地下水水源保护区
wellhead protection zoning
水库型饮用水水源保护区
reservoir drinking-water protected area
松花坝水源保护区
protected district of sources of water at Songhuab
protected district of sources of water at Songhuaba
饮用水水源保护区
Protected region of drinking water source
水源保护林
water protection forest
water protection forests
water conservation forest
Water resource protection forest
操作系统保护区
OSP Operation System Protect area
北京十渡自然保护区
Shidu Nature Reserve in Beijing