Rajala T Heikkinen J Gogo S Ahimbisibwe J Bakanga G Chamuya N Garcia P

NAFORMA: National Forest Resources Monitoring and Assessment of Tanzania Mainland

• Author(s): Rajala, T., Heikkinen, J., Gogo, S., Ahimbisibwe, J., Bakanga, G., Chamuya, N., Garcia Perez, J., Kilawe, E., Kiluvia, S., Morales, D., Nzunda, E., Otieno, J., Sawaya, J., Vesa, L., Zahabu, E., Henry, M.

• Categories: Technology & Engineering

• Type: Book
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• Published: 2022-07-13
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• Publisher: Food & Agriculture Org.

Three options for the sampling design of the field plot clusters of NAFORMA II biophysical survey are compared in this report. Option 1 consists of re-measuring all NAFORMA I field sample plots (3 205 clusters) and Option 2 of re-measuring only those that were established as permanent (848 clusters). The recommended Option 3 is a compromise between these two “extreme” options: Re-measure a subset (1 405 clusters) of NAFORMA I field sample plots including (almost) all permanent clusters and a carefully selected set of other NAFORMA I field plot clusters to obtain a uniform sample within each TFS zone. Design Option 3 has the following features: •Sampling intensity is uniform within each...