The Mississippi Delta, a gigantic bird’s foot shape extending into the Gulf of Mexico, has been molded by time, weather, and human action. The Mississippi River discharges silt into the ocean, and NASA Landsat satellites have tracked changes in the Delta’s form over the last 25 years. It is essential to know about Land for Sale. DeSoto’s expedition in the early 1540s established Spanish claims to the Delta region.
Despite their brief presence in the region, the Spanish left their cultural imprint on life in the Delta’s southern reaches. The notable architecture of the French Quarter, for example, has a distinct Spanish influence. In 1682, Frenchman Sieur de La Salle sailed down the Mississippi River to the Gulf of Mexico, claiming the entire Mississippi River watershed for Louis XIV. Arkansas Post, a French colony, became the region’s first permanent white settlement in 1686.
The French created a line of posts and colonies from present-day Mobile, Alabama, and Ste. Genevieve northeastward to Detroit when Pierre le Moyne Iberville brought colonists to present-day Biloxi, Mississippi, in 1699. In the 18th century, a significant French presence grew throughout the Lower Mississippi Delta region. The Acadians, who came to Louisiana, are possibly the most peculiar of all the French descendants.
Know about the deltaic river cycle
The Mississippi River has had a significant impact on coastal Louisiana’s landforms. The entire area was formed by silt deposition after the most recent rise in sea level, which occurred roughly 5,000 years ago. A distributary’s progressive capture of the Mississippi River that offered a shorter route to the Gulf of Mexico began each Mississippi River deltaic cycle. Compaction, subsidence, and erosion would occur after an earlier delta lobe abandonment, which would cut off the principal supply of fresh water and sediment. As the gulf expanded, the old delta lobe began to withdraw, generating lakes, bays, and sounds. At the same time, a new delta lobe would start moving gulfward.
The Mississippi River Delta Basin encompasses approximately 521,000 acres of land and shallow estuary water in the active Mississippi River delta. Open water covers around 83 percent of this area or 420,000 acres. Low relief characterizes the basin’s 101,100 acres, with natural channel banks and dredging material disposal regions along the Mississippi River, its passes, and man-made channels being the most notable characteristics. Coastal marshes cover around 61,650 acres in the Mississippi River Delta Basin or about 61 percent of the total land area. This marsh is fresh 81% of the time, intermediate 17% of the time, and brackish-saline 2%.
About 41% of the contiguous 48 states’ headwater flows are discharged into the Mississippi River. The Mississippi River’s discharges average 470,000 cubic feet per second daily over a long period. Once every 16 years, a peak discharge of approximately 1,250,000 CFS occurs downstream of New Orleans. Subsidence and compaction are the principal causes of wetlands loss in the Mississippi River Delta Basin. Unlike other parts of coastal Louisiana, the Mississippi River delta has a plentiful supply of inflowing fresh water and sediments. Despite the availability of these resources, emerging Delta’s general expansion has been slowed in recent years.