Spectral Reflectance Analysis Curves

Reveal the Internal Health Conditions of Trees:

Could you identify which trees were deteriorating more seriously?

A Case Study of Stressed Trees along the Paramount Boulevard 
Los Angeles, U.S.A. Using the Spectral Reflectance Analysis

The case study covers 25 stressed trees (Ficus microcarpa) growing along a section of Paramount Boulevard, between Deerford Street and Greenmeadow Street in Lakewood City, Los Angeles, U.S.A. These trees, infected by Bot canker (Botryosphaeria canker) in recent years, were all removed in June 2019. We have undertaken a retrospective case study of these trees using WV-2 satellite data collected on 2010-04-07, 2012-04-28, 2016-05-24, 2018-04-11 and 2019-05-29.

According to the charts below

Could you identify which trees were deteriorating more seriously?

Click the arrow to check out the answers!

Over the period from 2010 to 2019, among the 25 stressed trees under study, apart from  Tree 13  which was continuously declining, others were fluctuating at different level. As Tree 1, 7, 8, 12, 17, 20, 21, 22, 23, 24 and 25 were highly fluctuating, the implication was deteriorating more seriously. 

 
Forest Trees
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