Study On Floating Dust Air Environmental Effects In Beijing And Adjacent Areas By Remote Sensing

Remote sensing technology is a comprehensive survey technology developedfrom the 1970s. After a short period of 30 years of development, remote sensingtechnology has been widely applied to the investigation and monitoring of resourcesand the environment, military applications, urban planning and other fields.Instantaneous access to remote sensing imagery in large regional surface andatmospheric information, facilitate dynamic monitoring, which is one of the hotissues of Remote Sensing of the Environment.Present in the collection of the study area geology, topography, climate andother natural conditions and remote sensing information on the basis of informationmaps field sampling. According to the physical and geochemical analysis of theregion affected territories that the distribution of heavy metals along the Great Wallof terrain, wind, water erosion and the role of anthropogenic factors significantly.Beijing has become a special location upstream region together sand dust region, alarge number of industrial, agricultural increased heavy metal content distribution.Beijing surrounding areas desertification has a significant impact on the Beijingarea atmospheric floating dust air. Explore the desertification of land, the atmospherefloating dust air meteorological disasters mechanism to facilitate comprehensive,objective, and accurate forecasting and evaluating the study area of landdesertification. For desertification control and the improvement of environmentalquality in Beijing atmospheric reasonable proposalsCalcuated parameters such as NDVI, LAI, DVI, RVI , BP, the surfaceTemperature form the remote sensing imagery of study area. Analysis of Hg,As,Cu,Pb,Zn and other elements of content in Beijing district dust,soil sample collection.Analysis of the rervance of data form remote sensing images and the field ofInformation.Studies show that Beijing district with the distribution of atmospheric dust andpollution particles from the soil with a certain heavy metals pollution. Vegetationdistribution, urban heat effects on the distribution of atmospheric pollutants clear.Should take active measures to enhance greening and improving urban green cover,reduce atmospheric pollution from particles. Beijing surrounding areas should alsobe actively strengthen governance desertification, In-depth study of the air pollutantsprovinces city transportation formation mechanism. To Provide solution of airquality improvement for Beijing and the surrounding areas.