基于连续统去除法的水生植物提取及其时空变化分析——以官厅水库库区为例

汪星,宫兆宁,井然,张磊,金点点

Extraction of aquatic plants based on continuous removal method and analysis of its temporal and spatial changes—A case study of Guanting Reservoir

Xing WANG,Zhao-Ning GONG,Ran JING,Lei ZHANG,Dian-Dian JIN

表3 官厅水库3种湿地植物类型吸收特征参数统计

Table 3 Statistics of parameters of absorption characteristic in 3 types of wetland vegetation types in Guanting Reservoir

植物类型 Vegetation type 光谱数 Number of spectra Blue处吸收深度平均值 Blue absorption depth average Red处吸收深度平均值 Red absorption depth average SWIR1处吸收深度平均值 SWIR1 absorption depth average 沉水植物 Submerged plants 20 0.3202 0.3579 0.7977 浮水植物 Floating plants plants 20 0.5955 0.7740 0.2167 挺水植物 Emergent plants 20 0.7272 0.8466 0.3542