05/11/11 made change to paragraph under the heading "The Conservation Reserve Program" on page 7:

Changed:

"The U.S. Department of Agriculture NASS CRP annual cumulative enrollment statistics show that overall, acres enrolled in the CRP in the ecoregion generally declined over the study period (fig. 4)."
 

To:

"The U.S. Department of Agriculture NASS CRP annual cumulative enrollment statistics show that overall, acres enrolled in the CRP in the ecoregion declined slightly in the later portion of the study period (fig. 4)."