scholarly journals Greenhouse gas emissions from dairy manure management in a Mediterranean environment

2017 ◽  
Vol 27 (2) ◽  
pp. 545-559 ◽  
Author(s):  
Justine J. Owen ◽  
Whendee L. Silver
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Dairy Manure ◽  
Manure Management ◽  
Mediterranean Environment ◽  
Gas Emissions

Greenhouse-gas emissions from stockpiled and composted dairy-manure residues and consideration of associated emission factors

2016 ◽  
Vol 56 (9) ◽  
pp. 1432 ◽  
Author(s):  
J. Biala ◽  
N. Lovrick ◽  
D. Rowlings ◽  
P. Grace
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Emission Factors ◽  
Dairy Manure ◽  
Manure Management ◽  
N2o Emissions ◽  
Emission Rates ◽  
Low Carbon ◽  
Gas Emissions ◽  
Chicken Litter

Emissions from stockpiled pond sludge and yard scrapings were compared with composted dairy-manure residues blended with shredded vegetation residues and chicken litter over a 5-month period at a farm in Victoria (Australia). Results showed that methane emissions occurred primarily during the first 30–60 days of stockpiling and composting, with daily emission rates being highest for stockpiled pond sludge. Cumulated methane (CH4) emissions per tonne wet feedstock were highest for stockpiling of pond sludge (969 g CH4/t), followed by composting (682 g CH4/t) and stockpiling of yard scrapings (120 g CH4/t). Sizeable nitrous oxide (N2O) fluxes were observed only when temperatures inside the compost windrow fell below ~45−50°C. Cumulated N2O emissions were highest for composting (159 g N2O/t), followed by stockpiling of pond sludge (103 g N2O/t) and yard scrapings (45 g N2O/t). Adding chicken litter and lime to dairy-manure residues resulted in a very low carbon-to-nitrogen ratio (13 : 1) of the composting mix, and would have brought about significant N2O losses during composting. These field observations suggested that decisions at composting operations, as in many other businesses, are driven more by practical and economic considerations rather than efforts to minimise greenhouse-gas emissions. Total greenhouse-gas emissions (CH4 + N2O), expressed as CO2-e per tonne wet feedstock, were highest for composting (64.4 kg), followed by those for stockpiling of pond sludge (54.5 kg) and yard scraping (16.3 kg). This meant that emissions for composting and stockpiling of pond sludge exceeded the new Australian default emission factors for ‘waste composting’ (49 kg). This paper proposes to express greenhouse-gas emissions from secondary manure-management systems (e.g. composting) also as emissions per tonne wet feedstock, so as to align them with the approach taken for ‘waste composting’ and to facilitate the development of emission-reduction methodologies for improved manure management at the farm level.

Do volatile solids from bedding materials increase greenhouse gas emissions for stored dairy manure?

2017 ◽  
Author(s):  
Etienne L Le Riche ◽  
Andrew Vanderzaag ◽  
C. Wagner-Riddle ◽  
K. E. Dunfield ◽  
Vera K Sokolov ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Dairy Manure ◽  
Gas Emissions ◽  
Volatile Solids ◽  
Bedding Materials

Greenhouse Gas Emissions from an Irrigated Silt Loam Soil Amended with Anaerobically Digested Dairy Manure

2011 ◽  
Vol 75 (6) ◽  
pp. 2206-2216 ◽  
Author(s):  
H. P. Collins ◽  
A. K. Alva ◽  
J. D. Streubel ◽  
S. F. Fransen ◽  
C. Frear ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Dairy Manure ◽  
Silt Loam ◽  
Gas Emissions ◽  
Silt Loam Soil ◽  
Loam Soil ◽  
Anaerobically Digested Dairy Manure

Greenhouse gas emissions from gradually-filled liquid dairy manure storages with different levels of inoculant

2019 ◽  
Vol 115 (3) ◽  
pp. 455-467
Author(s):  
V. Sokolov ◽  
A. VanderZaag ◽  
J. Habtewold ◽  
K. Dunfield ◽  
C. Wagner-Riddle ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Dairy Manure ◽  
Gas Emissions ◽  
Different Levels

Amendments for mitigation of dairy manure ammonia and greenhouse gas emissions: Preliminary screening

2010 ◽  
Author(s):  
Eileen Fabian Wheeler ◽  
M. Arlene A Adviento-Borbe ◽  
Robin C Brandt ◽  
Patrick A Topper ◽  
Deborah A Topper ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Dairy Manure ◽  
Gas Emissions ◽  
Preliminary Screening
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