Submerged plant quadrat investigation device

The utility model relates to a submerged plant quadrat investigation device which comprises a floating body frame, cross curve laser lamps, a water depth tester, lighting equipment and camera shooting equipment, the floating body frame is square, and the cross curve laser lamps are installed at the four corners of the floating body frame and used for forming a laser quadrat range; a water depth measuring instrument is mounted in the middle of one border of the floating body frame and is used for measuring the water depth; a supporting frame is arranged in the middle of the floating body frame, and lighting equipment and camera shooting equipment are installed on the supporting frame and used for shooting and sampling submerged plants within the laser quadrat range. The quadrat investigation requirements under different water depth and transparency conditions are met, and the investigation efficiency and accuracy are improved. 本申请涉及一种沉水植物样方调查装置，包括浮体框架、十字线激光灯、水深测定仪、照明设备以及摄像设备，所述浮体框架为正方形，在浮体框架的四角安装有十字线激光灯，用以形成激光