Microbial biomass, microbial diversity, soil carbon storage, and stability after incubation of soil from grass-clover pastures of different age
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Microbial biomass, microbial diversity, soil carbon storage, and stability after incubation of soil from grass-clover pastures of different age. / Müller-Stöver, Dorette; Hauggaard-Nielsen, Henrik; Eriksen, Jørgen; Ambus, Per Lennart; Johansen, Anders.
In: Biology and Fertility of Soils, Vol. 48, No. 4, 05.2012, p. 371-383.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Microbial biomass, microbial diversity, soil carbon storage, and stability after incubation of soil from grass-clover pastures of different age
AU - Müller-Stöver, Dorette
AU - Hauggaard-Nielsen, Henrik
AU - Eriksen, Jørgen
AU - Ambus, Per Lennart
AU - Johansen, Anders
PY - 2012/5
Y1 - 2012/5
N2 - A laboratory incubation study with clover grass pasture soils of seven different ages (0, 1, 2, 3, 4, 5, and 16 production years) was carried out to determine initial soil carbon (C) and nitrogen (N) stocks and potentials for greenhouse gas emissions (N 2O and CO 2). Compared with the soil from the recently established pasture, an increase of total soil C and N was observed along with pasture age. Greenhouse gas emissions were low and not significantly different among the soils from younger pastures (0-5 years), but especially N 2O emissions increased markedly in the soil from 16-year-old grass-clover. Low emissions might mainly be due to an early C limitation occurring in the soils from younger pastures, which was also corroborated by decreasing levels of cold water-extractable C and early shifts within the microbial community. However, higher emissions from the old pasture soil were offset by its increase in total soil C. A longer ley phase without soil disturbance may therefore be beneficial in terms of overall C sequestration in systems with temporary grass-clover swards.
AB - A laboratory incubation study with clover grass pasture soils of seven different ages (0, 1, 2, 3, 4, 5, and 16 production years) was carried out to determine initial soil carbon (C) and nitrogen (N) stocks and potentials for greenhouse gas emissions (N 2O and CO 2). Compared with the soil from the recently established pasture, an increase of total soil C and N was observed along with pasture age. Greenhouse gas emissions were low and not significantly different among the soils from younger pastures (0-5 years), but especially N 2O emissions increased markedly in the soil from 16-year-old grass-clover. Low emissions might mainly be due to an early C limitation occurring in the soils from younger pastures, which was also corroborated by decreasing levels of cold water-extractable C and early shifts within the microbial community. However, higher emissions from the old pasture soil were offset by its increase in total soil C. A longer ley phase without soil disturbance may therefore be beneficial in terms of overall C sequestration in systems with temporary grass-clover swards.
KW - Carbon dioxide
KW - Grass-clover
KW - Nitrous oxide
KW - Pasture age
KW - Soil carbon sequestration
UR - http://www.scopus.com/inward/record.url?scp=84859764918&partnerID=8YFLogxK
U2 - 10.1007/s00374-011-0633-6
DO - 10.1007/s00374-011-0633-6
M3 - Journal article
AN - SCOPUS:84859764918
VL - 48
SP - 371
EP - 383
JO - Biology and Fertility of Soils
JF - Biology and Fertility of Soils
SN - 0178-2762
IS - 4
ER -
ID: 162182335