House, C., J. Goebel, H. Schreuder, P. Geissler, B. Williams, and Anthony R. Olsen. 1998. Prototyping on for inter-agency terrestrial inventory and monitoring: a statistical perspective. Environmental Monitoring and Assessment 51:451-463.
A demonstration project in Oregon examined the feasibility of combining Federal environmental monitoring surveys. An integrated approach should remove duplication of effort and reduce the possibility of providing apparently conflicting information to policy makers and to the public. Data collection teams made phot interpretation measurements and on-site soil/vegetation/animal observations on locations that were selected from the Forest Inventory and Analysis (FIA), National Forest System (NFS) Region 6, and National Resource Inventory (NRI) surveys in a six-county area in Northern Oregon. The project demonstrated the feasibility of conducting a combined FIA/NFS/NRI survey and suggests an approach that will preserve the utility of the critical historic information from these surveys. We suggest a framework for estimating the extent of forest and range land that explains FIA/NRI differences and provides a common basis for both surveys. We suggest indicator and protocol criteria that will allow consistent national and regional estimates over all vegetation types and stress the importance of including measurement repeatibility in the design of the combined survey.