Answer: See in explanation
The destruction that took place in Louisiana plantations was a sight to behold. With both Union and Confederate armies bombing buildings and destroying towns, estimated losses add up to around $500 million.
Because of their freedom, and all this chaos among the folk in power, the African American people tried to get land of their own. The government even promised these people "40 acres and a mule". Of course, this promise went unfulfilled, around 5% of former slaves in Louisiana and other ex-Confederate states owned their own land. Those who did have land didn't have the funds to develop it. Louisiana wasn't doing well for the first year after the emancipation, but in 1871 cotton farmers started a new union, the state only grew from there.