( KTRS ) Voters in Missouri will decide this fall whether to extend a sales tax that funds state parks and conservation projects.

Gov. Jay Nixon announced Monday that the ‘one-tenth of a cent’ sales tax will appear on the November ballot.

The tax is written into the state constitution, but voters must reauthorize it every 10 years. The state has approved $348 million in conservation grants since the tax was re-approved in 2006.

Officials say those projects have prevented more than 177 million tons of soil erosion into streams, rivers and lakes.