南昌农田保护区的降尘规律研究

对南昌农田、城市共9个测点的降尘量进行了相关分析,对各测点降尘量与测点离排放源距离进行了回归分析,并将农田降尘量与环境气象因子进行了回归分析,研究南昌农田保护区的降尘规律。分析结果表明,农田保护区在降尘量水平和月分布规律上与城市有极大差异 农田降尘受该区域来源的贡献较大 影响农田降尘的因素是农事活动、地温、气温、蒸发量 全年气象条件的变化对应不同的降尘水平。

Study on Dust Rule in Farmland Protection Area in Nanchang

Relative analysis on dust capacity in 9 test sites of farmland and urban areas in Nanchang,regression analysis on distance between dust capacity and emission source,regression analysis between farmland dust and environmental meteorological factors were carried out,dust rule in farmland protection area in Nanchang was researched.The result showed that there were extremely differences between dust capacity in farmland protection area,monthly distribution rule and city,the contribution of this regional source to farmland dust was obvious;farming activities,ground temperature,air temperature and evaporation capacity were effect factors of farmland dust;the changes of annual meteorological conditions were corresponding to different dust levels.