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Chlorophyll Content Estimation of Boreal Conifers Using Hyperspectral Remote Sensing

Inian Moorthy

出版	Ministry of Natural Resources, Ontario Forest Research Institute, 2003
URL	http://books.google.com.hk/books?id=DB9rjwEACAAJ&hl=&source=gbs_api

註釋

Using recent methodologies to systematically measure spectral properties of conifer needles, this investigation focussed on linking jack pine (Pinus banksiana) optical characteristics to forest stress indicators, such as chlorophyll concentration. The study area consisted of eight sites near Sudbury, Ontario that were selected based on their relative health condition, age, crown closure, and ease of access from road networks. Needle samples were collected from the study plots for laboratory spectral & chemical measurements. Needle reflectance & transmittance measurements were collected using an airborne spectrographic imager. The analysis presented focusses on high spatial resolution (1 metre) imagery for which tree crowns, shadows, and open understory can be identified visually and approaches can be examined for validity & effects, thereby eliminating confounding variables.