Click on “Download PDF” for the PDF version or on the title for the HTML version.

If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options.

Field Measurement of Carbon Dioxide, Methane and Nitrous oxide Emissions from Manure Stockpile and Open Exercise Yard of a Typical Dairy Farm in China by Chamber Technique

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  2015 ASABE Annual International Meeting  152171852.(doi:10.13031/aim.20152171852)
Authors:   Luyu Ding, Qikun Lu, Lina Xie, Jie Liu, Wei Cao, Zhengxiang Shi, Baoming Li, Shixi Ren, Chaoyuan Wang, Guoqiang Zhang
Keywords:   greenhouse gas emissions, dairy cow, exercise yard, manure stockpile

Abstract. In typical dairy production and management system of China, outdoor exercise yard and stockpiles play a major role in emissions of pollutants to atmosphere. GHG (CO2, CH4 and N2O) emissions from brick-paved yard and manure stockpiles of a typical dairy farm in Beijing were measured by closed chamber in four different seasons. There are cubicles in the yard and manure in the yard was removed once a day by tractor. CO2, CH4 and N2O emissions from the yard were within the range of 0.2~42 mg m-2 min-1, 1~616 ug m-2 min-1 and 0.3~129 ug m-2 min-1 in different seasons, respectively. GHG emissions from exercise yard showed a seasonal variation. GHG emission rates from different zones (cubicle zone vs. aisle zone) of the lot greatly varied, and the emissions were significantly affected by manure removal strategy (P<0.05). The zone near cubicles on the yard had more excreta and higher CO2 and CH4 emissions (P<0.05), while N2O emissions showed a disparity in different seasons. Compared with the result before manure removal, N2O emissions were greatly higher after manure removal both at aisle and cubicle zones (P<0.05). Stacking height of the manure stockpiles measured was averaged at 55±12 cm. CO2, CH4 and N2O emissions from manure stockpiles were 4~168 mg m-2 min-1, 0.02~1.79 mg m-2 min-1 and 0.62~536 ug m-2 min-1, respectively. GHG emissions from stockpile also showed a seasonal variation. Volatile solid in manure and temperature were the key factors affecting COand CH4 emissions. N2O emissions were affected by manure storage duration.

(Download PDF)    (Export to EndNotes)