【摘要】 旨在探索空调控制的地道进风楼房猪舍冬季舍内环境因子的空间分布规律。采用现场仪器检测的方法，对冬季楼房猪舍妊娠舍和分娩舍不同空间位点的温度、湿度、风速以及CO₂、NH₃、粉尘浓度进行检测，妊娠舍和分娩舍分别完成105个和150个位点的测量。结果：在妊娠舍和分娩舍不同高度上空气粉尘粒度分布规律都是PM_0.3<PM_0.5<PM_1.0<PM_2.5<PM_5.0<PM_10.0,其中PM_10.0的浓度最大为76.13和73.75μg/m³。温度在垂直方向上随着高度的增加而上升，不同高度间差异极显著（P<0.01）,在水平方向不同栏位间差异不显著（P>0.05）。风速在新风道0.1 m的高度上最大，在妊娠舍和分娩舍分别达0.75和0.41 m/s。CO₂的浓度随着高度的增加而增加，NH₃在新风道上的浓度随着高度的增加而增加；妊娠舍中CO₂和NH₃的最大浓度为1 982.90和34.76mg/m³,分娩舍中CO₂和NH₃的最大浓度为1 177.20和8.63 mg/m³;妊娠舍和分娩舍CO₂和NH₃的最小浓度均位于新风道0.1～0.45 m的区域。结论：空调控制的楼房猪舍冬季保温效果好，地道进风系统能够为猪只呼吸区域提供较好的空气质量，妊娠舍3.6 km³/h的换气量时舍内空气质量较差，建议增加阶段通风量以改善舍内空气质量。更多还原

【Abstract】 The present study aimed to explore the spatial distribution characteristics of various environmental parameters in ground channel ventilated multistory pig buildings in winter. The field test method was used to test the temperature, humidity, wind speed, and the concentrations of CO₂, NH₃ and dust at different space points in the gestation room and the farrowing room of multistory pig buildings in winter. 105 positions in the gestation room and 150 ones in the farrowing room were tested, respectively. The results showed that the dust particle size distribution rules at the points of of different heights were PM_0.3<PM_0.5<PM_1.0<PM_2.5<PM_5.0<PM_10.0 in the gestation room and the farrowing room, with the biggest concentrations of PM_10.0 were 76.13 and 73.75 μg/m³, respectively. The temperature increased with the height in the vertical direction, and the difference between different heights was very significant（P<0.01）, and the differences between different horizontal fields were not significant（P>0.05）. The largest wind speed in the gestation room and the farrowing room were 0.75 and 0.41 m/s, respectively, at the height of 0.1 m in the fresh air aisle. The CO₂ concentration increased with greater height, and the NH₃ concentration also increased with greater height above the fresh air aisle. The biggest concentrations of CO₂ and NH₃ in the gestation room were 1 982.90 and 34.76 mg/m³, respectively; the highest concentrations of CO₂ and NH₃ in the farrowing room were 1 177.20 and 8.63 mg/m³, respectively. The lowest concentrations of CO₂ and NH₃ in the gestation room and the farrowing room were located in the areas of 0.1-0.45 meter above the fresh air aisle. To sum up, air-conditioning controlled multistory pig buildings possessed good thermal insulation in winter. The ground channel ventilation provided good air quality for the pig’s breathing area. The air quality of the gestation room was bad when the ventilationwas 3. 6 km³/h; therefore, we recommended increasing the ventilation to improve the air quality.更多还原