摘要
利用静态箱-气相色谱法,研究了黑白花奶牛粪便在四个堆放高度(30、45、60 cm和每天加粪6 cm加至粪便高度为60 cm)自然堆放20周的CH_4排放速率,同时分析了堆放前后奶牛粪便的理化特性。结果表明:堆放7周后,奶牛粪便干物质、挥发性固体、全氮、全磷(除堆高30 cm的处理外)、氨态氮、pH(除每天加粪便的处理外)均相应下降,灰分、总有机碳和碳氮比增加;四种处理CH_4排放速率在堆放4 d内分别达到一个峰值,后急剧下降并逐渐平稳,实验中期出现一个持续7周的高峰期。Wilcoxon非参数检验表明,粪便堆高和堆放方式对甲烷排放影响较大。
By static chamber technique and GC method,methane emission rates from Holstein dairy cattle manure under untreated anaerobic stored had been measured for 20 weeks. The four stacking height were 30,45,60 cm and adding 6 cm manure per day until it reaching 60 cm,respectively.Moreover,characteristics of the manure were analyzed for the pre and post stored manure after 7 weeks.As the results revealed,after having been stored for 7 weeks,the dry matter,volatile solids,the total nitrogen,the total phosphorus（besides stored height was 30 cm）,the total ammonia nitrogen and pH（besides adding 6 cm manure per day until it reaching 60 cm） of dairy manure decreased,while ash,the total organic carbon and the ratio of carbon to nitrogen increased.The CH4 emission rates reached peak values at the first 4 d,respectively,thereafter decreased remarkably and leveled off,and then appeared high peak stages for about 7 weeks at the middle stage from the manure under four different treatments, respectively.By Wilcoxon nonparametric tests,stacking height and manner greatly influenced the methane emissions from manure.
出处
《南开大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第1期87-92,共6页
Acta Scientiarum Naturalium Universitatis Nankaiensis
关键词
黑白花奶牛
甲烷排放速率
堆放高度
粪便特性
Holstein dairy cattle
methane emission rate
stacking height
fecal characteristics
