Appendix 6.2(9). Method of conversion of 

 county-based agriculture data to Chenier 

 Plain basins. 



For each parish within a basin a value per ha was calculated from 1974 data 

 of the U.S. Department of Agriculture (1975). This was multiplied by the 

 ratio of the rural population of the parish in the basin to the total rural 

 population in the parish. This value was summed for all parishes impinging 

 on a basin. 



Value/ha/basin ■ 2 



Value/ha/parish Rural population of parish in basin 

 Total rural population of parish 



where n = parishes in a basin 



BASIN 



Vermilion 



Chenier 



PARISH 



1,220 



Mermentau 



4,452 



3,522 

 7,974 



0.56 x x 

 0.44 x x 



Vermilion 



Cameron 



Calcasieu 



2,422 

 7,368 

 9,790 



0.25 x x 

 0.75 x X 



Cameron 



Calcasieu 



Sabine, La. 



1,372 

 1,008 

 2,480 



0.58 x x 

 0.42 x x 



Cameron 



Calcasieu 



continued 



57 



