Journal
REMOTE SENSING
Volume 1, Issue 3, Pages 393-407Publisher
MDPI AG
DOI: 10.3390/rs1030393
Keywords
balsam fir; biophysical surfaces; growing degree days; incident photosynthetically active radiation; landscape; MODIS imagery; temperature-vegetation wetness index; tree habitat suitability
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Funding
- Fluxnet-Canada Research Network (FCRN)
- Discovery Grant from the Natural Science and Engineering Council of Canada (NSERC)
- Fundy Community Foundation of NB, Canada
- NSERC
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In this paper we present a framework for modelling potential species distribution (PSD) of balsam fir [bF; Abies balsamea (L.) Mill.] as a function of landscape-level descriptions of: (i) growing degree days (GDD: a temperature related index), (ii) land-surface wetness, (iii) incident photosynthetically active radiation (PAR), and (iv) tree habitat suitability. GDD and land-surface wetness are derived primarily from remote sensing data acquired with the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor on the Terra satellite. PAR is calculated with an existing spatial model of solar radiation. Raster-based calculations of habitat suitability and PSD are obtained by multiplying normalized values of species environmental-response functions (one for each environmental variable) parameterized for balsam fir. As a demonstration of the procedure, we apply the calculations to a high bF-content area in northwest New Brunswick, Canada, at 250-m resolution. Location of medium-to-high habitat suitability values (i.e., >0.50) and actual forests, with >50% bF, matched on average 92% of the time.
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