The Natural Heritage Resource Inventory (NHRI), which was conducted between 2005 and 2008, provides Arlington County with natural resources data so it can systematically define and address issues relating to the protection and management of natural resources within the County. This Natural Resources Management Plan (NRMP), which resulted from the NHRI and was called for in the 2005 Public Spaces Master Plan, defines natural resource problems and recommends policies and actions to preserve Arlington’s documented natural resources for future generations. In offering a strategic approach, this Plan views natural resource management through both broad and narrow lenses. This layered strategy, in addition to offering new concepts, identifies areas for agency cooperation, reduces redundancies and leverages current efforts. Most importantly, this approach emphasizes the importance of managing natural resources as a unified system rather than a set of unrelated natural features.