Reserve requirement is the answer to this
Very long story short, farming and sugar, as well as a port to china, east india and asia. and the islands were a prime place for a navel base.
He conserved forests and wildlife after Harold Ickes convinced him to build a wildlife reserve.
The force of events moved very quickly upon the election of Lincoln. South Carolina acted first, calling for a convention to secede from the Union. State by state, conventions were held, and the Confederacy was formed. Within three months of Lincoln's election, seven states had seceded from the Union.