Vol. 17 No. 1
NDVI derived LAI model: A novel tool for crop monitoring
Author(s): R MOHAN KUMAR YAMANURA AND BASAVARAJ PATIL
Abstract: Over the period of time agriculture undergone metamorphosis.At present,many agriculture issues are being tackled by sophisticated sensor-based technologies. Normalized Difference Vegetation Index (NDVI) derived Leaf Area Index (LAI) is one such optical sensor-based simulation model which bridges optical behavior of vegetation with highly dynamic biological system. Higher plants exhibit differential response to electromagnetic spectrum as they have differential ratios of plant pigments which have distinct absorption, transmission and reflection of light. Based on this principle, NDVI derived LAI model is being used in prediction of various cropping activities and it exhibited high degree of positive correlation with ground truth assessment. Hence, NDVI derived LAI model would be suitable strategy for vegetation surveillance, stress assessment, pest and disease scouting as well as acreage and production forecasting of agriculture crops with high degree of accuracy.
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