONMENTAL POLLUTION
(2022)
Article
Geosciences, Multidisciplinary
Zucheng Wang, ShaSha Liu, Chang Huang, Yuyan Liu, Zhaojun Bu
