Multi-location measurements of greenhouse gases and emission rates of methane and ammonia from a naturally-ventilated barn for dairy cows
Multi-location measurements of greenhouse gases and emission rates of methane and ammonia from a naturally-ventilated barn for dairy cows
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DOI：
10.1016/j.biosystemseng.2009.02.004
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发表时间：
2009-05-01
影响因子：
5.1
通讯作者：
Gustafsson, G.
中科院分区：
文献类型：
--
作者：
Ngwabie, N. M.;Jeppsson, K. -H.;Gustafsson, G.
测量畜牧业建筑中的气体排放是重要的，因为这些污染物可能影响农民的健康和周围环境。排放监测有助于判断缓解战略和控制排放目标的有效性。使用光声多气体分析仪1412和多路复用器1309（Lumasense Technologies SA，巴勒鲁普，丹麦）在自然通风的奶牛舍中测量CH（4）、N（2）O、NH（3）和CO（2）的浓度。产奶量为31-33 kg奶牛（-1）d（-1）。大楼里部分板条地板下的粪便沟每天被刮两次。在冬季奶牛长期呆在室内时和春季1周内奶牛夜间呆在室内白天在室外放牧时进行测量。在9个均匀分布的位置测量室内浓度，而在两个位置测量室外浓度。冬季平均通风量为250- 26 S m（3）LU（-1）h（-1），春季平均通风量为401 m（3）LU（-1）h（-1）。NH_3和CH（4）的排放量分别为0.89-1.13和9-13 g LU ~（-1）h ~（-1）。CO（2）和CH（4）浓度的增加之间存在很强的正相关性。(C)2009年IAgRE。由爱思唯尔有限公司出版。保留所有权利。
Measurements of the gaseous emissions in livestock buildings are important as these pollutants may affect the health of farmers and the surrounding environment. Emission monitoring enables judgements on the effectiveness of mitigation strategies and controls on emission targets. The concentrations of CH(4), N(2)O, NH(3) and CO(2) were measured in a naturally-ventilated dairy cattle building using a photoacoustic multi-gas analyser 1412 and a multiplexer 1309 (Lumasense Technologies SA, Ballerup, Denmark).The building had 164-195 Holstein dairy cows. The milk production was 31-33 kg cow(-1)d(-1). Manure gutters beneath the partially slatted floor in the building were scraped twice a day. Measurements took place during the winter when the cows were permanently indoors and during 1 week in the spring when the cows were indoors at night and outside grazing during the daytime. The indoor concentrations were measured at nine evenly distributed locations, while outdoor concentrations were measured at two locations. The mean ventilation rate in winter was 250-26S m(3) LU(-1) h(-1) and in spring, it was 401 m(3) LU(-1) h(-1). The emissions of NH3 and CH(4) were in the range of 0.89-1.13 and 9-13 g LU-1 h-1, respectively. A strong positive correlation was found between enhanced CO(2) and CH(4) concentrations. (C) 2009 IAgrE. Published by Elsevier Ltd. All rights reserved.