Phosphorus Binding to Nanoparticles and Colloids in Forest Stream Waters

Gottselig, Nina; Nischwitz, Volker; Meyn, Thomas; Amelung, Wulf; Bol, Roland; Hallé, Cynthia; Vereecken, Harry; Siemens, Jan; Klumpp, Erwin

doi:10.2136/vzj2016.07.0064

Cited by 55 publications

(22 citation statements)

References 56 publications

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“…We observed a negative correlation between the TC and TN content and P coll /TDP in aggregates, indicating that higher the TC and TN content, the less likely release of P coll from the soil aggregates, which was further confirmed by the negative correlation between TC and P coll /TDP in the regression model (Table 4). Studies had shown that C and N are important carriers of P coll (most organics act as organic colloidal complexes) [28,69,70], and the organic matter could stabilize Al/Fe colloids [71]. Therefore, increasing the carbon content in soil aggregates could be an important strategy to reduce the migration of P coll in the soil.…”

Section: Loss Potential Of Colloidal P In Aggregatesmentioning

confidence: 99%

Enhanced soil aggregate stability limits colloidal phosphorus loss potentials in agricultural systems

Jin

et al. 2020

Environ Sci Eur

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Background: Colloid-facilitated phosphorus (P) transport is recognized as an important pathway for the loss of soil P in agricultural systems; however, information regarding soil aggregate-associated colloidal P (P coll ) is lacking. To elucidate the effects of aggregate size on the potential loss of P coll in agricultural systems, soils (0-20 cm depth) from six land-use types were sampled in the Zhejiang Province in the Yangtze River Delta region, China. The aggregate size fractions (2-8 mm, 0.26-2 mm, 0.053-0.26 mm and < 0.053 mm) were separated using the wet sieving method. Colloidal P and other soil parameters in aggregates were analyzed. Results:Our study demonstrated that 0.26-2 mm small macroaggregates had the highest total P (TP) content. In acidic soils, the highest P coll content was observed in the 0.26-to 2-mm-sized aggregates, while the lowest was reported in the < 0.053 mm (silt + clay)-sized particles, the opposite of that revealed in alkaline and neutral soils. Paddy soils contained less P coll than other land-use types. The proportion of P coll in total dissolved P (TDP) was dominated by < 0.053 mm (silt + clay)-sized particles. Aggregate size strongly influenced the loss potential of P coll in paddy soils, where P coll contributed up to 83% TDP in the silt + clay-sized particles. The P coll content was positively correlated with TP, Al, Fe, and the mean weight diameter. Aggregate-associated total carbon (TC), total nitrogen (TN), C/P, and C/N had significant negative effects on the contribution of P coll to potential soil P loss. The P coll content of the aggregates was controlled by the aggregate-associated TP and Al content, as well as the soil pH value. The potential loss of P coll from aggregates was controlled by its organic matter content. Conclusion:We concluded that management practices that increase soil aggregate stability or its organic carbon content will limit P coll loss in agricultural systems.

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Section: Loss Potential Of Colloidal P In Aggregatesmentioning

confidence: 99%

Enhanced soil aggregate stability limits colloidal phosphorus loss potentials in agricultural systems

Jin

et al. 2020

Environ Sci Eur

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“…Locating and apportionment of the sources and fluxes of the dissolved vs. collodial P conveyed by rivers in landscapes remains a longstanding and fundamental challenge for catchment scientists (see McClain et al, 2003;Bol et al, 2016;Gottselig et al, 2017b;Missong et al, 2018), with major implications for land management and nutrient pollution mitigation strategies. Colloidal P is characterized as dissolved P in most routine water quality monitoring programs (Gottselig et al, 2017a), however, it is believed to have reduced bioavailability compared to the truly dissolved P (Baken et al, 2014). Furthermore, colloids which consist of organic matter, Fe/Al oxyhydroxides and clay minerals (Jiang et al, 2015a;Missong et al, 2017) are important P carriers in and to surface waters (Gottselig et al, 2014(Gottselig et al, , 2017a and thus should be more explicitly accounted for in P budgets.…”

Section: Difficulties In Predictions Of Dissolved/colloidal/particulamentioning

confidence: 99%

Challenges of Reducing Phosphorus Based Water Eutrophication in the Agricultural Landscapes of Northwest Europe

et al. 2018

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“…The specific reactivity of nanoparticles is high, in comparison to larger‐sized colloids, (Hartland et al, ; Qafoku, ) rendering them potentially predominant carriers of nutrients in ecosystems. It has already been shown that NNP can bind the majority of P present in soil solutions (Hens & Merckx, ) and stream waters (Gottselig et al, , ) and that they can even support plant uptake of P from solution (Montalvo wt al., ). First results indicate that organic matter, Fe, and/or Al may be major binding partners for P in NNP of an acidic forest river system and that the binding of P varies depending on the stream water composition (Baken, Regelink et al, ; Gottselig et al, ).…”

Section: Introductionmentioning

confidence: 99%

Elemental Composition of Natural Nanoparticles and Fine Colloids in European Forest Stream Waters and Their Role as Phosphorus Carriers

Gottselig¹,

Amelung

Kirchner

et al. 2017

Global Biogeochemical Cycles

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Biogeochemical cycling of elements largely occurs in dissolved state, but many elements may also be bound to natural nanoparticles (NNP, 1–100 nm) and fine colloids (100–450 nm). We examined the hypothesis that the size and composition of stream water NNP and colloids vary systematically across Europe. To test this hypothesis, 96 stream water samples were simultaneously collected in 26 forested headwater catchments along two transects across Europe. Three size fractions (~1–20 nm, >20–60 nm, and >60 nm) of NNP and fine colloids were identified with Field Flow Fractionation coupled to inductively coupled plasma mass spectrometry and an organic carbon detector. The results showed that NNP and fine colloids constituted between 2 ± 5% (Si) and 53 ± 21% (Fe; mean ± SD) of total element concentrations, indicating a substantial contribution of particles to element transport in these European streams, especially for P and Fe. The particulate contents of Fe, Al, and organic C were correlated to their total element concentrations, but those of particulate Si, Mn, P, and Ca were not. The fine colloidal fractions >60 nm were dominated by clay minerals across all sites. The resulting element patterns of NNP <60 nm changed from North to South Europe from Fe‐ to Ca‐dominated particles, along with associated changes in acidity, forest type, and dominant lithology.

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Phosphorus Binding to Nanoparticles and Colloids in Forest Stream Waters

Cited by 55 publications

References 56 publications

Enhanced soil aggregate stability limits colloidal phosphorus loss potentials in agricultural systems

Enhanced soil aggregate stability limits colloidal phosphorus loss potentials in agricultural systems

Challenges of Reducing Phosphorus Based Water Eutrophication in the Agricultural Landscapes of Northwest Europe

Elemental Composition of Natural Nanoparticles and Fine Colloids in European Forest Stream Waters and Their Role as Phosphorus Carriers

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