Abstract
The improvement of urbanization level and the imperfection of waste treatment infrastructure have caused the problem that informal garbage dump become prominent problem in China. With the development of high resolution remote sensing images, the fast monitoring and management of informal garbage dumps become possible. The informal garbage dumps in Beijing are monitored by SPOT-6 image, and the rapid and accurate grasp of the number, position and size of the informal garbage dumps are identified by the establishment of the interpretation key using multivariate data. And then it is classified by the established interpretation key. Irregular garbage sites are uneven in shape and complex in composition, which leads to their atypical features in images. Visual interpretation and classification are more suitable for other methods.
Highlights
In recent years, with the improvement of urban living and residents consumption, municipal solid waste production increase continually, producing a large number of municipal solid waste simple landfill and air storage due to inadequate waste management and treatment facilities
Using the SPOT-6 image, the number of informal garbage dumps in Beijing is constantly decreasing by comparison of the Beijing remote sensing monitoring data in 2015 and 2017 from 300 in early 2015 to 50 in the end of 2017
In the fall of 2017, the party's 19th national meeting was about to be held, in order to create a clean Beijing city, and the authorities were actively working on the irregular junkies, leading to a rapid reduction in the number of informal garbage dumps in Beijing to about 20 or so, but a rebound in the latter stage
Summary
With the improvement of urban living and residents consumption, municipal solid waste production increase continually, producing a large number of municipal solid waste simple landfill and air storage due to inadequate waste management and treatment facilities. Monitoring and management of informal dump sites is a serious problem, and traditional methods of field survey is laborious and time-consuming.With the increasing resolution of remote sensing images and the increasing variety of data, it is possible to use remote sensing images to monitor and manage informal garbage sites. Remote sensing has the characteristics of macroscopic, timeliness, current situation and economy, etc. It is an effective and rapid means for monitoring informal garbage sites.Through remote sensing monitoring, statistics on informal garbage dumps are obtained and trends in informal garbage dumps are available to provide a basis for governance. Remote sensing has been applied to site selection and hazard assessment of garbage landfill sites, while it is rarely used to identify and monitor them. The information available is only monitored by aerial photographs. Liu Yalan conducted interpretation analysis and change detection research on informal garbage sites using Beijing-1images in Beijing[4]
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