Gross primary production in Phyllostachys edulis based on MODIS

To analyze gross primary production(PGP) of Phyllostachys edulis from Shanchuan Village in Anji County, Zhejiang Province in 2011, the vegetation photosynthesis model(VPM) which was developed by integrating MODIS(Moderate-resolution Imaging Spectroradiometer)and flux measurements was used. Results showed that PGPVPM(1 848.54 g·m-2)was consistent with results from Shanchuan carbon flux site(1 899.69 g·m-2) having a relative tolerance of 2.69%. Though total PGP was similar, some differences occurred especially in the growing season, PGPVPM were higher than PGPobs. The correlation of PGPVPM to PGPobs was 0.747 and the correlation coefficient was 0.864. Further, time-series data for the IEV have a stronger linear relationship with the PGP than those for the Normalized Difference Vegetation Index. Results of this study demonstrate that the satellite-driven VPM has been potential for estimating site-level or regional Phyllostachys edulis PGP.