HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Sommer, S. G. Articles by Søgaard, H. T. Search for Related Content PubMed Articles by Sommer, S. G. Articles by Søgaard, H. T. Agricola Articles by Sommer, S. G. Articles by Søgaard, H. T.

Greenhouse Gas Emission from Stored Livestock Slurry

Dep. of Agricultural Engineering, Danish Inst. of Agricultural Sciences, Research Centre Bygholm, P.O. Box 536, DK-8700 Horsens, Denmark.
Dep. of Crop Physiology and Soil Science, Danish Inst. of Agricultural Sciences, Research Centre Foulum, P.O. Box 50, DK-8830 Tjele, Denmark.

^* Corresponding author (SvenG.Sommer{at}agrsci.dk).

ABSTRACT

Animal manure contributes about 40% of the total methane (CH₄) and 20% of the total nitrous oxide (N₂O) emissions in Denmark. We measured the CH₄ and N₂O emissions from stored cattle slurry and fermented slurry during fall 1996 and summer 1997 and evaluated the effect of surface covers consisting of straw, floating leca pebbles, or a natural surface crust on the patterns of these emissions. No emission of N₂O was measured during periods with more rain than evaporation from the slurry stores and no emission was measured from uncovered slurry, irrespective of climatic conditions. During the summer storage with drying conditions, N₂O emissions of up to 25 mg N m^–2 h^–1 were recorded from slurry with surface covers. Total N₂O emission was highest from digested slurry. The emission of CH₄ from stored fermented slurry and cattle slurry varied between <0.01 and 1.4 or 0.7 g CH₄—C m^–3 h^–1, respectively. The log-transformed emissions were linearly related to the inverse temperature. Emission of CH₄ was reduced, on average, by 38% with surface covers. The reduction was probably due to CH₄ oxidation in the surface covers or in the interface between the cover and liquid in the store. Fermentation did not reduce CH₄ emissions during storage of the slurry.

This article has been cited by other articles:

				T. L. Hansen, S. G. Sommer, S. Gabriel, and T. H. Christensen Methane Production during Storage of Anaerobically Digested Municipal Organic Waste J. Environ. Qual., April 3, 2006; 35(3): 830 - 836. [Abstract] [Full Text] [PDF]

				T. H. Misselbrook, S. K. E. Brookman, K. A. Smith, T. Cumby, A. G. Williams, and D. F. McCrory Crusting of Stored Dairy Slurry to Abate Ammonia Emissions: Pilot-Scale Studies J. Environ. Qual., March 1, 2005; 34(2): 411 - 419. [Abstract] [Full Text] [PDF]

				S. O. Petersen, B. Amon, and A. Gattinger Methane Oxidation in Slurry Storage Surface Crusts J. Environ. Qual., March 1, 2005; 34(2): 455 - 461. [Abstract] [Full Text] [PDF]

				A. Ogino, K. Kaku, T. Osada, and K. Shimada Environmental impacts of the Japanese beef-fattening system with different feeding lengths as evaluated by a life-cycle assessment method J Anim Sci, July 1, 2004; 82(7): 2115 - 2122. [Abstract] [Full Text] [PDF]