| ![](../images/dot_clear.gif) | ![](../images/669corner-ul.gif) | Lake Pontchartrain Atlas: | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | Environmental Issues | ![You are at the Environmental Issues section of the Environmental Atlas of Lake Pontchartrain](../images/pointer.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | ![](../images/dot_clear.gif) | | ![](../images/669corner-ll.gif) | | ![](../images/dot_clear.gif) | | ![](../images/dot_clear.gif) | ![](../images/dot_clear.gif) | ![](../images/dot_clear.gif) | | | ![](../images/spacer.gif) | Environmental Issues - Coastal Land Loss Contributors: Penland, Beall, Britsch, Williams Lake Pontchartrain Basin Land Loss - Process Classification | Erosion | Submergence | Direct Removal | ![](images/pg132-legdkpurple.gif) | Natural Waves | ![](images/pg132-legdk-pink.gif) | Alt. Hydro. Impoundment | ![](images/pg132-leg-black.gif) | Oil/Gas Channels | ![](images/pg132-legpurple.gif) | Navigation Waves | ![](images/pg132-legbrown-yell.gif) | Alt. Hydro. Oil/Gas | ![](images/pg132-leg-color.gif) | Navigation Channels | ![](images/pg132-leglt-purple.gif) | Channel Flow | ![](images/pg132-legpink.gif) | Alt. Hydro. Roads | ![](images/pg132-legorng.gif) | Drainage Channels | Existing | ![](images/pg132-legteal.gif) | Alt. Hydro. Multiple | ![](images/pg132-legyellow.gif) | Access Channels | ![](images/pg132leg-green.gif) | Land | ![](images/pg132-leglt-blue.gif) | Natural Water Logging | ![](images/pg132-leglt-green.gif) | Borrow Pits | ![](images/pg132leg-brightblue.gif) | Water | ![](images/pg132-legbrown.gif) | Failed Land Reclamation | | | ![](images/pg132leg-gray.gif) | Out of Study Area | ![](images/pg132leg-cream.gif) | Herbivory | | | Class | Area Acres | Percent Loss | Erosion | Natural Waves | 55,603.34 | 29.52% | Navigation Waves | 3,138.79 | 1.67% | Channel Flow | 6,333.97 | 3.36% | Subtotal | 65,076.10 | 34.55% | Submergence | Alt. Hydro. Impoundment | 4,480.04 | 2.38% | Alt. Hydro. Oil/Gas | 16,714.63 | 8.87% | Alt. Hydro. Roads | 4,766.56 | 2.53% | Alt. Hydro. Multiple | 54,513.86 | 28.94% | Natural Water Logging | 11,188.25 | 5.94% | Failed Land Reclamation | 7,091.13 | 3.76% | Herbivory | 560.55 | 0.30% | Subtotal | 99,315.02 | 52.73% | Direct Removal | Oil/Gas Channels | 12,780.72 | 6.79% | Navigation Channels | 6,787.35 | 3.60% | Drainage Channels | 0.13 | <0.01% | Borrow Pits | 3,116.54 | 1.65% | Access Channels | 1,279.79 | 0.68% | Subtotal | 23,964.52 | 12.72% | Total | 188,355.65 | 100.00% | | Figure 3: Process Classification of Coastal Land Loss Between 1932 and 1990 in the Mississippi River Delta Plain, SE Louisiana. | « Previous | Next » |