@article {4245, title = {The Southern Appalachian Spruce-Fir Ecosystem: Its Biology and Threats}, year = {1984}, month = {November}, institution = {Uplands Field Research Laboratory}, address = {Gatlinburg, TN}, keywords = {Ecosystem, Flora, Fraser fir, Red spruce, Trees}, issn = {SER-71}, author = {White, Peter S} }