权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Nitrous oxide emissions from milking production - system boundary farm

挤奶生产中的一氧化二氮排放 - 系统边界农场

基本信息

批准号：
243775296
负责人：
Professor Dr. Wolfgang Büscher
金额：
--
依托单位：
Institut für Landtechnik (ILT)
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2013
资助国家：
德国
起止时间：
2012-12-31 至 2017-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/243775296?language=en
关键词：
Nitrous oxide emissions milking production

项目摘要

Against the backdrop of climate change, its causes and dynamics, the contribution of cattle farming is discussed controversially. But for a comprehensive assessment are not only the methane emissions and the process energy important; also the nitrous oxide emissions are very significant and shouldn't be disregarded because of the strong climate relevance. However the knowledge about formation, release and emission of nitrous oxide from the biotechnical system "milk production on the farm" are sketchy.Hence the superior aim of this project proposal is to capture the action of nitrous oxide emissions in barn as well as the upstream and downstream of the areas (for example from feed and the organic waste). To this measurements are planned on stable-level and emission-active subareas of the entire system. From the findings, a model for emissions forecast should be created and measures to reduction of nitrous oxide emissions should be investigated and validated.For the investigations on stable-level, the at the Institute of Agriculture Engineering developed measuring methods to determine the increase of concentration and the air flow volume should be applied and developed further for the component 'nitrous oxide'.For this purpose, a sampling technique with vacuumed glass containers should be integrated into the measurement concept, so that a quasi-continuous sampling can be realized. The concentration determination will take place time-delayed by gas chromatography in the laboratory.At the investigations of the emission active subareas the gas samples are carried out with a proven hood technology ("closed chamber" method).The concentration measurements at laboratory level are also held in collaboration with the Institute of Crop Science and Resource Conservation (INRES) of the University of Bonn.The gained findings form the database to calculate the total greenhouse gas emissions from milk production and to prove mitigation measures for nitrous oxide in practice.

在气候变化的背景下，其原因和动态，牛养殖的贡献是有争议的讨论。但是对于一个全面的评估，不仅甲烷排放和过程能源很重要;一氧化二氮的排放也很重要，不应该被忽视，因为它与气候有很强的相关性。然而，关于生物技术系统“农场牛奶生产”中一氧化二氮的形成、释放和排放的知识还很粗略，因此，本项目建议书的上级目标是捕捉牛舍以及上游和下游地区（例如饲料和有机废物）一氧化二氮排放的行为。为此，计划在整个系统的稳定水平和排放活跃子区域进行测量。根据研究结果，应建立排放预测模型，并研究和验证减少N2 O排放的措施。对于稳定水平的调查，农业工程研究所开发的测量方法可以确定浓度的增加，并且应进一步应用和开发空气流量。应将真空玻璃容器取样技术纳入测量概念，以便实现准连续取样。浓度测定将在实验室中通过气相色谱法进行延时。在对排放活跃分区的调查中，使用经验证的通风柜技术进行气体采样实验室一级的浓度测量也是与作物科学和资源保护研究所合作进行的所获得的研究结果形成数据库，用于计算牛奶生产的温室气体排放总量，并证明实践中的一氧化二氮减排措施。