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Chlorophyll and Soil Effects on Vegetation Colorimetric Characters

机译:叶绿素和土壤效应对色度

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A significant amount of research has been performed to develop efficient methods for monitoring of vegetation dynamics. A prevailing part of the work is devoted to multispectral data transformation techniques such as spectral bands ratios and linear combinations (vegetation indices) as a mean for vegetation parameters estimation. Vegetation cover fraction and chlorophyll assessment is a main objective in vegetation monitoring. In agriculture, for instance, vegetation amount is related to plant growth monitoring, stress detection and yield forecasting. Here we use colorimetric analysis of spectral reflectance data to examine the sensitivity of vegetation chromaticity features to chlorophyll and canopy fraction changes. Two main factors influence vegetation visible and near infrared reflectance: plant senescence, i.e. chlorophyll inhibition due to plant maturing or as a stress symptom, and soil spectral properties varying with soil type and surface properties. The work was conducted in order to reveal plant senescence effects and soil background impact on vegetation reflectance response and colorimetric characters behaviour.
机译:已经进行了大量的研究以开发有效的监测植被动态的方法。作为植被参数估计的平均值,诸如多光谱数据变换技术,例如光谱带比和线性组合(植被指数)的多光谱数据变换技术。植被覆盖分数和叶绿素评估是植被监测的主要目标。例如,在农业中,植被量与植物生长监测,应力检测和产量预测有关。这里我们使用光谱反射数据的比色分析来检查植被色度特征对叶绿素和冠层级分的敏感性。两个主要因素影响植被可见,近红外反射率:植物衰老,即叶绿素抑制因植物成熟或应力症状,土壤光谱特性与土壤型和表面特性不同。该作品是为了揭示植物衰老效应和土壤背景对植被反应响应和比色特征行为的影响。

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