In?order?to?promote?the?field?research?and?biofuel?production?of?microalgae,?the?oleaginous?microalgae?was?screened?and?isolated?from?different?environments?in?Weifang,?and?the?growth?and?oil?accumulation?of?the?oleaginous?microalgae?were?studied.?The?results?showed?that?49?strains?of?microalgal?were?isolated,and?19?strains?of?oleaginous?microalgal?were?screened;?the?biomass?and?oil?content?of?the?oleaginous?microalgal?ranged?from?1.39?g/L?to?6.36?g/L?and?from?11.16%?to?45.62%?respectively;?6?strains?of?oleaginous?microalgal?with?oil?yield?over?90?mg/(L·d)?had?the?highest?oil?production?capacity?after?cultivating?for?12-15?d,?and?their?optimal?harvest?time?was?the?14th?day?after?cultivation. |