Table 25. Effect of several different mitigation techniques 

 for reducing wetland loss (Craig and Day 1981) . 



Activity Reduction in wetland loss rate 



km 2 /yr 



Atchafalaya River 



New delta growth 11.9 



Reversal of Chenier Plain 



beach retreat 1.1 



Infilling of older marshes 4.9 



Total 17.9 



Controlled Diversions Lower 

 c 

 Mississippi River 1-3 



Prohibition or strict regulation 



of new canals 13-36 



^Craig and Day (1981) . 

 This value assumes the present net rate of shoreline 

 retreat will be arrested. The net rate of retreat was 

 calculated as the algebraic sum of shoreline changes for 

 each interval along the Chenier Plain as given in Adams 

 et al. (1978). 



^Gagliano et al. (1981) . 

 High estimate from Turner et al. (1982), low estimate 

 from Deegan et al. (1982). 



164 



