Influence of Suspended Sediment and Sea Surface Temperature on Alga in Changjiang Estuary

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The main theories of spatial autoregressive model and model selection were used to study the spatial correlation between suspended sediment, sea surface temperature and alga during summer 2011 in Changjiang estuary. The results indicated that: there were significant high spatial autocorrelations in the spatial distributions of suspended sediment, sea surface temperature and alga, respectively; Suspended sediment always had significant and positive spatial correlation effect on the distribution of alga, Sea surface temperature had significant and positive spatial correlation effect on the spatial distribution of alga in June and August, but this effect decreased in July; The spatial distributions of suspended sediment and alga were closely correlated. Suspended sediment was the key dominant factor of the growth and bloom of alga, also the source of nutriment of alga.

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February 2013

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