Physiological Traits (IMAGE) University of Zurich Caption Spatial composition of the physiological traits leaf chlorophyll, carotenoids and water content. The color composite shows the relative abundance of the three traits at each pixel of 6x6 m. Credit University of Zurich Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.