World Library  

Add to Book Shelf
Flag as Inappropriate
Email this Book

Plos One : High Resolution Measurement of Light in Terrestrial Ecosystems Using Photodegrading Dyes, Volume 8

By Lamb, Eric Gordon

Click here to view

Book Id: WPLBN0003949528
Format Type: PDF eBook :
File Size:
Reproduction Date: 2015

Title: Plos One : High Resolution Measurement of Light in Terrestrial Ecosystems Using Photodegrading Dyes, Volume 8  
Author: Lamb, Eric Gordon
Volume: Volume 8
Language: English
Subject: Journals, Science, Medical Science
Collections: Periodicals: Journal and Magazine Collection
Publication Date:
Publisher: Plos


APA MLA Chicago

Lamb, E. G. (n.d.). Plos One : High Resolution Measurement of Light in Terrestrial Ecosystems Using Photodegrading Dyes, Volume 8. Retrieved from

Description : Incoming solar radiation is the main determinant of terrestrial ecosystem processes, such as primary production, litter decomposition, or soil mineralization rates. Light in terrestrial ecosystems is spatially and temporally heterogeneous due to the interaction among sunlight angle, cloud cover and tree-canopy structure. To integrate this variability and to know light distribution over time and space, a high number of measurements are needed, but tools to do this are usually expensive and limited. An easy-to-use and inexpensive method that can be used to measure light over time and space is needed. We used two photodegrading fluorescent organic dyes, rhodamine WT (RWT) and fluorescein, for the quantification of light. We measured dye photodegradation as the decrease in fluorescence across an irradiance gradient from full sunlight to deep shade. Then, we correlated it to accumulated light measured with PAR quantum sensors and obtained a model for this behavior. Rhodamine WT and fluorescein photodegradation followed an exponential decay curve with respect to accumulated light. Rhodamine WT degraded slower than fluorescein and remained unaltered after exposure to temperature changes. Under controlled conditions, fluorescence of both dyes decreased when temperatures increased, but returned to its initial values after cooling to the pre-heating temperature, indicating no degradation. RWT and fluorescein can be used to measure light under a varying range of light conditions in terrestrial ecosystems. This method is particularly useful to integrate solar radiation over time and to measure light simultaneously at different locations, and might be a better alternative to the expensive and time consuming traditional light measurement methods. The accuracy, low price and ease of this method make it a powerful tool for intensive sampling of large areas and for developing high resolution maps of light in an ecosystem.


Click To View

Additional Books

  • Plos One : Conserving the Birds of Ugand... (by )
  • Plos One : Psychometric Properties of th... (by )
  • Plos One : the Association Between Healt... (by )
  • Plos One : Brainstem Involvement as a Ca... (by )
  • Plos One : Anxiolytic-like Effects of An... (by )
  • Plos One : a Model for Cross-cultural Re... (by )
  • Plos One : Alterations of Serum Levels o... (by )
  • Plos One : Members of the Xb3 Family fro... (by )
  • Plos One : Food Insecurity and Children’... (by )
  • Plos One : Highly Informative Ancient Dn... (by )
  • Plos One : Non-invasive Magnetic Resonan... (by )
  • Plos One : Dynamic Link Between Histone ... (by )
Scroll Left
Scroll Right


Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.