Great Smoky Mountains National Park American Holly Monitoring

The data is from a multi-year study of the impact of an unidentified defoliator. Collected data include: diameter, height, crown class, percent live crown ratio,...本数据集源自一项针对未鉴定食叶害虫（unidentified defoliator）影响的多年期研究。所采集的数据包括：直径、树高、树冠级（crown class）、活冠比（percent live crown ratio）等。