Relationship between site-specific nitrogen concentrations in mosses and measured wet bulk atmospheric nitrogen deposition across Europe

Harmens, Harry; Schnyder, Elvira; Thöni, Lotti; Cooper, David M.; Mills, Gina; Leblond, Sébastien; Mohr, Karl‐Heinz; Poikolainen, Jarmo; Santamarı́a, Jesús; Skudnik, Mitja; Zechmeister, Harald G.; Lindroos, Antti‐Jussi; Hanus-Illnar, Andrea

doi:10.1016/j.envpol.2014.07.016

Cited by 52 publications

(37 citation statements)

References 53 publications

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“…Despite potential confounding factors contributing to the variation in elemental concentrations in mosses (as discussed elsewhere in more detail e.g. Aboal et al, 2010;Harmens et al, 2008bHarmens et al, , 2010Harmens et al, , 2011Harmens et al, , 2014 and references therein), the deposition of cadmium (Cd), lead (Pb) and N has been identified as the primary factor contributing to the spatial variation of concentrations in mosses at the European scale (Holy et al, 2009;Schr€ oder et al, 2010a, b). For Cd and Pb, significant positive correlations were found between the concentration in mosses and the deposition modelled by the European Monitoring and Evaluation Programme (EMEP) for about two thirds or more of the countries participating in the European moss survey since 1990 (Harmens et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Heavy metal and nitrogen concentrations in mosses are declining across Europe whilst some “hotspots” remain in 2010

Harmens

Norris

Sharps

et al. 2015

Environmental Pollution

154

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Section: Introductionmentioning

confidence: 99%

Heavy metal and nitrogen concentrations in mosses are declining across Europe whilst some “hotspots” remain in 2010

Harmens

Norris

Sharps

et al. 2015

Environmental Pollution

154

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show abstract

“…Field (Lamers et al, 2000;Bragazza et al, 2005;Limpens et al, 2011;Harmens et al, 2014) and manipulation studies (Berendse et al, 2001;Nordbakken et al, 2003;Granath et al, 2009;Sheppard et al, 2013;Chiwa et al, 2016b) have been conducted to evaluate the effects of increased N deposition on Sphagnum in bog peatlands. It has been found that increases in N deposition enhanced tissue N concentration in Sphagnum (Berendse et al, 2001;Heijmans et al, 2001;Nordbakken et al, 2003;Tomassen et al, 2003;Granath et al, 2009;Fritz et al, 2012;Chiwa et al 2016b) and eventually led to N saturation of Sphagnum, defined as an excess of N supply over N demands of plants, resulting in increased inorganic N leakage to the rizosphere Limpens et al, 2004;Chiwa et al, 2016b;Manninen et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Long-term interactive effects of N addition with P and K availability on N status of Sphagnum

Chiwa

Sheppard

Leith

et al. 2018

Environmental Pollution

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Little information exists concerning the long-term interactive effect of nitrogen (N) addition with phosphorus (P) and potassium (K) on Sphagnum N status. This study was conducted as part of a long-term N manipulation on Whim bog in south Scotland to evaluate the long-term alleviation effects of phosphorus (P) and potassium (K) on N saturation of Sphagnum (S. capillifolium). On this ombrotrophic peatland, where ambient deposition was 8 kg N ha yr, 56 kg N ha yr of either ammonium (NH, N) or nitrate (NO, N) with and without P and K, were added over 11 years. Nutrient concentrations of Sphagnum stem and capitulum, and pore water quality of the Sphagnum layer were assessed. The N-saturated Sphagnum caused by long-term (11 years) and high doses (56 kg N ha yr) of reduced N was not completely ameliorated by P and K addition; N concentrations in Sphagnum capitula for N 56 PK were comparable with those for N 56, although N concentrations in Sphagnum stems for N 56 PK were lower than those for N 56. While dissolved inorganic nitrogen (DIN) concentrations in pore water for N 56 PK were not different from N 56, they were lower for N 56 PK than for N 56 whose stage of N saturation had not advanced compared to N 56. These results indicate that increasing P and K availability has only a limited amelioration effect on the N assimilation of Sphagnum at an advanced stage of N saturation. This study concluded that over the long-term P and K additions will not offset the N saturation of Sphagnum.

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“…Increased atmospheric nitrogen deposition has been observed in many regions which were disturbed by the human, especially densely populated urban areas [73,74]. Therefore, in this study, urbanization was treated as the risk source.…”

Section: Assessment-ecological Risk Analysismentioning

confidence: 98%

Comprehensive Analysis of Nitrogen Deposition in Urban Ecosystem: A Case Study of Xiamen City, China

et al. 2018

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Atmospheric nitrogen deposition can supply nitrogen for ecosystems while posing a serious threat to ecological security. An assessment of the ecological risks caused by atmospheric nitrogen deposition is critical for urban sustainable development. Based on “Ecological Risk Analysis” and the “Driver-Pressure-State-Response (DPSR) framework,” this paper established a comprehensive ecological risk assessment model and assessed the ecological risk of nitrogen deposition in Xiamen City, China. The results showed that the risk from nitrogen deposition to the forest ecosystem is high due to the impact of nitrogen deposition on the residual rate of litter and survival rate of seedlings. The risks to freshwater and marine ecosystems were determined to be high and moderate, respectively, due to the promotion of eutrophication by nitrogen. The risk to farm ecosystems was low due to the impact on weeds. The proportion of high-risk areas in Xiamen City was 37.1%. Among the districts of Xiamen City, Tong’an and Xiang’an had the highest proportion of high-risk areas (48%) and low-risk areas (31.8%), respectively.

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Relationship between site-specific nitrogen concentrations in mosses and measured wet bulk atmospheric nitrogen deposition across Europe

Cited by 52 publications

References 53 publications

Heavy metal and nitrogen concentrations in mosses are declining across Europe whilst some “hotspots” remain in 2010

Heavy metal and nitrogen concentrations in mosses are declining across Europe whilst some “hotspots” remain in 2010

Long-term interactive effects of N addition with P and K availability on N status of Sphagnum

Comprehensive Analysis of Nitrogen Deposition in Urban Ecosystem: A Case Study of Xiamen City, China

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