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Published byEthelbert Lawrence Modified over 9 years ago
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Canopy Forest Cover Change in Fanjingshan National Nature Reserve: “What measurable environmental changes have taken place after implementing payment for ecosystem programs?” How reliably are we able to measure canopy fraction cover (CFC) and change in CFC (ΔCFC) within FNNR based on multitemporal Landsat data? Which areas appear to have undergone substantial ΔCFC and what was the cause of this change?
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Satellite Data Landsat TM/ETM+ for May 2000 and April 2009 RapidEye multispectral image data for Dec 2009 High spatial resolution imagery for 2014 Start building Landsat 8 OLI time series
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Canopy Fractional Cover (CFC) V = Vegetation index (e.g., MSAVI) pixel = given Landsat pixel canopy = 100% canopy endmember open = 100% bare ground endmember
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Change in Canopy Fractional Cover (ΔCFC)
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Analyses Explore effects of different radiometric normalization (PIF and histogram matching) Explore sensitivity to different canopy and open endmembers Compare indirect and direct ΔCFC mapping approaches Examine spatial distribution and apparent causes of ΔCFC
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Landsat TM Red (x axis) and NIR (y axis) feature space May 2000 (left) and April 2009 (right)
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