Table 3.70. Summary of natural and cultural features of Chenier Basin (continued). 



C. Habitats of Chenier Basin 



CI. Habitat area in 1974 and net changes since 1952 



Habitat 



Changes in area 1952 to 1974 



(ha) (%) 



Nearshore Gulf 

 Inland open water 

 Natural marsh 

 Impounded marsh 

 Swamp forest 

 Natural ridge 

 Spoil 

 Rice field 

 Non-rice cropland 

 Pasture 

 Urban 

 Beach 



Upland forest 

 Total 



195,447 



1 hectare (ha) = 2.47 acres (a) 



Calculation excludes area of nearshore Gulf habitat 



C2. Habitat modification from 1952 to 1974 due to identifiable human activities 



Cause of change 



Habitat 



1952 



Area 

 (ha) 



Changed to (by 1974) 

 Area 

 Habitat (ha) 



Change in 1974 as 

 percent of 

 original 

 1952 habitat 



Filling and draining 

 Impounding 



Canal dredge and spoil 

 Upland construction 



Natural marsh 41,969 



Natural marsh 41,969 



Inland open water 5,140 



Natural marsh 41,969 



Inland open water 5,140 



Natural ridge 3,288 



Natural ridge 3,288 



Agriculture 3,077 



Urban 22 



Impounded marsh 

 Impounded marsh 



Inland open water(canal) 590 



Spoil 



Spoil 



Agricultural 



Urban 



Urban 



0.05 



continued 



115 



