PDF《密闭蛋鸡舍内 NH3 浓度变化规律及其影响因子分析》

农业资源与环境学报2019年3月・第36卷・第2期: 221-226 March 2019・Vol.

36・No.2: 221-226 Journal of Agricultural Resources and Environment http://www.aed.org.cn 沈丰菊, 刘雪兰, 张克强. 密闭蛋鸡舍内NH3浓度变化规律及其影响因子分析[J]. 农业资源与环境学报, 2019,

36 (2) : 221-226. SHEN Feng-ju, LIU Xue-lan, ZHANG Ke-qiang. Variation of ammonia concentration and influence factors analysis in layer house[J]. Journal of Agricultural Resources and Environment, 2019,

36 (2) : 221-226. Variation of ammonia concentration and influence factors analysis in layer house SHEN Feng-ju1 , LIU Xue-lan2 , ZHANG Ke-qiang1* (1.Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China;

2.Poultry Institute, Shan? dong Academy of Agricultural Sciences, Jinan 250023, China) Abstract: Large-scale egg-production facilities are emission sources of various gases and particulate matter. Ammonia is one of the main gases emitted from laying hen houses. The ammonia emissions from housing systems for laying hens must be reduced to abate environmen? tal damage. A study was conducted to monitor the concentration of NH3, temperature and relative humidity in layer house. Then the relation? ship between the concentration of NH3 and environmental factors were analyzed. The results showed that the average daily temperature was (20.9±1.3)℃,(24.3±0.8)℃,(20.4±0.9)℃, and(14.7±0.9)℃ in spring, summer, autumn and winter respectively. And the average dai? ly relative humidity was 37.7%±4.9% in spring, 70.7%±3.0% in summer, 52.6%±3.4% in autumn and 52.6%±1.6% in winter. And the av? erage daily concentration of ammonia was (2.46±1.01)mg・m-3 in spring,(0.03±0.02)mg・m-3 in summer,(4.72±1.73)mg・m-3 in autumn and (3.05±0.41)mg・m-3 in winter. The concentration of ammonia in the layer house in different seasons had a certain correlation with the temperature and relative humidity. The change of the ambient temperature and humidity influenced the concentration of ammonia in the lay? er house. It was observed that ammonia emission rates in summer were lower than in winter because the high airflow stabilized the manure by drying it. The reductions due to lower moisture content were greater than the increase due to higher temperature. Keywords: ammonia concentration;

temperature;

relative humidity;

layer house 密闭蛋鸡舍内NH3浓度变化规律及其影响因子分析 沈丰菊1 , 刘雪兰2 , 张克强1* (1.农业农村部环境保护科研监测所, 天津 300191;

2.山东省农业科学院家禽研究所, 济南 250023) 收稿日期: 2018-05-21 录用日期: 2018-08-14 作者简介: 沈丰菊 (1979―) , 女, 青海平安人, 硕士, 助理研究员, 主要从事规模化畜禽养殖场环境变化监测与污染物减排技术研究. E-mail: shenfengju@sina.com *通信作者: 张克强 E-mail: kqzhang68@126.com 基金项目: 国家重点研发计划项目 (2018YFD0800100) ;

中央级公益性科研院所基本科研业务费专项 (22060302008004) Project supported: National Key R&

D Program of China (2018YFD0800100) ;

Central Public Research Institutes Basic Funds for Research and Develop? ment (22060302008004) 摘要: 鸡舍中的 NH3 已成为影响人畜健康的重要污染物, 为了解蛋鸡养殖环境中 NH3 浓度变化规律, 采用便携式畜禽舍环境动 态监测仪对密闭笼养蛋鸡舍内 NH3 浓度和温湿度等指标进行测定, 分析其变化规律及其与环境因子之间的相互关系.结果表明: 试验鸡舍内日平均温度春季为 (20.9±1.3)℃、 夏季为 (24.3±0.8)℃、 秋季为 (20.4±0.9)℃、 冬季为 (14.7±0.9)℃;