关键词: 无人机遥感, 岸线, 监管, 河长制

Abstract:

In the process of the comprehensive implementation of the river chief system, the river chief must strictly control the control the ecological space along river shorelines control the ecological space along river shorelines. Thus, it is necessary to analyze and govern outstanding problems such as occupation, abuse, and unauthorized use of shorelines. Traditional ground monitoring has been unable to fully meet the demands of the current efforts to manage/protect the shoreline. The study area is a river shoreline which was supervised by a village chief in Guangdong. Using civil small unmanned multirotor aircraft, aerial photos of the shorelines were collected. The images were then extracted, interpreted, and analyzed, and measures to identify problem areas and rehabilitate the shoreline were determined. This result can provide useful reference for supervision departments in on-site inspections. The river inspection workload can be greatly reduced while efficiency can also be significantly improved. Compared with traditional ground monitoring, the results of this research show that unmanned aerial vehicle (UAV)-based remote sensing technology is more efficient and intuitive in the detection of point targets (e.g., boundary stones) and linear targets (e.g., enclosures). It has superior advantages in the monitoring of surface distribution targets (e.g., vegetation); the problem of monitoring hard-to-reach areas can also be solved. The equipment used in this research is a widely used product in the market. The process of obtaining UAV photos is simple and easy to learn, and can be applied in the monitoring of village-level river sections. With its operational convenience and intelligence, it can conduct inspections of fixed river shorelines, eliminating the need for manual and repeated inspections. Taking into account some limitations on the use of UAV remote sensing technology, a combination of satellite remote sensing, UAV remote sensing, and ground investigation is needed in the supervision of long river shorelines to achieve complementary advantages. After the application of this UAV remote sensing technology to river shoreline resource supervision, some defects in UAV technology, sensors technology, aerial data processing technology, and remote sensing image interpretation were also found. These can be used as a reference for subsequent research and development. UAV remote sensing is an important method for obtaining spatial data with flexible, high-resolution image characteristics to solve the problems of daily supervision. In this study, we explored the application of UAV to monitor river shorelines. The application of UAV remote sensing technology is proposed to support the river management system, which is of great significance for waterfront shoreline management.

Key words: UAV Remote Sensing, river shoreline, supervision, River Chief System