What primarily affects the reflectivity of leaves in remote sensing?
Understand the Problem
The question is asking about the factors that primarily influence the reflectivity of leaves when observed through remote sensing techniques. It presents multiple-choice answers, suggesting that the respondent needs to identify the most significant factor among the options provided.
Answer
Presence of water in vegetation.
The primary factor affecting the reflectivity of leaves in remote sensing is the presence of water in the vegetation.
Answer for screen readers
The primary factor affecting the reflectivity of leaves in remote sensing is the presence of water in the vegetation.
More Information
Water content in leaves plays a crucial role because it absorbs radiation in specific wavelengths, indicating plant health and hydration. Reflectivity changes can be a sign of water stress.
Tips
It is common to mistakenly assume that only chlorophyll affects reflectivity, but water content is also crucial.
Sources
- Spectral Reflectance - ScienceDirect - sciencedirect.com
- Reflected Near-Infrared Waves - NASA Science - science.nasa.gov
- Why are plants highly reflective in near infrared? - Quora - quora.com
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