Monitoring and evaluation of global warming gas derived from dairy cow under heat stress

热应激下奶牛产生的全球变暖气体监测与评价

• 批准号: 23780257
• 负责人: YOSIKOSI Hisashi
• 金额: $ 2.5万
• 依托单位: Yamaguchi University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23780257/
• 关键词: 暑熱対策; 温室効果気体

The dairy cow is so heat stress-sensitive that countermeasures against recent global warming should be necessary in dairy farming. On the other hand, methane gas derived from dairy cow body, estimated to be 25% of global emission, is the major source along with the paddy rice cropping in agriculture. In order to reveal the influence of heat stress on methane and the carbon-dioxide emissions, which are exerted by the physiology state of a dairy cow, the monitoring system was constructed by using a carbon dioxide gas analyzer. The dynamic chamber method should be operated as far as certain flow conditions, otherwise a fluid analysis should be used during the night time to enhance the accuracy of the gas flux evaluation.

奶牛非常敏感，以至于在乳制品耕作中应需要对抗最近的全球变暖。另一方面，从奶牛体衍生的甲烷气体估计占全球排放的25％，是农业中的稻米种植的主要来源。为了揭示热应激对甲烷和二氧化碳排放的影响，这些排放是由乳制牛的生理状态施加的，监测系统是通过使用二氧化碳气体分析仪构建的。动态室方法应在某些流动条件下进行操作，否则应在夜间使用流体分析，以提高气通量评估的准确性。