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Derivation of Leaf‐Area Index from Quality of Light on the Forest Floor
Author(s) -
Jordan Carl F.
Publication year - 1969
Publication title -
ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.144
H-Index - 294
eISSN - 1939-9170
pISSN - 0012-9658
DOI - 10.2307/1936256
Subject(s) - forest floor , canopy , leaf area index , index (typography) , environmental science , ecology , tree canopy , geography , forestry , biology , ecosystem , computer science , world wide web
Leaf—area index of a forest can be measured by determining the ratio of light at 800 μm to that at 675 μm on the forest floor. It is based on the principle that leaves absorb relatively more red than infrared light, and therefore, the more leaves that are present in the canopy, the greater will be the ratio.