Impact of harvest intensity on long-term base cation budgets in Swedish forest soils
(2007) In Water, Air, & Soil Pollution: Focus 7(1). p.201-210- Abstract
- Abstract in Undetermined
The effects of harvesting on the long-term mass balances of calcium (Ca), magnesium (Mg) and potassium (K) were evaluated on a regional level in Sweden. A new high-resolution weathering database was used together with estimates of total deposition, losses through harvest and leaching. Estimates were made for pine and spruce separately and for two harvesting intensity scenarios: stem harvesting and whole-tree harvesting. The mass balance calculations showed net losses of Ca and Mg in almost the whole country for both scenarios. The losses were smaller for pine than for spruce. The K balances were mainly positive for pine but negative for spruce. Leaching was a main factor in the mass balances, especially for Ca... (More) - Abstract in Undetermined
The effects of harvesting on the long-term mass balances of calcium (Ca), magnesium (Mg) and potassium (K) were evaluated on a regional level in Sweden. A new high-resolution weathering database was used together with estimates of total deposition, losses through harvest and leaching. Estimates were made for pine and spruce separately and for two harvesting intensity scenarios: stem harvesting and whole-tree harvesting. The mass balance calculations showed net losses of Ca and Mg in almost the whole country for both scenarios. The losses were smaller for pine than for spruce. The K balances were mainly positive for pine but negative for spruce. Leaching was a main factor in the mass balances, especially for Ca and Mg. Whole-tree harvesting in spruce forests led to substantially higher net losses of K and Ca than stem harvesting, according to the calculations. In the whole-tree harvesting scenario in spruce forests the estimated yearly net losses of Ca, Mg and K corresponded to at least 5%, 8% and 3% of the pools of exchangeable base cations, respectively, at 25% of the analysed sites. If losses of this magnitude continue the depletion of the pools of Ca, Mg and K may lead to very low base saturation of the soils, possibly accompanied by negative effects on soil fertility, runoff water quality, tree vitality and tree growth within a forest rotation in parts of Sweden. Avoiding whole-tree harvesting can improve the situation substantially for K, but the losses of Ca and Mg will still be significant. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1745959
- author
- Akselsson, Cecilia LU ; Olle, Westling ; Sverdrup, Harald LU ; Holmqvist, Johan LU ; Thelin, Gunnar LU ; Uggla, Eva and Malm, Gunnar
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Water, Air, & Soil Pollution: Focus
- volume
- 7
- issue
- 1
- pages
- 201 - 210
- publisher
- Springer
- external identifiers
-
- scopus:34247565044
- ISSN
- 1573-2940
- DOI
- 10.1007/s11267-006-9106-6
- language
- English
- LU publication?
- yes
- id
- 9811c1b8-4b2f-47bd-a55c-7d889f9aa1d6 (old id 1745959)
- date added to LUP
- 2016-04-01 16:45:24
- date last changed
- 2023-11-29 06:06:36
@article{9811c1b8-4b2f-47bd-a55c-7d889f9aa1d6,
abstract = {{Abstract in Undetermined<br/>The effects of harvesting on the long-term mass balances of calcium (Ca), magnesium (Mg) and potassium (K) were evaluated on a regional level in Sweden. A new high-resolution weathering database was used together with estimates of total deposition, losses through harvest and leaching. Estimates were made for pine and spruce separately and for two harvesting intensity scenarios: stem harvesting and whole-tree harvesting. The mass balance calculations showed net losses of Ca and Mg in almost the whole country for both scenarios. The losses were smaller for pine than for spruce. The K balances were mainly positive for pine but negative for spruce. Leaching was a main factor in the mass balances, especially for Ca and Mg. Whole-tree harvesting in spruce forests led to substantially higher net losses of K and Ca than stem harvesting, according to the calculations. In the whole-tree harvesting scenario in spruce forests the estimated yearly net losses of Ca, Mg and K corresponded to at least 5%, 8% and 3% of the pools of exchangeable base cations, respectively, at 25% of the analysed sites. If losses of this magnitude continue the depletion of the pools of Ca, Mg and K may lead to very low base saturation of the soils, possibly accompanied by negative effects on soil fertility, runoff water quality, tree vitality and tree growth within a forest rotation in parts of Sweden. Avoiding whole-tree harvesting can improve the situation substantially for K, but the losses of Ca and Mg will still be significant.}},
author = {{Akselsson, Cecilia and Olle, Westling and Sverdrup, Harald and Holmqvist, Johan and Thelin, Gunnar and Uggla, Eva and Malm, Gunnar}},
issn = {{1573-2940}},
language = {{eng}},
number = {{1}},
pages = {{201--210}},
publisher = {{Springer}},
series = {{Water, Air, & Soil Pollution: Focus}},
title = {{Impact of harvest intensity on long-term base cation budgets in Swedish forest soils}},
url = {{http://dx.doi.org/10.1007/s11267-006-9106-6}},
doi = {{10.1007/s11267-006-9106-6}},
volume = {{7}},
year = {{2007}},
}