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《Guizhou Agricultural Sciences》 2015-06
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Spectral Response Characteristics of Corn Leaves under Copper Stress

YANG Keming;SHI Gangqiang;WEI Huafeng;SUN Yangyang;LIU Fei;College of Geoscience and Surveying Engineering,China University of Mining &Technology (Beijing);  
The effect of different Cu2+stress on chlorophyll and Cu content of corn leaves was analyzed and spectral characteristics of corn leaves under Cu2+stress was described by the suggested sum of spectral difference and mean value of spectral difference according to 12 characteristic waveband,normalized differential vegetation index and spectral angle to study reflectance spectral characteristics of corn leaves under Cu2+stress.The results showed that Cu content of corn leaves increases but chlorophyll content of corn leaves decreases gradually with increase of Cu2+concentration in soil.The spectral difference between corn leaves under Cu2+stress and health corn leaves can be identified by methods of spectral characteristic waveband,normalized differential vegetation index,spectral angle,sum of spectral difference and mean value of spectral difference.
【Fund】: 国家自然科学基金项目“矿区环境重金属污染的高光谱遥感监测与分析方法研究”(41271436)
【CateGory Index】: S513;Q945.78
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