Discuss the basis of remote sensing of vegetation. Support your answer with well labelled diagrams, wherever required.

Remote sensing of vegetation is a key application of geoinformatics that involves monitoring, analyzing, and managing vegetation and related environmental resources using remote sensing technology. The basis of remote sensing of vegetation lies in the interaction of electromagnetic radiation with plant surfaces and the ability of remote sensors to detect and record this interaction.

1. Electromagnetic Spectrum and Vegetation:

Vegetation reflects, absorbs, and transmits electromagnetic radiation in specific ways, which form the foundation of its remote sensing. The most relevant regions of the electromagnetic spectrum for vegetation studies are:

• Visible spectrum (400–700 nm): Plants strongly absorb blue (400–500 nm) and red (600–700 nm) wavelengths for photosynthesis due to the presence of chlorophyll. Green light (500–600 nm) is reflected more, making vegetation __________ ______ __________ ______ ____ __________ _________.
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