Remediation of heavy metal contaminated soil and urban environmental monitoring based on remote sensing images

Abstract

Abstract In order to improve people's quality of life, it is necessary to establish a complete environmental monitoring system outdoors. In the organizational structure of the environmental monitoring system, monitoring nodes are placed according to actual monitoring requirements to meet the needs of environmental monitoring and data information collection in the area. It mainly analyzes ZigBee technology and 4G technology in detail. In order to overcome the short-distance transmission shortcomings of ZigBee technology, the system combines short-distance ZigBee technology and long-distance 4G technology to achieve short-distance data collection and long-distance transmission. This paper selects the tin mining area as a representative research field, and processes the images through professional remote sensing image processing software to extract land and plant pollution caused by tailings and mining areas. Then, enter the sample point to be tested to select typical main vegetation mining areas, complete the reflectance spectrum detection on the spot, and then conduct a comprehensive analysis of the spectral characteristics of some test data, and then check the plant reflectance and pollution status based on image processing Through studying the polluted materials extracted by spectroscopy, the tailings ecological restoration plan was finally developed.