Effects of wood chip ash fertilization on soil chemistry in a Norway spruce plantation on a nutrient-poor soil
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Effects of wood chip ash fertilization on soil chemistry in a Norway spruce plantation on a nutrient-poor soil. / Ingerslev, Morten; Hansen, Mette; Pedersen, Lars Bo; Skov, Simon.
I: Forest Ecology and Management, Bind 334, 01.12.2014, s. 10-17.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Effects of wood chip ash fertilization on soil chemistry in a Norway spruce plantation on a nutrient-poor soil
AU - Ingerslev, Morten
AU - Hansen, Mette
AU - Pedersen, Lars Bo
AU - Skov, Simon
PY - 2014/12/1
Y1 - 2014/12/1
N2 - Harvest of forest biomass for energy production may lead to export of nutrients from the forest. Recirculation of nutrients from wood chip combustion by ash spreading in forests has been proposed as a means for counteracting the nutrient export. This study was carried out to examine the effect of wood chip ash application on soil chemistry in a 44-year-old Norway spruce (Picea abies) plantation on a nutrient-poor soil in Denmark and to investigate the effect of applying different ash types and doses. Soil samples were collected and analyzed 2.5years (3 growing seasons) after ash application. This study shows that, regardless of ash formulation, preparation or dose, application of wood ash to forest soil has a liming effect in the O-horizon manifested as an increase in CECe, BS and pH. This effect was not seen in the mineral soil within the time frame of this study. At the same time, an increase in Cd was found in the O-horizon, corresponding to the amount added in the ashes. Generally, no other increase in soil contents of the heavy metals was seen. Hardening of the wood ash did not decrease the chemical impact on the soil chemistry as compared to non-treated ash whereas an increase in ash application dose increases the liming effect.
AB - Harvest of forest biomass for energy production may lead to export of nutrients from the forest. Recirculation of nutrients from wood chip combustion by ash spreading in forests has been proposed as a means for counteracting the nutrient export. This study was carried out to examine the effect of wood chip ash application on soil chemistry in a 44-year-old Norway spruce (Picea abies) plantation on a nutrient-poor soil in Denmark and to investigate the effect of applying different ash types and doses. Soil samples were collected and analyzed 2.5years (3 growing seasons) after ash application. This study shows that, regardless of ash formulation, preparation or dose, application of wood ash to forest soil has a liming effect in the O-horizon manifested as an increase in CECe, BS and pH. This effect was not seen in the mineral soil within the time frame of this study. At the same time, an increase in Cd was found in the O-horizon, corresponding to the amount added in the ashes. Generally, no other increase in soil contents of the heavy metals was seen. Hardening of the wood ash did not decrease the chemical impact on the soil chemistry as compared to non-treated ash whereas an increase in ash application dose increases the liming effect.
KW - Bioenergy
KW - Fertilization
KW - Forest
KW - Nutrient recycling
KW - Plant nutrition
KW - Wood ash
U2 - 10.1016/j.foreco.2014.08.034
DO - 10.1016/j.foreco.2014.08.034
M3 - Journal article
AN - SCOPUS:84907541059
VL - 334
SP - 10
EP - 17
JO - Forest Ecology and Management
JF - Forest Ecology and Management
SN - 0378-1127
ER -
ID: 130115728