冬小麦叶片光合特征高光谱遥感估算模型的比较研究

张卓,龙慧灵,王崇倡,杨贵军

Comparison of Hyperspectral Remote Sensing Estimation Models Based on Photosynthetic Characteristics of Winter Wheat Leaves

ZHANG Zhuo,LONG HuiLing,WANG ChongChang,YANG GuiJun

表1 不同类型光谱与各个光合参量的敏感区间及相关性

Table 1 Sensitivity range and correlation between different types of spectra and various photosynthetic parameters

光合参量 Photosynthetic parameters 光谱类型 Types of spectrum P>0.01置信区 Confidence interval of P > 0.01 (nm) r值范围 Range of r values 相关类型 Correlation type Amax 原始光谱 Original spectrum 399-737 0.39-0.7 负相关 Negative correlation 倒数光谱 Reciprocal of spectral 400-727 0.37-0.73 正相关 Positive correlation 对数光谱 Logarithm of spectral 399-731 0.38-0.72 负相关 Negative correlation 一阶导数光谱 First-order differential of spectrum 470-552、678-701、711-764 r值最大为0.65 r maximum:0.65 — Fv′/Fm′ 原始光谱 Original spectrum 431-724 0.36-0.58 负相关 Negative correlation 倒数光谱 Reciprocal of spectral 442-720 0.36-0.59 正相关 Positive correlation 对数光谱 Logarithm of spectral 435-722 0.36-0.6 负相关 Negative correlation 一阶导数光谱 First-order differential of spectrum 480-551、631-673、709-765 r值最大为0.71 r maximum:0.71 — qP 原始光谱 original spectrum 459-718 0.36-0.46 负相关 Negative correlation 倒数光谱 Reciprocal of spectral 485-710 0.36-0.59 正相关 Positive correlation 对数光谱 Logarithm of spectral 466-714 0.36-0.47 负相关 Negative correlation 一阶导数光谱 First-order differential of spectrum 480-522、632-673、710-758 r值最大为0.52 r maximum:0.52 —