I am a graduated student in China. Now I expect to get your help for how to do when I want to adjust the vegetation cover over small region(25SN*40WE) to see the impact on the domain(80SN*150WE) while running RegCM3,now I just know to do this may should be modefied the vegc in BLOCKDATA001.F. However, how?in detail?

thanks for your enthusiastic help