基于 GIS的灌区土壤投入品残留污染监测预警系统.

This article aims to solve the problem of residual pollution of soil inputs in irrigation areas caused by industrial development, a soil pollution monitoring and early warning system based on geographic information system (GIS) was proposed. The system combined a VOC-PF1 sensor, an STM32 master chip, and a GSM communication module to achieve efficient data collection and communication functions. The spatial analysis was carried out by the in-verse distance weighted (IDW) interpolation method, and the early warning threshold was established to realize the real-time monitoring and early warning of soil input residual pollution in the irrigation area. The experimental results show that the monitoring accuracy of the system is as high as 98%, and the monitoring time is up to 49 s, which has high practicability and efficiency. This study not only provides an effective means for the monitoring of soil input residue pollution in irrigation areas, but also provides strong support for environmental protection and sustainable agricultural development. [ABSTRACT FROM AUTHOR]