Impact of raw pig slurry and pig farming practices on physicochemical parameters and on atmospheric N2O and CH4 emissions of tropical soils, Uvéa Island (South Pacific)

Emissions of CH 4 and N 2 O related to private pig farming under a tropical climate in Uvéa Island were studied in this paper. Physicochemical soil parameters such as nitrate, nitrite, ammonium, Kjeldahl nitrogen, total organic carbon, pH and moisture were measured. Gaseous soil emissions as well as...

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Bibliographic Details
Published in:Environmental science and pollution research international 2014-09, Vol.21 (17), p.10022-10035
Main Authors: Roth, E., Gunkel-Grillon, P., Joly, L., Thomas, X., Decarpenterie, T., Mappe-Fogaing, I., Laporte-Magoni, C., Dumelié, N., Durry, G.
Format: Article
Language:English
Subjects:
Agricultural land
Agricultural pollution
Agricultural practices
Agriculture
Ammonium
Animal husbandry
Animal wastes
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Calcareous soils
Carbon
Contamination
Earth and Environmental Science
Ecotoxicology
Emission measurements
Emissions
Environment
Environmental Chemistry
Environmental Health
Environmental science
Environmental Sciences
Farm management
Farming
Farms
Groundwater
Hogs
Islands
Methane
Nitrate content
Nitrates
Nitrification
Nitrogen
Nitrous oxide
Organic carbon
Organic soils
Physicochemical properties
Pig manure
Research Article
Slurries
Soil contamination
Soils
Studies
Swine
Total organic carbon
Trace elements
Tropical environments
Waste Water Technology
Water Management
Water Pollution Control
Water supply
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Summary:Emissions of CH 4 and N 2 O related to private pig farming under a tropical climate in Uvéa Island were studied in this paper. Physicochemical soil parameters such as nitrate, nitrite, ammonium, Kjeldahl nitrogen, total organic carbon, pH and moisture were measured. Gaseous soil emissions as well as physicochemical parameters were compared in two private pig farming strategies encountered on this island on two different soils (calcareous and ferralitic) in order to determine the best pig farming management: in small concrete pens or in large land pens. Ammonium levels were higher in control areas while nitrate and nitrite levels were higher in soils with pig slurry inputs, indicating that nitrification was the predominant process related to N 2 O emissions. Nitrate contents in soils near concrete pens were important (≥55 μg N/g) and can thus be a threat for the groundwater. For both pig farming strategies, N 2 O and CH 4 fluxes can reach high levels up to 1 mg N/m 2 /h and 1 mg C/m 2 /h, respectively. CH 4 emissions near concrete pens were very high (≥10.4 mg C/m 2 /h). Former land pens converted into agricultural land recover low N 2 O emission rates (≤0.03 mg N/m 2 /h), and methane uptake dominates. N 2 O emissions were related to nitrate content whereas CH 4 emissions were found to be moisture dependent. As a result relating to the physicochemical parameters as well as to the gaseous emissions, we demonstrate that pig farming in large land pens is the best strategy for sustainable family pig breeding in Uvéa Islands and therefore in similar small tropical islands.
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-014-3048-8