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TitleFire-induced changes in green-up and leaf maturity of the Canadian boreal forest
Publication TypeJournal Article
Year of Publication2008
AuthorsPeckham, S. D., Ahl D. E., Serbin S. P., & Gower S. T.
Volume112
Issue9
Pagination3594-3603
PublisherRemote Sensing of Environment
Publication Languageen
Abstract

Recent studies of vegetation phenology of northern forests using satellite data suggest that the observed earlier spring increase and peak amplitude of the normalized difference vegetation index (NDVI) are a result of climate warming. In addition to undergoing an increase in temperature, the northern forests of Canada have also seen a dramatic increase in area burned by wildfire over the same time period. Using the Canadian Large Fire Database, we analyzed the impact fire had on the phenological dates derived from fitting a logistical model to yearly data from 2004 for several different subsets of both AVHRR-NDVI and MODIS LAI in wildfire dominated terrestrial ecozones. Fire had a significant but complex effect on estimated phenology dates. The most recently burned areas (1994-2003) had later green-up dates in two ecozones for AVHRR data and all ecozones for MODIS. However, older forested (not burned during 1980-2003) had estimated green-up dates 1 to 9 days earlier than the entire forested area in the MODIS LAI data. These data corroborate studies in Canada and demonstrate that fire history is influencing boreal forest phenology and growing season LAI. Read less

URLhttp://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6V6V-4GKWJ3T-1-R&_cdi=5824&_user=1067473&_orig=search&_coverDate=07%2F30%2F2005&_sk=999029997&view=c&wchp=dGLbVtb-zSkWb&md5=886ea05cbd98e0eea6fddcda02b9f132&ie=/sdarticle.pdf
Topics

Forestry

Locational Keywords

ABR

Active Link

http://www.worldcat.org/oclc/4925710005
http://www.sciencedirect.com/science/article/pii/S0034425708001582

Group

Science

Citation Key48706

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