空间电场对冬春季畜舍温室气体的净化效果

目的] 探讨空间电场对冬春季畜舍内温室气体的净化效果以及对舍内温湿度的影响。方法] 在畜舍内安装空间电场净化设备和温湿度监测仪,舍内外均设置3个取气点,每个取气点分0 m、0.5 m、1.0 m和1.5 m 4个采集高度,系统监测冬春季畜舍温室气体浓度以及温湿度变化情况。结果] 空间电场显著（P<0.05或P<0.000 1）降低了冬春季畜舍内CH₄、NH₃和CO₂气体的浓度,降低幅度分别可达39.8%、26.3%和24.0%。空间电场可显著（P<0.05）降低冬季舍内20：00—8：00和12：00—15：00的环境湿度,分别降低了4.5%和15.3%。春季湿度在9：00—17：00降低了31.9%（P<0.05）。结论] 空间电场可有效地降低冬春季畜舍内CH₄、NH₃和CO₂气体浓度,同时显著降低畜舍内不同时间段的环境湿度。

Purification Effect of Spatial Electric Field on Greenhouse Gas of Livestock House in Winter and Spring

Objective] To assess the purification effect of spatial electric field on greenhouse gas and its impact on temperature and humidity in the livestock house in winter and spring. Method] The spatial electric field purification equipment as well as temperature and humidity monitors were installed in the livestock house. Three air extraction points were set inside and outside livestock house, respectively, and four heights including 0 m, 0.5 m, 1.0 m and 1.5 m were set for each air extraction point. The changes of greenhouse gas concentrations as well as temperature and humidity during winter and spring were systematically monitored. Result] Spatial electric field significantly （P<0.05 or P<0.000 1） reduced the concentrations of CH₄, NH₃ and CO₂ inside the livestock house in winter and spring by 39.8%, 26.3% and 24.0%, respectively. Spatial electric field significantly （P<0.05） decreased the ambient humidity inside the livestock house from 20：00 to 8：00 and from 12：00 to 15：00 in winter by 4.5% and 15.3%, respectively. In spring, the ambient humidity inside the livestock house was significantly （P<0.05） decreased by 31.9% from 9：00 to 17：00. Conclusion] The spatial electric field can effectively reduce the concentrations of CH₄, NH₃ and CO₂ and significantly decrease the indoor humidity of different time duration in the livestock house in winter and spring.