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本文用室内光谱分析法找出了苹果害螨为害等级与680nm/800nm这一比值光谱指数的定量关系,并证明这种害虫在为害苹果树时对树冠没有方位性选择。这种病虫害为害与光谱相关关系的研究结果可使为害等级鉴别客观化和定量化,并为病虫害的遥感监测提供了依据。
In this paper, the quantitative relationship between the damage level of apple pest mites and the spectral index of 680nm / 800nm was found by the indoor spectral analysis, and it was proved that the pest did not have the directional selection for the canopy when the apple tree was damaged. The results of the research on the relationship between the pest damage and the spectrum can objectify and quantify the damage grade, and provide the basis for the remote sensing monitoring of pests and diseases.