globalchange  > 气候变化与战略
DOI: 10.1038/s41561-021-00742-z
论文题名:
A biogeochemical–hydrological framework for the role of redox-active compounds in aquatic systems
作者: Peiffer S.; Kappler A.; Haderlein S.B.; Schmidt C.; Byrne J.M.; Kleindienst S.; Vogt C.; Richnow H.H.; Obst M.; Angenent L.T.; Bryce C.; McCammon C.; Planer-Friedrich B.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2021
卷: 14, 期:5
起始页码: 264
结束页码: 272
语种: 英语
英文关键词: aquatic ecosystem ; aquatic environment ; biogeochemical cycle ; biogeochemistry ; organic matter ; pollutant source ; redox conditions
英文摘要: Redox-driven biogeochemical element cycles play a central role in converting organic matter in aquatic ecosystems. They also perform key functions such as removing nitrate, mitigating the formation of greenhouse gases and weakening the effects of contaminants. Recent research has revealed the presence of redox-active compounds in these ecosystems with hitherto unknown redox properties. These substances are metastable (that is, non-equilibrium solid phases), which can both donate and accept electrons. They are highly redox reactive and recyclable and may act as biogeobatteries by temporarily storing electrons. Their lifetime, however, is limited, and with time they become more crystalline and less reactive. In this Review, we argue that these redox-active metastable phases require activation by fluctuating redox conditions to maintain their high reactivity. In aquatic ecosystems, switching between oxidizing and reducing conditions can be achieved only through hydrological perturbations at hydrological interfaces (for example, water level fluctuations). We present a novel framework that links microscale biogeochemical processes to large-scale hydrological processes, and discuss implications and future research directions for biogeochemical element cycles in aquatic systems exposed to frequent hydrological disturbances. © 2021, Springer Nature Limited.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169803
Appears in Collections:气候变化与战略

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作者单位: Department of Hydrology, Bayreuth Center of Ecology and Environmental Research (BayCEER), University of Bayreuth, Bayreuth, Germany; Geomicrobiology, Center for Applied Geoscience, University of Tübingen, Tübingen, Germany; Environmental Mineralogy, Center for Applied Geoscience, University of Tübingen, Tübingen, Germany; Microbial Ecology, Center for Applied Geoscience, University of Tübingen, Tübingen, Germany; Department of Isotope Biogeochemistry, Helmholtz Centre for Environmental Research (UFZ), Leipzig, Germany; Experimental Biogeochemistry, Bayreuth Center of Ecology and Environmental Research (BayCEER), University of Bayreuth, Bayreuth, Germany; Environmental Biotechnology Group, Center for Applied Geoscience, University of Tübingen, Tübingen, Germany; Bayerisches Geoinstitut, University of Bayreuth, Bayreuth, Germany; Environmental Geochemistry, Bayreuth Center of Ecology and Environmental Research (BayCEER), University of Bayreuth, Bayreuth, Germany

Recommended Citation:
Peiffer S.,Kappler A.,Haderlein S.B.,et al. A biogeochemical–hydrological framework for the role of redox-active compounds in aquatic systems[J]. Nature Geoscience,2021-01-01,14(5)
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