Tree Health Aerial Survey GB 2013

Flights are undertaken by helicopter to identify areas of suspicious larch that require inspection, to target specific tree and plant health issues and to generally observe national tree, woodland and forest health. Flights are also used to check for compliance with Statutory Plant Health Notices Attribution statement: Contains OS data © Crown copyright [and database right] [year].本次飞行任务以直升机实施，旨在甄别需开展检疫检查的疑似染病落叶松（larch）区域，针对特定林木与植物健康问题开展靶向排查，并全面监测全国范围内的树木、林地及森林健康状况。此类飞行同时用于核查相关主体是否符合法定植物健康通知（Statutory Plant Health Notices）。数据归属声明：本数据集包含OS数据，受英国皇家版权及数据库版权保护，©[年份]。