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INTERCEPTION EFFECT OF VEGETATIVE ENVIRONMENT BUFFERS ON POLLUTANT EMISSION FROM MECHANICAL VENTILATED POULTRY HOUSES
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org
Citation: 2018 ASABE Annual International Meeting 1800549.(doi:10.13031/aim.201800549)
Authors: Li Guo, Shuli Ma, Dongsen Zhao, Jin Tong, Donghui Chen, Yunhai Ma, Mo Li, Zhiyong Chang
Keywords: Dust emissions, Particulate matter (PM), Poultry house, Vegetative environment buffer (VEB)
Abstract. Scientists have effectively proved vegetative environment buffers (VEB) can be used for reducing dust emissions from livestock building, but they have seen less test in poultry farms. A field research was conducted at outside of a laying hen house in Changchun to assess the effectiveness of VEBs formed by various plant species for reducing downwind particulate matter (PM) impacts from mechanical‐ventilated poultry house. Five diverse VEBs were installed in different time of summer 2017, with one case without VEB, served as the control. Three aerosol mass concentrations (PM2.5, PM10, PMTotal) were recorded using TSI DustTrak DRX 8533. Five plant species were Winged euonymus (WE), Malus spectabilis (MS), Padus maackii (PMA), Acer saccharum marsh (ASM), Padus virginiana ‘Red Select Shrub‘ (PV_RSS) transfered from local area. Compared to the control test, the VEB formed by PV_RSS had the best effect with dust reduction of PM2.5, PM10, PMTotal by 48.2%, 41.0% and 32.3%, respectively. There was an obvious difference of PM2.5 and PM10 concentrations at upwind monitored points between non-VEB case and the VEB case 2-6. Furthermore, based on the analysis of the microstructure of leaves, the number of stomata was a factor that influence the accumulation of particulate pollutants in leaves, but not decisive factors. The PM deposition capacity of PV leaves in the adaxial was much stronger than that in the abaxial.
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