上世纪90年代，天津市海岸线北段引种互花米草，开始呈点状分散分布，到2015年，天津市海岸带沿海滩涂互花米草呈不同程度分布趋势。为了掌握天津海岸带入侵植物互花米草的入侵情况，2020年本项目基于高分辨率卫星影像，运用GIS分析技术，对天津海岸带的互花米草信息进行了提取并分析其分布范围、面积，同时采用人工RTK及无人机正摄等技术手段进行实地监测，初步掌握了目前天津海岸带互花米草的分布状况。
In the 1990s, Spartina alterniflora was introduced into the northern part of the coastline of Tianjin, and began to be distributed in a dot shape. By 2015, Spartina alterniflora in the coastal beach of the coastal zone of Tianjin showed a distribution trend in varying degrees. In order to master the invasion of Spartina alterniflora in Tianjin Coastal Zone, in 2020, based on high-resolution satellite images, the project used GIS analysis technology to extract the information of Spartina alterniflora in Tianjin coastal zone and analyze its distribution range and area. At the same time, the project used artificial RTK and UAV orthophoto for field monitoring. The distribution of Spartina alterniflora in Tianjin coastal zone was preliminarily mastered.