Details
| Original language | English |
|---|---|
| Pages (from-to) | 273-285 |
| Number of pages | 13 |
| Journal | Plant ecology |
| Volume | 184 |
| Issue number | 2 |
| Early online date | 8 Dec 2005 |
| Publication status | Published - Jun 2006 |
Abstract
The chemical composition of rainwater is altered upon its passage through tree canopies. In order to investigate how rainwater chemistry is affected by canopy-dependent processes in characteristic forest types of Northwest German sandy lowland regions - oak-birch-forests, Betula pubescens Ehrh. swamp forests, and stands of Pinus sylvestris L. - comparative studies on the chemical composition of throughfall were carried out at seven forest sites, situated in close proximity within a nature reserve. Additionally, rainwater was sampled at three heathland sites for analysis of open-field precipitation and at three sites along an oak-birch-forest edge. Throughfall concentrations of most of the parameters analysed were significantly higher than open-field concentrations, especially with regard to electric conductivity, NH4-N, K +, and KMnO4-index. Ion concentrations in throughfall were the lowest in a 10-year-old stand of Betula pendula Roth. and Pinus sylvestris and in a Betula pubescens swamp forest and were highest beneath a stand of Pinus sylvestris. Except for Na+, Cl-, and NO 3 - , ion concentrations in both throughfall and open-field precipitation increased during the growing season (May-October). In throughfall, Ca2+, Mg2+, K+, and Mn2+ were strongly correlated. Enrichment ratios between throughfall and open-field deposition varied among sites and elements and were the highest for K ‰+, Mg2‰+, and Mn2‰+. Estimates of canopy leaching indicated high leaching rates of K ‰+ and Mn2‰+ and moderate leaching of Mg2‰+. The contribution of foliar leaching to throughfall deposition was higher at the deciduous than at the coniferous stands.
Keywords
- Betula pubescens swamp forest, Foliar leaching, Oak-birch-forests, Rainwater chemistry, Stands of Pinus sylvestris
ASJC Scopus subject areas
- Environmental Science(all)
- Ecology
- Agricultural and Biological Sciences(all)
- Plant Science
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In: Plant ecology, Vol. 184, No. 2, 06.2006, p. 273-285.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - The chemical composition of throughfall beneath oak, birch and pine canopies in Northwest Germany
AU - Herrmann, Martina
AU - Pust, Jürgen
AU - Pott, Richard
PY - 2006/6
Y1 - 2006/6
N2 - The chemical composition of rainwater is altered upon its passage through tree canopies. In order to investigate how rainwater chemistry is affected by canopy-dependent processes in characteristic forest types of Northwest German sandy lowland regions - oak-birch-forests, Betula pubescens Ehrh. swamp forests, and stands of Pinus sylvestris L. - comparative studies on the chemical composition of throughfall were carried out at seven forest sites, situated in close proximity within a nature reserve. Additionally, rainwater was sampled at three heathland sites for analysis of open-field precipitation and at three sites along an oak-birch-forest edge. Throughfall concentrations of most of the parameters analysed were significantly higher than open-field concentrations, especially with regard to electric conductivity, NH4-N, K +, and KMnO4-index. Ion concentrations in throughfall were the lowest in a 10-year-old stand of Betula pendula Roth. and Pinus sylvestris and in a Betula pubescens swamp forest and were highest beneath a stand of Pinus sylvestris. Except for Na+, Cl-, and NO 3 - , ion concentrations in both throughfall and open-field precipitation increased during the growing season (May-October). In throughfall, Ca2+, Mg2+, K+, and Mn2+ were strongly correlated. Enrichment ratios between throughfall and open-field deposition varied among sites and elements and were the highest for K ‰+, Mg2‰+, and Mn2‰+. Estimates of canopy leaching indicated high leaching rates of K ‰+ and Mn2‰+ and moderate leaching of Mg2‰+. The contribution of foliar leaching to throughfall deposition was higher at the deciduous than at the coniferous stands.
AB - The chemical composition of rainwater is altered upon its passage through tree canopies. In order to investigate how rainwater chemistry is affected by canopy-dependent processes in characteristic forest types of Northwest German sandy lowland regions - oak-birch-forests, Betula pubescens Ehrh. swamp forests, and stands of Pinus sylvestris L. - comparative studies on the chemical composition of throughfall were carried out at seven forest sites, situated in close proximity within a nature reserve. Additionally, rainwater was sampled at three heathland sites for analysis of open-field precipitation and at three sites along an oak-birch-forest edge. Throughfall concentrations of most of the parameters analysed were significantly higher than open-field concentrations, especially with regard to electric conductivity, NH4-N, K +, and KMnO4-index. Ion concentrations in throughfall were the lowest in a 10-year-old stand of Betula pendula Roth. and Pinus sylvestris and in a Betula pubescens swamp forest and were highest beneath a stand of Pinus sylvestris. Except for Na+, Cl-, and NO 3 - , ion concentrations in both throughfall and open-field precipitation increased during the growing season (May-October). In throughfall, Ca2+, Mg2+, K+, and Mn2+ were strongly correlated. Enrichment ratios between throughfall and open-field deposition varied among sites and elements and were the highest for K ‰+, Mg2‰+, and Mn2‰+. Estimates of canopy leaching indicated high leaching rates of K ‰+ and Mn2‰+ and moderate leaching of Mg2‰+. The contribution of foliar leaching to throughfall deposition was higher at the deciduous than at the coniferous stands.
KW - Betula pubescens swamp forest
KW - Foliar leaching
KW - Oak-birch-forests
KW - Rainwater chemistry
KW - Stands of Pinus sylvestris
UR - http://www.scopus.com/inward/record.url?scp=33745711969&partnerID=8YFLogxK
U2 - 10.1007/s11258-005-9072-5
DO - 10.1007/s11258-005-9072-5
M3 - Article
AN - SCOPUS:33745711969
VL - 184
SP - 273
EP - 285
JO - Plant ecology
JF - Plant ecology
SN - 1385-0237
IS - 2
ER -