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Statements

Subject Item
n2:RIV%2F00027073%3A_____%2F12%3A%230001309%21RIV13-MZP-00027073
rdf:type
n15:Vysledek skos:Concept
rdfs:seeAlso
http://link.springer.com/article/10.1007%2Fs11270-011-0975-6#
dcterms:description
Two large-scale national monitoring campaigns investigating changes in spruce bark extract acidity and long-term monitoring of bark acidity along elevation transects have been carried out in the Czech Republic. The investigations have revealed significant average changes in the pH values of bark extracts (4 g: 16 ml) from 2.35 to 2.60 between 1989 and 1995, and from 2.60 to 3.25 between 1995 and 2005. In comparison with 1990, the H+ concentrations in bark extracts had decreased by 10-15% in 1995 and by 70% in 2005. National emissions of acidic compounds were reduced by about 58% (1995) and 62% (2005), and the mean annual H+ deposition was reduced by about 60% (1995) and by about 80% (2005). However, neither inventoried current absolute amounts nor specific regional amounts of emitted acidic pollutants correlated significantly with bark acidity in 1995 and 2005. Bark acidity was not significantly affected by the elevation of the sampling plots or by the average tree defoliation. Along the altitudinal transects, considerably defoliated trees near the top of mountain ridges showed permanently lower bark acidity than trees lower down the mountain slopes. Significant differences in average bark acidity were found between defined mountain, highland and lowland elevation zones. In 2005, the epiphytic lichen Hypogymnia physodes was found at almost all sampling plots, with the exception of the most industrialised areas of two coal basins. The abundance of the lichen correlated significantly and negatively with spruce bark acidity and with total nitrogen and copper concentrations in moss growing at the bark sampling plots in 2005. Two large-scale national monitoring campaigns investigating changes in spruce bark extract acidity and long-term monitoring of bark acidity along elevation transects have been carried out in the Czech Republic. The investigations have revealed significant average changes in the pH values of bark extracts (4 g: 16 ml) from 2.35 to 2.60 between 1989 and 1995, and from 2.60 to 3.25 between 1995 and 2005. In comparison with 1990, the H+ concentrations in bark extracts had decreased by 10-15% in 1995 and by 70% in 2005. National emissions of acidic compounds were reduced by about 58% (1995) and 62% (2005), and the mean annual H+ deposition was reduced by about 60% (1995) and by about 80% (2005). However, neither inventoried current absolute amounts nor specific regional amounts of emitted acidic pollutants correlated significantly with bark acidity in 1995 and 2005. Bark acidity was not significantly affected by the elevation of the sampling plots or by the average tree defoliation. Along the altitudinal transects, considerably defoliated trees near the top of mountain ridges showed permanently lower bark acidity than trees lower down the mountain slopes. Significant differences in average bark acidity were found between defined mountain, highland and lowland elevation zones. In 2005, the epiphytic lichen Hypogymnia physodes was found at almost all sampling plots, with the exception of the most industrialised areas of two coal basins. The abundance of the lichen correlated significantly and negatively with spruce bark acidity and with total nitrogen and copper concentrations in moss growing at the bark sampling plots in 2005.
dcterms:title
Temporal and Spatial Changes in Spruce Bark Acidity at the Scale of the Czech Republic in the Last Two Decades, and the Current Abundance of Epiphytic Lichen Hypogymnia physodes Temporal and Spatial Changes in Spruce Bark Acidity at the Scale of the Czech Republic in the Last Two Decades, and the Current Abundance of Epiphytic Lichen Hypogymnia physodes
skos:prefLabel
Temporal and Spatial Changes in Spruce Bark Acidity at the Scale of the Czech Republic in the Last Two Decades, and the Current Abundance of Epiphytic Lichen Hypogymnia physodes Temporal and Spatial Changes in Spruce Bark Acidity at the Scale of the Czech Republic in the Last Two Decades, and the Current Abundance of Epiphytic Lichen Hypogymnia physodes
skos:notation
RIV/00027073:_____/12:#0001309!RIV13-MZP-00027073
n15:predkladatel
n20:ico%3A00027073
n3:aktivita
n7:Z
n3:aktivity
Z(MZP0002707301)
n3:cisloPeriodika
4
n3:dodaniDat
n17:2013
n3:domaciTvurceVysledku
n14:7552335
n3:druhVysledku
n16:J
n3:duvernostUdaju
n4:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
173728
n3:idVysledku
RIV/00027073:_____/12:#0001309
n3:jazykVysledku
n19:eng
n3:klicovaSlova
Norway spruce; Bark extract pH; Decrease in acidity; Hypogymnia physodes abundance; Explanatory variables
n3:klicoveSlovo
n6:Hypogymnia%20physodes%20abundance n6:Bark%20extract%20pH n6:Explanatory%20variables n6:Decrease%20in%20acidity n6:Norway%20spruce
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[97CA41ACF4E7]
n3:nazevZdroje
Water, Air & Soil Pollution
n3:obor
n13:DI
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:rokUplatneniVysledku
n17:2012
n3:svazekPeriodika
223
n3:tvurceVysledku
Suchara, Ivan
n3:wos
000303385800020
n3:zamer
n10:MZP0002707301
s:issn
0049-6979
s:numberOfPages
13
n11:doi
10.1007/s11270-011-0975-6