新一代遥感技术助力生态系统生态学研究

郭庆华,胡天宇,马勤,徐可心,杨秋丽,孙千惠,李玉美,苏艳军

Advances for the new remote sensing technology in ecosystem ecology research

GUO Qing-Hua,HU Tian-Yu,MA Qin,XU Ke-Xin,YANG Qiu-Li,SUN Qian-Hui,LI Yu-Mei,SU Yan-Jun

表1 不同传感器的技术优势及其主要应用领域

Table 1 Summary of advantages and applications of five major remote sensing sensors

传感器 Sensor 技术优势 Advantage 主要应用领域 Application RGB相机 RGB camera 获取高空间分辨率的颜色和纹理信息 Capturing color and texture at high spatial resolution 生态系统类型、植被状况、物候 Ecosystem type, vegetation monitoring, phenology 多光谱/高光谱成像仪 Multi-spectral/ hyperspectral scanner 获取数个或上百个波段的反射率信息 High spectral resolution; obtaining of several or hundreds spectral bands’ reflectance 生态系统类型、物种分类、生化组分、植被健康、物候 Ecosystem type, species classification, biochemical composition, vegetation health, phenology 微波雷达 Microwave radar 全天候, 对林冠具有一定的穿透性, 能够获取部分地下信息 All-weather; limited penetrating vegetation canopy; capturing belowground information 地形、蓄积量、树高、生物量 Topographic information, stand volume, tree height, biomass 叶绿素荧光扫描仪 Solar-induced chlorophyll fluorescence scanner 获取日光诱导的叶绿素荧光信息 Collecting solar-induced chlorophyll fluorescence 初级生产力、物候、胁迫监测 Gross primary production, phenology, stress monitoring 激光雷达扫描仪 Lidar scanner 对林冠具有穿透性, 获取精细地形、丰富植被三维信息 Penetrating vegetation canopy; obtaining fine terrain and 3D vegetation information 地形、胸径、树高、叶面积指数、生物量 Topographic information, diameter at breast height, tree height, leaf area index, biomass