Biogeosciences, 2021-05, Vol.18 (10), p.3103-3122
2021
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Details
- Autor(en) / Beteiligte
- Titel
- Complex interactions of in-stream dissolved organic matter and nutrient spiralling unravelled by Bayesian regression analysis
- Ist Teil von
- Biogeosciences, 2021-05, Vol.18 (10), p.3103-3122
- Ort / Verlag
- Katlenburg-Lindau: Copernicus GmbH
- Erscheinungsjahr
- 2021
- Quelle
- Free E-Journal (出版社公開部分のみ）
- Beschreibungen/Notizen
- Uptake and release patterns of dissolved organic matter (DOM) compounds and co-transported nutrients are entangled, and the current literature does not provide a consistent picture of the interactions between the retention processes of DOM fractions. We performed plateau addition experiments with five different complex DOM leachates in a small experimental stream impacted by diffuse agricultural pollution. The study used a wide range of DOM qualities by including leachates of cow dung, pig dung, corn leaves, leaves from trees, and whole nettle plants. We measured changes in nutrient and dissolved organic carbon (DOC) concentrations along the stream course and determined DOM fractions by fluorescence measurements and parallel factor (PARAFAC) decomposition. To assess the influences of hydrological transport processes, we used a 1D hydrodynamic model.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 1726-4189, 1726-4170eISSN: 1726-4189DOI: 10.5194/bg-18-3103-2021Titel-ID: cdi_doaj_primary_oai_doaj_org_article_7ed49efb5f1043cf8cea51584891c4e0
- Format
- –
- Schlagworte
- Agricultural pollution, Agricultural wastes, Analysis, Aquatic ecosystems, Bayesian analysis, Biogeochemistry, Carbon, Cattle manure, Components, Conditional probability, Corn, Creeks & streams, Dissolved organic carbon, Dissolved organic matter, Distribution (Probability theory), Dung, Environmental changes, Environmental factors, Fluorescence, Humic substances, Hydrodynamic models, Hydrodynamics, Hydrologic processes, Hydrology, Influence, Laboratories, Leachates, Leaching, Leaves, Mineral nutrients, Molecular weight, Nutrient concentrations, Nutrient release, Nutrient sources, Nutrient uptake, Nutrients, Organic carbon, Phosphorus, Pig manure, Probability theory, Proteins, Regression analysis, Retention, Rivers, Solutes, Spirals, Statistical analysis, Stream pollution, Streams, Transport processes, Tryptophan, Uptake