Evaluation of Bulk Deposition in Protected Woodland Area in Western Poland

Abstract

Research on precipitation carried out systematically at the University station at Jeziory in the Wielkopolski National Park (western Poland) allowed the determination of pollutants deposited with precipitation in this forest ecosystem. During 13 years of study, the pH of precipitation was found to persist at a low level (4.33 on average), which resulted a substantial deposition of H(+). Values of acidifying and basic ions deposited in this area were determined and compared with the respective figures obtained at selected EMEP stations studying background pollution, the means for Poland, and areas subjected to considerable human impact. The use of the critical load function made it possible to establish that the S and N deposition for 2002-2005 were below its line.

Long-term changes in atmospheric depositions in Slovakia

“…This was also confirmed by our results. H + depositions, which represented acidity of rainfall, are higher in the mountains and increases with the amount of rainfall (Walna & Kurzyca 2007). Our results also support this finding.…”

“…According to Walna & Kurzyca (2007), rigid structure representation cations may indicate a stabilization of emission sources. Thöni (2008) did not find a reduction in the deposition of the elements Na, Mg, Ca and K but in Slovakia, the statistically significant changes were determined.…”

Inorganic nitrogen wet deposition: Evidence from the North-South Transect of Eastern China

“…Consequently, several research programmes have been initialed to study atmospheric N deposition in forests, such as the large-scale European NITREX (Nitrogen saturation experiment), SFONE (Swedish Forest Optimum Nutrition Experiments), and EANET (Acid deposition monitoring network in East Asia). These programmes found that "N saturation" appeared in many forests, i.e., in Poland and many parts of Europe (Fischer et al, 2007;Walna and Kurzyca, 2007). However, researches on N deposition in China have primarily focused on heavily polluted regions, and only few measurements have been conducted in forests (Fang et al, 2011;Zhao et al, 2009).…”

Reliability and comparability – crucial aspects of research on atmospheric precipitation

“…In order to do so, the use of the results of the research conducted by international network, e.g. the European Background Monitoring Network (EMEP), is recommended [60,61].…”