Abstract
Taiwan is in a subtropical region. The weather and climate caused by climate change have frequently recorded record-breaking meteorological disasters in Taiwan and the rest of the world. This has brought great threats to the country's social economy and people's lives and property. How to respond to the disaster has become an important issue in national security. The Taiwan area is often severely affected by monsoons and typhoons, making the coastal windbreaks in the first line must face the drought, high salt and barren growth environment, as well as extreme rainfall and strong winds. The coastal windbreaks lack the cumulative coverage of the litter of the forest, the seed bank, and the seed rain, which are difficult to operate through natural regeneration. Therefore, artificial planting of native tree species must be carried out through breeding techniques, and ecological regeneration should be induced to induce natural regeneration and improve the long-term stability of coastal forests. This is the primary task of current coastal forest management. A full understanding of the changes in coastal forest ecosystems and phytoremediation is an important issue for the sustainable management of coastal forests. The growth of forests is affected by the geology of the fertility, surrounding vegetation resources, climatic conditions, etc. It is necessary to monitor and grasp the spatial distribution of large-scale vegetation growth for a long time, in order to grasp the trend of coastal forest vegetation change. This study selected the eroded coastline of Taiwan as the target, using satellite imagery to monitor the vegetation changes along the entire coastline, and using the spatial and temporal data of satellite imagery to understand the coastal phytoremediation of the reforestation pathway. The scientific research method clarifies the location of the coastal forest and the source of its pressure.