Total Phosphorus Budgets and Nitrogen Loads: Lake Simcoe, Ontario (1990 to 1998)

Winter, Jennifer G.; Dillon, Peter J.; Futter, Martyn N.; Nicholls, Kenneth H.; Scheider, W. A.; Scott, L. D.

doi:10.1016/s0380-1330(02)70586-8

Cited by 57 publications

(41 citation statements)

References 23 publications

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“…Peters and Reese (1995) found higher SRP and TP concentrations than our data (10 ± 16 versus 0.9-3.3 μg L −1 , and 52 ± 89 versus 6.4-12.1 μg L −1 , respectively). Their NO x -N data are, however, very similar to ours (Hendry et al, 1981) 0.24-0.96 7.70-11.30 Lake Michigan (Eisenreich et al, 1977) 0.29 1.38 Lake Michigan (Murphy and Doskey, 1976) 0.17 § Lake Simcoe, Ontario, Canada (Winter et al, 2002) 0.56 9.20 Lake Superior (Johnson and Eisenreich, 1979) 3.17 Many locations (Newman, 1995) 0.07-17.00 Narrow Lake, Alberta, Canada (Shaw et al, 1989(Shaw et al, )al. 1989 0.20 4.24 Northeast Minnesota (Munger, 1982) 0.09-0.15 § South Florida (Ahn and James, 2001) 0.41 ± 0.33 § wet deposition only.…”

Section: Nutrient Concentrationssupporting

confidence: 83%

“…Particulates and gases are then deposited by fallout or washed out of the atmosphere by precipitation. Atmospheric N and P may be important nutrient sources where land disturbances through agricultural activity are extreme (Ahn and James, 2001;Asman, 2002;Asman et al, 1998;Pearson and Stewart, 1993;Winter et al, 2002). The Midwestern U.S. has a long history of intensive agricultural activity, so the characterization of atmospheric nutrient transport through space and time is important to an understanding of agricultural contributions of nutrients.…”

Section: Introductionmentioning

confidence: 99%

“…Past records of total P (TP) in wet precipitation from several locations in the U.S. suggest concentrations ranging from 5 to 19 μg L −1 , with deposition ranging from 0.01 to 0.1 kg ha −2 year −1 (Tabatabai, 1983). Although these levels of P have been considered insignificant when compared to other sources of P, such as agricultural runoff, recent studies suggest that atmospheric deposition can be a significant source (Chen and Fontaine, 1997;Guerzoni et al, 1999;Jassby et al, 1994;Peters and Reese, 1995;Shaw et al, 1989;Winter et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

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Dry and wet atmospheric deposition of nitrogen, phosphorus and silicon in an agricultural region

Anderson

Downing

2006

Water Air Soil Pollut

142

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We measured atmospheric nutrient deposition as wet deposition and dry deposition to dry and wet surfaces. Our analyses offer estimates of atmospheric transport of nitrogen (N), phosphorus (P) and silicon (Si) in an agricultural region. Annual dry and wet deposition (ha −1 year −1 ) was 0.3 kg of P, 7.7 kg of N, and 6.1 kg of Si; lower than or similar to values seen in other landscapes. N:P and Si:N imply that atmospheric deposition enhances P and Si limitation. Most P and soluble reactive P (SRP) deposition occurred as dryfall and most dry-deposited P was SRP so would be more readily assimilable by plant life than rainfall P. Dry deposition of N to wet surfaces was several times greater than to dry surfaces, suggesting that ammonia (NH x ) gas absorbtion by water associated with wet surfaces is an important N transport mechanism. Deposition of all nutrients peaked when agricultural planting and fertilization were active; ratios of NH x :nitrate (NO x ) reflected the predominant use of NH x fertilizer. Wet deposition estimates were consistent over hundreds of km, but dry deposition estimates were influenced by animal confinements and construction. Precipitation wash-out of atmospheric nutrients was substantial but larger rain events yielded higher rates of wet deposition. Methodological results showed that local dust contaminated wet deposition more than dry; insects, bird droppings and leaves may have biased past deposition estimates; and estimating dry deposition to dry plastic buckets may underestimate annual deposition of N, especially NH x .

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Section: Nutrient Concentrationssupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dry and wet atmospheric deposition of nitrogen, phosphorus and silicon in an agricultural region

Anderson

Downing

2006

Water Air Soil Pollut

142

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“…The Yangzonghai Lake watershed was 44.7 t yr −1 , accounting for 6.2 % of the total in 2010. In the studies of the Lake Simcoe in Canada, Winter et al [20] found that P from atmospheric deposition accounted for 23-56 %. Yang et al [21] studied the P contributed by atmospheric deposition in Tai Lake, China, and found that the P load from atmospheric deposition accounted for 46.2 % of the total load.…”

Section: P Input Fluxes Of Watershed and Lakementioning

confidence: 99%

Watershed-Scale Phosphorus Balance Evaluation Using a Mass Balance Method

Liu

Yang

et al. 2016

Geo-Informatics in Resource Management and Sustainable Ecosystem

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Abstract. It is crucial for assessing the eutrophication risk of lake by analyzing the phosphorus (P) balance of lake watershed quantitively. A mass balance method was used to calculate P balance of both Yangzonghai lake watershed and the lake itself in one year. The imported P load was 725.1 t in 2010, while the exported P load was 317.3 t, which indicated that 56.2 % (407.8 t yr −1 ) of P was retained in the lake watershed. Such a high retention load implied that the lake, which was mesotrophic, was under great pressure of further eutrophication. Among all the input pathways, the largest P input contributor was fertilizer, contributing 679.0 t P and accounting for 93.6 % of input P, followed by atmospheric deposition (44.7 t P, 6.2 %). Plant product (264.6 t, 83.4 %) was the largest P output contributor, followed by animal products (50.2 t, 15.8 %).

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“…Bergametti et al (1992) found a higher deposition rate (about 0.4 kg P/ha) in the island of Corsica (northwestern Mediterranean) and Dammagen et al (1994) reported TP annual bulk deposition of 0.68 kg/ha in south Germany grassland ecosystems. As shown by Winter et al (2002), atmospheric deposition was the largest source in annual TP budget of Lake Simcoe (Canada), and amounted 0.56 kg/ha.…”

mentioning

confidence: 98%

Is the atmosphere an important source of phosphorus in northern Poland?

Jarosiewicz

Witek

2016

Soil & Water Res.

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Jarosiewicz A., Witek Z. (2016): Is the atmosphere an important source of phosphorus in northern Poland? Soil & Water Res., In this paper we determined the phosphorus (P) concentration in precipitation, and calculated the annual P deposition rate at three study sites located in northern Poland. We observed that the mean annual volume-weighted concentration of mineral phosphorus (P min ) in wet deposition varies from site to site. The estimated annual wet deposition rate of P min in the study region amounted from 0.1 to 0.39 kg/ha. The concentration and deposition rate of P min in the southern part of the study region was significantly lower than that in the northern and central part. We detected that the P min deposition was strongly positively correlated with the fraction of arable land in the study site vicinity, and also positively correlated with the mineral P fertilizer consumption in the area. The mean annual volume-weighted concentration of P min in wet deposition varied from 0.015 mg/l in the area of the lowest arable land percentage and the lowest mineral fertilizer consumption, to 0.046 mg/l in the area where the arable lands comprise 84% of agricultural land, and mineral P fertilizer consumption exceeded 33 kg/ha. In the P soil surface balance the atmospheric wet deposition represents 2.1-5.6% of annual total inputs of total P. The level of atmospheric P input varies widely by catchment and is related to land use (fertilizing, intensity and type of crop production).

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Total Phosphorus Budgets and Nitrogen Loads: Lake Simcoe, Ontario (1990 to 1998)

Cited by 57 publications

References 23 publications

Dry and wet atmospheric deposition of nitrogen, phosphorus and silicon in an agricultural region

Dry and wet atmospheric deposition of nitrogen, phosphorus and silicon in an agricultural region

Watershed-Scale Phosphorus Balance Evaluation Using a Mass Balance Method

Is the atmosphere an important source of phosphorus in northern Poland?

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