摘要
采用蛋鸡粪和锯末堆肥,研究不同翻堆频率对堆肥甲烷排放量的影响。结果表明,在40d的堆肥过程中,翻堆频率为4次/d、2次/d、1次/d、1次/3d、1次/6d和不翻堆时,甲烷排放总量分别为28.60L、50.07L、70.85L、76.48L、90.74L和59.33L,与不翻堆相比,高翻堆频率(4次/d、2次/d)降低了甲烷排放总量,低翻堆频率(1次/3d、1次/6d)增加甲烷的排放总量。高翻堆频率显著降低产甲烷菌的多样性指数和产甲烷菌的总量,而低翻堆频率显著增加了产甲烷菌的总量。因此,不同翻堆频率可能是通过影响堆体氧气含量以及产甲烷菌多样性和总量来改变甲烷排放总量。
Layer manure and sawdust were used as compost raw materials in this experiment to study the effect of turning frequency on greenhouse gases emission.The result showed that compared with the control group,high turning frequency （four times per day and two times per day） decreased methane emission,however,low turning frequency （once every three days and once every six days）increased methane emission.The analysis of methanogens diversity and the population of total methanogens showed that high turning frequency significantly reduced the diversity indexes and population of methanogenes,low turning frequency significantly increased the population of methanogenes.Therefore,different turning frequency might inhibit the methane emission through the changes of methanogens diversity and the population of total methanogens.
出处
《家畜生态学报》
北大核心
2014年第2期42-47,共6页
Journal of Domestic Animal Ecology
基金
现代农业产业技术体系项目(CARS-41)
2011年公益性行业(农业)科研专项经费资助(201303091)
关键词
翻堆频率
蛋鸡粪
堆肥
甲烷排放
turning frequency
layer manure
composting
methane
