Abstract
future energy use and emission reduction input scenarios are compared. The
calculations have been made with the Finnish Acidification Assessment Model
(HAKOMA) consisting of modules for emissions, emission abatement costs,
atmospheric dispersion, transformation and deposition, and impacts on forest
soils and lakes. The impact modules include time-dependent simulations of forest
soil and lake acidification processes which consider the dynamic nature of ecosystems. The existing buffering capacity and its depletion are assumed to have
ecological impacts. In forest soil acidification the depletion of the nutrient cation
inventory in soil by acid deposition and through tree harvesting is considered.
Cations are supplied by atmospheric deposition, estimated by measurements, and
mineral weathering. The distribution of soil types is estimated on the basis of the
national forest inventory. The cation contents for each soil class are derived from
measurement programmes.
The results of the pilot studies show the most critical areas regarding acidification to be in the areas of high deposition in southwestern and southeastern
Finland. To minimize the acidification, considerable emission reductions seem to
be necessary both in Finland and in the areas of high emissions in the neighbouring
countries. The results were also relatively sensitive to the parameter values in the
soil model.
| Original language | English |
|---|---|
| Title of host publication | Acidification in Finland |
| Editors | Pekka Kauppi, Pia Anttila, Kaarle Kenttämies |
| Place of Publication | Heidelberg |
| Publisher | Springer |
| Pages | 253-269 |
| ISBN (Print) | 3-540-52213-1, 0-387-52213-1 |
| Publication status | Published - 1990 |
| MoE publication type | D2 Article in professional manuals or guides or professional information systems or text book material |
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Regional Acidification Model for Forest Soils. / Johansson, Matti; Savolainen, Ilkka.
Acidification in Finland. ed. / Pekka Kauppi; Pia Anttila; Kaarle Kenttämies. Heidelberg : Springer, 1990. p. 253-269.Research output: Chapter in Book/Report/Conference proceeding › Chapter or book article › Professional
TY - CHAP
T1 - Regional Acidification Model for Forest Soils
AU - Johansson, Matti
AU - Savolainen, Ilkka
PY - 1990
Y1 - 1990
N2 - Regional model calculations of forest soil acidification in Finland for differentfuture energy use and emission reduction input scenarios are compared. Thecalculations have been made with the Finnish Acidification Assessment Model(HAKOMA) consisting of modules for emissions, emission abatement costs,atmospheric dispersion, transformation and deposition, and impacts on forestsoils and lakes. The impact modules include time-dependent simulations of forestsoil and lake acidification processes which consider the dynamic nature of ecosystems. The existing buffering capacity and its depletion are assumed to haveecological impacts. In forest soil acidification the depletion of the nutrient cationinventory in soil by acid deposition and through tree harvesting is considered.Cations are supplied by atmospheric deposition, estimated by measurements, andmineral weathering. The distribution of soil types is estimated on the basis of thenational forest inventory. The cation contents for each soil class are derived frommeasurement programmes.The results of the pilot studies show the most critical areas regarding acidification to be in the areas of high deposition in southwestern and southeasternFinland. To minimize the acidification, considerable emission reductions seem tobe necessary both in Finland and in the areas of high emissions in the neighbouringcountries. The results were also relatively sensitive to the parameter values in thesoil model.
AB - Regional model calculations of forest soil acidification in Finland for differentfuture energy use and emission reduction input scenarios are compared. Thecalculations have been made with the Finnish Acidification Assessment Model(HAKOMA) consisting of modules for emissions, emission abatement costs,atmospheric dispersion, transformation and deposition, and impacts on forestsoils and lakes. The impact modules include time-dependent simulations of forestsoil and lake acidification processes which consider the dynamic nature of ecosystems. The existing buffering capacity and its depletion are assumed to haveecological impacts. In forest soil acidification the depletion of the nutrient cationinventory in soil by acid deposition and through tree harvesting is considered.Cations are supplied by atmospheric deposition, estimated by measurements, andmineral weathering. The distribution of soil types is estimated on the basis of thenational forest inventory. The cation contents for each soil class are derived frommeasurement programmes.The results of the pilot studies show the most critical areas regarding acidification to be in the areas of high deposition in southwestern and southeasternFinland. To minimize the acidification, considerable emission reductions seem tobe necessary both in Finland and in the areas of high emissions in the neighbouringcountries. The results were also relatively sensitive to the parameter values in thesoil model.
M3 - Chapter or book article
SN - 3-540-52213-1
SN - 0-387-52213-1
SP - 253
EP - 269
BT - Acidification in Finland
A2 - Kauppi, Pekka
A2 - Anttila, Pia
A2 - Kenttämies, Kaarle
PB - Springer
CY - Heidelberg
ER -