Supporting code and data for: Proportion of forest area burned at high-severity increases with increasing forest cover and connectivity in western US watersheds

This is the R code and shapefiles of the coniferous HUC-12 watersheds and their western US boundary for the publication, "Proportion of forest area burned at high-severity increases with increasing forest cover and connectivity in western US watersheds" 

Methods
Please see the publication "Proportion of forest area burned at high‑severity increases with increasing forest cover and connectivity in western US watersheds" for methods.

本数据集包含用于发表论文《美国西部流域高烈度火烧森林面积占比随森林覆盖率与连通性提升而增加》的针叶林HUC-12（Hydrologic Unit Code 12-digit）流域及其所属美国西部边界的R代码与Shapefile文件。
研究方法：详见该论文。