Application of GIS technology in ecological environment pollution prevention and control

With the rapid development of China's economy and the increase in population, environmental problems are becoming more and more prominent. In order to solve this problem, the government has taken a series of measures to protect the environment, in which GIS technology, as an emerging technical means, has been widely used in the field of environmental protection. GIS technology can integrate data collection, spatial analysis and decision-making process into a common information flow, which has great potential to be applied to the ecological and environmental pollution prevention and control of a comprehensive and complex nature. This paper mainly discusses the application of GIS technology from six aspects: environmental monitoring, environmental evaluation and prediction, environmental impact assessment, environmental planning and environmental emergency forecasting.