Studies on reflective features of Norway spruce and their possible applications in remote sensing of forest damage∗
- 1 May 1990
- journal article
- research article
- Published by Taylor & Francis in Toxicological & Environmental Chemistry
- Vol. 27 (4) , 209-215
- https://doi.org/10.1080/02772249009357575
Abstract
Reflective features of Norway spruce have been studied as a part of a multi‐level experiment in order to assess and to develop methods for early forecasting of forest damages by remote sensing. Discoloration and histological changes were investigated by high resolution reflectance spectroscopy and true‐color image interpretation of histological cuts, respectively. Major changes of reflectances were detected in the visible spectral range 480–680 nm depending on degree of tree's damages and/or needle discoloration. Related histological changes depending on degree of tree's damage were hypertrophy of chloroplasts, plasmolysis and partial loss of compartmentalization. Development and use of several highly sensitive channels with narrow bandwidths between 480 and 680 nm, e.g. 480, 550, 680, 760 nm, for early assessment of forest damages by remote sensing could be recommended.Keywords
This publication has 2 references indexed in Scilit:
- Relationship between discoloration and histological changes in leaves of trees affected by forest declineRemote Sensing of Environment, 1988
- A new type of forest decline in GermanyNature, 1985