He had angered local authorities in Tomsk with a series of blogs in which he accused them of corruption and incompetence.
A statement from Tomsk's regional court said Tyumentsev had urged people to overthrow the authorities, a reference to an appeal he made for people to attend an unsanctioned meeting to protest against a rise in local bus fares.
His lawyer said the calls to participate in the rally cannot be deemed extremist and local officials were public figures so liable to receive public criticism according to Russian legislation.
He had also sharply criticized pro-Kremlin separatists in eastern Ukraine, saying he did not see why ordinary Russians should go and fight with them.
The conflict, between pro-Russian militants and Ukraine on the territory of Luhansk and Donetsk regions, has left some 9,000 people dead and more than 20,000 wounded.
In a video post, he had urged people to take hostile action against Ukrainian refugees, complaining about their presence in Tomsk and saying they should be deported.
For that, prosecutors accused him of 'animosity towards citizens residing on the territory of Luhansk and Donetsk regions of Ukraine and of 'inciting racial hatred towards people with refugee status in Russia'.
He said he will appeal after the verdict was made.
The Memorial human rights group said the jail sentence was 'outrageous and called for the verdict to be overturned.
Thats just how it is in Russian, you just can run your mouth without consequences.
