Great Smoky Mountains National Park American Beech Monitoring

This database includes ratings of branch dieback, defoliation, beech scale and presence of Nectria spp. on high elevation American beech at least 3.5 cm in diameter...本数据库收录了针对直径至少3.5厘米的高海拔美洲山毛榉的枝条枯梢病严重度、落叶程度、山毛榉介壳虫（beech scale）侵染状况，以及赤霉属（Nectria spp.）真菌存在情况的评级数据。