Tree Species-Soil Reslationships on Marginal Soybean Lands in the Mississippi Delta
In the Mississippi Alluvial Plain, marginal soybean lands are those lands that are frequently flooded and have relatively low average soybean yields. These marginal farmlands might be regenerated to bottomland hardwood species if species-site relationships and silvicultural systems were better developed. Cost effective esteblishment.and management of these stands will require an understanding of species-soil compatibility as well as an appreciation of the impacts of long-term soybean cropping on this relationship. Published site selection systems are evaluated within the context of afforestation on marginal soybean land in the Delta. Projected site indices and species-site suitability is given for former soybean lands on soil series that are marginal for soybean production. Potential improvements in species-site selection methods for soybean land afforestation are discussed.