The Effects of Falling Dust of Strong Dust Storms on Beijing Soils

The effects of physical properties and chemical properties of falling dust of dust storms on Beijing soils were studied and discussed.The results indicated that:The positive effects on Beijing soils are they could increase the mass amounts of silts,available nutrient,exchangeable cation,organic matter,total nitrogen,macroelement nutrients,and microelement nutrients.And they could promote the soil fertility of Beijing.The negative effects on Beijing soils are they could increase the mass amounts of soluble salt and microelements heavy metal pollution.So it could influence the soil environment quality in Beijing.