JOURNAL OF FORESTRY 



Vol. XIX JANUARY, 1921 No. 1 



The Society is not responsible, as a body, for the facts and opinions advanced 

 in the papers published by it. 



SITE DETERMINATION AND YIELD FORECASTS IN THE 

 SOUTHERN APPALACHIANS^ NEw'^vokh 

 Bv E. H. Fkc.thixg.iam BOTan.cal 



Studies in the Southern Appalachian forests have hcen handicapped 

 hy tlie complexity of the forest types and sites, and by the lack of any 

 satisfactory classification of them. While certain general resemblances 

 in composition are recognized — "hemlock type,"' "poplar type," "chest- 

 nut oak type," for example — these have not been correlated nor sub- 

 divided on the basis of site, so that data secured in one region can 

 not well be applied to an apparently similar combination or "type" in 

 another. There are also many intermediate, poorly defined combina- 

 •tions which must be dealt with but which are difficult to assign in a 

 conventional type classification. The one generally used classification — 

 into cove, slope, and ridge "types" — is adapted to estimating purposes 

 in* land acquisition, but not to the forecasting of yields nor to other 

 purposes of management. 



The purpose of this paper is to outline a simple method for classify- 

 ing the southern upland hardwoods (the poplar-oak-chestnut types) in 

 terms of site as determined by the height growth of indicator species. 

 The method is believed sufficiently well supported by field data to 

 justify its adoption as a i)ractical system for southern upland hard- 

 woods, considered as indi\iclual species or in combination in diffierent 

 types. 



SKLECTIOX OF A BASIS FOR CLASSlFlC.\TION 



^ "Cove," "slope." and "ridge," as used by the Forest Service to 

 cr> designate "types" in estimating, are distinguished by dififerences in the 

 ^ merchantable length. "Cove type" designates stands producing three 



""^ ^ Read before the Washington Section of the Society. Xovember IS, 1020. 



