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Chlorophyll and Soil Effects on Vegetation Colorimetric Characters

机译：叶绿素和土壤对植被色度特征的影响

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摘要

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：已经进行了大量研究以开发监测植被动态的有效方法。该工作的主要部分致力于多光谱数据转换技术，例如光谱带比率和线性组合（植被指数），作为植被参数估计的平均值。植被覆盖率和叶绿素评估是植被监测的主要目标。例如，在农业中，植被数量与植物生长监测，胁迫检测和产量预测有关。在这里，我们使用光谱反射率数据的比色分析来检查植被色度特征对叶绿素和冠层分数变化的敏感性。影响植物可见光和近红外反射率的两个主要因素是植物衰老，即由于植物成熟或作为胁迫症状而导致的叶绿素抑制作用，以及土壤光谱特性随土壤类型和表面特性而变化。进行这项工作是为了揭示植物衰老效应和土壤背景对植被反射响应和比色特性的影响。

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