Sub-catchment watersheds with associated losses due to HWA

Polygon delineations of sub-catchment watersheds (HUC12) with associated statistics (mean, sd, and max) for BA losses and percent BA losses due to HWA for the stream buffer widths (50-, 100-, and 200-ft) for the period 2013-2027 (USFS 2012).

本数据集包含基于12位水文单元代码（HUC12）划定的子汇水流域多边形边界，附带2013至2027年期间、50英尺、100英尺及200英尺溪流缓冲带范围内，由铁杉球蚜（Hemlock Woolly Adelgid, HWA）引发的断面积（Basal Area, BA）损失及断面积损失百分比的相关统计量，涵盖均值、标准差与最大值，数据来源为USFS 2012年报告。