+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Trends and seasonal patterns of bulk deposition of nutrients in the Czech Republic

, : Trends and seasonal patterns of bulk deposition of nutrients in the Czech Republic. Atmospheric Environment 31(6): 797-808

Precipitation samples were collected in three-week periods at two sites (site I, Slapy Reservoir and site II, Rimov Reservoir) in the Czech Republic from 1979 to 1994. Chemical composition with an emphasis on concentrations and deposition rates of nutrients were evaluated on seasonal, annual, and long-term basis. Long-range transport dominated the atmospheric deposition at site I, whereas local sources were relatively more important at site II. The average annual bulk deposition rates were 10 and 14 kg ha-1 for total nitrogen (TN), 0.15 and 0.24 kg ha-1 for total phosphorus (TP), and 17 and 20 kg ha-1 for organic carbon at sites I and II, respectively. NH-4-N was the major component of TN ( gt 40%), NO-3-N represented apprx 35%, and organic nitrogen contributed by apprx 23% to the TN deposition. Concentrations and deposition rates of nutrients showed pronounced annual cycles; concentrations reached the maximum values in late winter and early spring, deposition rates from April to August. These cycles are explained by the seasonality of both precipitation and nutrient sources (agriculture, residential heating sources, pollen, soil dust). The concentrations and/or deposition rates of NH-4-N and NO-3-N doubled and more than tripled, respectively, in the Czech Republic between 1958 and the mid-1980s. The concentrations and deposition rates of sulphate decreased at site I already in the 1980s, probably as a result of the general trend of decreasing sulphur emission in Europe, while this trend was surpassed by local sources at site II. However, a sharp decline in both N and S concentrations and deposition rates occurred in the early 1990s, due to the reduced emissions of ammonia, NO-x, and SO-2 in Central European post-communist countries after the 1989 political and economical changes.


DOI: 10.1016/s1352-2310(96)00261-0

Other references

Liu, J-Ming.; Rao, Y.; Chen, L.; Wang, X-Xing.; Lin, L-Ping.; Lin, C-Qing.; Zhang, L-Hong.; Ou-Yang, Y., 2011: A new phosphorimetry for the determination of trace alkaline phosphatase using multi-wall carbon nanotubes and its diagnosis of human diseases. Multi-wall carbon nanotubes (MWNTs) could be modified as water soluble MWNTs (it was called as MWNTs-A and MWNTs-B) by chemical methods. MWNTs-A and MWNTs-B could emit room temperature phosphorescence (RTP) signal on the surface of nitrocellulose...

Anonymous, 1963: Which Contraceptive?. British Medical Journal 2(5368): 1284-1284

Janz, S.; Brede, O.; Müller, J., 1991: The reaction of pristane (2,6,10,14-tetramethylpentadecane) with radiolytically generated reactive oxygen intermediates results in a stable genotoxic compound as assessed by the SOS chromotest. The most widely studied model of plasmacytomagenesis is the induction of plasmacytomas in BALB/c mice by i.p. injections of the isoalkane pristane (2,6,10,14-tetramethylpentadecane). Employing a simple quantitative and well-established short-term...

Batchelor, C., 1994: Accidents: trouble in store. Nursing Times 90(1): 48-49

Meissner R., 1981: Plate tectonics and a thermal motor for planets. Jahrestagung der Deutschen Geophysikalischen Gesellschaft e: ; Pages 185. 1981.

Winberg, J., 1991: Is routine circumcision advised in boys with obstructive uropathy in order to prevent urinary tract infection?. Pediatric Nephrology 5(2): 178-178

Berek, K.; Margreiter, J.; Willeit, J.; Berek, A.; Schmutzhard, E.; Mutz, N.J., 1996: Polyneuropathies in critically ill patients: a prospective evaluation. To determine the incidence, severity and course of polyneuropathies in patients with sepsis or systemic inflammatory response syndrome combined with multiple organ failure. Prospective study. Division of Intensive Care Medicine of the Department o...

Metz, H., 1969: Some rare forms of cerebral attacks in children. Munchener Medizinische Wochenschrift 111(36): 1819-1820

Taubert, H.; Würl, P.; Meye, A.; Bache, M.; Kroll, J.; Lautenschläger, C.; Thamm, B.; Holzhausen, H.J.; Hinze, R.; Schmidt, H.; Berger, D.; Rath, F.W., 1999: Frequency, distribution and prognostic relevance of p53 mutations in soft tissue sarcomas. Soft tissue sarcomas although rarely occurring (about 1% of malignant tumors), are because of their histo-morphological diversity and often similar appearance to tumor-like lesions difficult to characterize and estimate in their tumor biological b...

Hernandez, C.R.; Howard, F.M., 1998: Management of tubal prolapse after hysterectomy. Uterine tube prolapse into the vaginal vault is an uncommon complication after hysterectomy, and our 6 patients bring to 90 the number of cases reported in the literature. Symptoms consist almost exclusively of vaginal bloody discharge and/or leuk...