Rapid estimation of coniferous forest leaf area index using a portable integrating radiometer

L. L. Pierce, S. W. Running

Research output: Contribution to journalArticlepeer-review

231 Scopus citations

Abstract

Canopy transmittance was measured at 1200 and 1400 local solar time using an integrating radiometer on 7 coniferous forest stands in W Montana, ranging in projected leaf area index (LAI) from 1.7-5.3 m2/m2. Transmittance of each 1 ha stand was measured at 96 000 points, yet measurement required <1 h because the instrument instantaneously integrates 80 radiometer measurements. The technique has a wide applicability given the range of LAIs, stand densities (450-4140 trees/ha) and illumination angles (32-57°) under which it was tested. -Authors

Original languageEnglish
Pages (from-to)1762-1767
Number of pages6
JournalEcology
Volume69
Issue number6
DOIs
StatePublished - 1988

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