红外热成像监测云南松切梢小蠹虫害: 针叶尺度 观测

王景旭,黄华国,林起楠,王冰,黄侃

Shoot beetle damage to Pinus yunnanensis monitored by infrared thermal imaging at needle scale

WANG Jing-Xu,HUANG Hua-Guo,LIN Qi-Nan,WANG Bing,HUANG Kan

表2 试验测量参数、仪器、测量间隔及用途

Table 2 Parameters, instruments, measurement intervals of the observation and their purposes

测量参数 Measured parameter 缩写 Abbreviation 测量方法 Measured method 测量间隔时间 Measured interval times 用途 Purpose 光谱反射率 Spectral reflectance Ref 光谱仪联合互补观测AvaSpec-EDU-VIS和AvaSpec-NIR1.7 7 d 评估光谱对受害程度的响应 Assess the spectral response to the damaged degrees 叶绿素含量 Chlorophyll content of leaf CCL CCM-300 7 d 解释光谱变化并划分不同受害阶段 Interpret spectral changes and divide into the damaged stages 叶片含水量 Water content of leaf WCL 烘干 Oven drying 7 d 分析不同受害阶段叶片含水量与叶片温度的关系 Analyze the relationship between leaf water content and leaf temperature at different damaged stages 叶片温度 Leaf temperature Tleaf FLIR T420 1 h 分析不同受害阶段叶片温度日变化 Analyze diurnal changes of leaf temperature at different damaged stages 气孔导度 Stomata conductance Gs LI-6400 2 h 解释不同受害阶段叶片温度的变化 Explain leaf temperature changes at different damaged stages 净光合速率 Net photosynthetic rate Pn 蒸腾速率 Transpiration rate Tr 叶片与大气温差 Temperature difference between leaf and atmosphere ΔTl-a