Protected Areas Database of the United States (PAD-US) 2.0

NOTE: A more current version of the Protected Areas Database of the United States (PAD-US) is available: PAD-US 2.1 https://doi.org/10.5066/P92QM3NT. The USGS...注：美国保护区数据库（Protected Areas Database of the United States，PAD-US）的更新版本现已发布：PAD-US 2.1，相关链接为https://doi.org/10.5066/P92QM3NT。美国地质调查局（United States Geological Survey，USGS）……