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Spectral reflectance of rice seedlings

机译：水稻幼苗的光谱反射率

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Abstract: The spectral reflectance of young rice plants was measured in the visible and near-IR region of the spectrum using a commercially available fiber optic contact probe and miniature spectrometer. This work aims to identify an empirical spectral index which changes when rice is exposed to increased levels of chloride anions in the irrigation water and soil. The ratio of near IR reflectance to that of green, R$-750/555$/ is known to be a quantitative measure of chlorophyll content in the leaf but int his study does not show a consistent shift for sample which are exposed to chloride levels equal to or less than 0.1 percent by mass of soil. However, leaf contact spectral reflectance measurements did reveal a significant and consistent increase in R$-750/555$/ along the length of the leaves, and this variation should represent an important factor in modeling remote and proximal sensing data. !10
机译：摘要：使用市售的光纤接触探针和微型光谱仪在光谱的可见光和近红外区域内测量了水稻幼苗的光谱反射率。这项工作旨在确定一个经验光谱指数，当水稻暴露于灌溉水和土壤中增加的氯离子水平时，该光谱指数会发生变化。已知近红外反射率与绿色反射率之比为R $ -750 / 555 $ /是衡量叶片中叶绿素含量的定量方法，但他的研究并未显示暴露于氯化物水平的样品的一致变化等于或小于土壤质量的0.1％。但是，叶片接触光谱反射率测量确实显示出沿叶片长度的R $ -750 / 555 $ /显着且持续的增加，并且这种变化应该代表对远程和近端传感数据建模的重要因素。 ！10

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