Re-sampling of carbon stocks in forest soils and afforestation areas after 18 years – results from the 7x7 km Kvadratnet in Denmark

Ingeborg Callesen; Lars Vesterdal; Inge Stupak; Petros Georgiadis; Vivian Kvist Johannsen

Re-sampling of carbon stocks in forest soils and afforestation areas after 18 years – results from the 7x7 km Kvadratnet in Denmark

Ingeborg Callesen, Lars Vesterdal, Inge Stupak, Petros Georgiadis, Vivian Kvist Johannsen

Forest, Nature and Biomass

Abstract

Forest soil plots (N=112) of the size 50x50 meter were sampled in 1989-90 (C1) and re-sampled in 2007-9 (C2) by soil auger, producing composite samples from the depths 0-25, 25-50, 50-75 and 75-100 cm. The soils were classified according to the carbon concentration in the uppermost mineral soil horizon (0-25 cm) at C1. Soils with less than 1.8% carbon gained carbon during the 18 yr period, while initially very carbon rich (4<C%<12) mineral soils and organic soils (C%>12) lost carbon. We hypothesize that the carbon losses reflect a very slow process of adaptation to the current more aerobic drainage regime of soils that were frequently water saturated in previous centuries. It was also hypothesized that carbon gains in soils with a low or intermediate carbon stock, typical of well-drained soils, reflected the favorable, high precipitation conditions during the monitoring period, allowing especially base rich loamy soils to take full advantage of the nitrogen deposition and CO2 fertilization effects.

Original language	English
Publication date	2013
Number of pages	1
Publication status	Published - 2013
Event	SOIL CARBON SEQUESTRATION, for climate, food security and ecosystem services - Reykjavik, Iceland Duration: 26 May 2013 → 29 May 2013

Conference

Conference	SOIL CARBON SEQUESTRATION, for climate, food security and ecosystem services
Country/Territory	Iceland
City	Reykjavik
Period	26/05/2013 → 29/05/2013

Access to Document

http://scs2013.land.is/wp-content/uploads/2013/07/A0_poster_Callesen_SCS_uk.pdf

Cite this

Callesen, I., Vesterdal, L., Stupak, I., Georgiadis, P., & Johannsen, V. K. (2013). Re-sampling of carbon stocks in forest soils and afforestation areas after 18 years – results from the 7x7 km Kvadratnet in Denmark. Poster session presented at SOIL CARBON SEQUESTRATION, for climate, food security and ecosystem services , Reykjavik, Iceland. http://scs2013.land.is/wp-content/uploads/2013/07/A0_poster_Callesen_SCS_uk.pdf

Re-sampling of carbon stocks in forest soils and afforestation areas after 18 years – results from the 7x7 km Kvadratnet in Denmark. / Callesen, Ingeborg ; Vesterdal, Lars ; Stupak, Inge et al.
2013. Poster session presented at SOIL CARBON SEQUESTRATION, for climate, food security and ecosystem services , Reykjavik, Iceland.

Research output: Contribution to conference › Poster › Research

Callesen, I , Vesterdal, L , Stupak, I, Georgiadis, P & Johannsen, VK 2013, 'Re-sampling of carbon stocks in forest soils and afforestation areas after 18 years – results from the 7x7 km Kvadratnet in Denmark', SOIL CARBON SEQUESTRATION, for climate, food security and ecosystem services , Reykjavik, Iceland, 26/05/2013 - 29/05/2013. <http://scs2013.land.is/wp-content/uploads/2013/07/A0_poster_Callesen_SCS_uk.pdf>

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title = "Re-sampling of carbon stocks in forest soils and afforestation areas after 18 years – results from the 7x7 km Kvadratnet in Denmark",

abstract = "Forest soil plots (N=112) of the size 50x50 meter were sampled in 1989-90 (C1) and re-sampled in 2007-9 (C2) by soil auger, producing composite samples from the depths 0-25, 25-50, 50-75 and 75-100 cm. The soils were classified according to the carbon concentration in the uppermost mineral soil horizon (0-25 cm) at C1. Soils with less than 1.8% carbon gained carbon during the 18 yr period, while initially very carbon rich (412) lost carbon. We hypothesize that the carbon losses reflect a very slow process of adaptation to the current more aerobic drainage regime of soils that were frequently water saturated in previous centuries. It was also hypothesized that carbon gains in soils with a low or intermediate carbon stock, typical of well-drained soils, reflected the favorable, high precipitation conditions during the monitoring period, allowing especially base rich loamy soils to take full advantage of the nitrogen deposition and CO2 fertilization effects. ",

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AU - Georgiadis, Petros

AU - Johannsen, Vivian Kvist

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N2 - Forest soil plots (N=112) of the size 50x50 meter were sampled in 1989-90 (C1) and re-sampled in 2007-9 (C2) by soil auger, producing composite samples from the depths 0-25, 25-50, 50-75 and 75-100 cm. The soils were classified according to the carbon concentration in the uppermost mineral soil horizon (0-25 cm) at C1. Soils with less than 1.8% carbon gained carbon during the 18 yr period, while initially very carbon rich (412) lost carbon. We hypothesize that the carbon losses reflect a very slow process of adaptation to the current more aerobic drainage regime of soils that were frequently water saturated in previous centuries. It was also hypothesized that carbon gains in soils with a low or intermediate carbon stock, typical of well-drained soils, reflected the favorable, high precipitation conditions during the monitoring period, allowing especially base rich loamy soils to take full advantage of the nitrogen deposition and CO2 fertilization effects.

AB - Forest soil plots (N=112) of the size 50x50 meter were sampled in 1989-90 (C1) and re-sampled in 2007-9 (C2) by soil auger, producing composite samples from the depths 0-25, 25-50, 50-75 and 75-100 cm. The soils were classified according to the carbon concentration in the uppermost mineral soil horizon (0-25 cm) at C1. Soils with less than 1.8% carbon gained carbon during the 18 yr period, while initially very carbon rich (412) lost carbon. We hypothesize that the carbon losses reflect a very slow process of adaptation to the current more aerobic drainage regime of soils that were frequently water saturated in previous centuries. It was also hypothesized that carbon gains in soils with a low or intermediate carbon stock, typical of well-drained soils, reflected the favorable, high precipitation conditions during the monitoring period, allowing especially base rich loamy soils to take full advantage of the nitrogen deposition and CO2 fertilization effects.

M3 - Poster

T2 - SOIL CARBON SEQUESTRATION, for climate, food security and ecosystem services

Y2 - 26 May 2013 through 29 May 2013

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