NAFORMA: National Forest Resources Monitoring and Assessment of Tanzania Mainland
| dc.coverage | United Republic of Tanzania | |
| dc.creator | 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. | |
| dc.date | 2023-04-27T13:53:36Z | |
| dc.date | 2023-04-27T13:53:36Z | |
| dc.date | 2022 | |
| dc.date | 2022-08-25T10:19:39.0000000Z | |
| dc.date.accessioned | 2026-06-27T22:03:54Z | |
| dc.description | 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 TFS zone. This makes it simple to use the data. For example, mean volumes can be estimated by averages over the plots. • The selected clusters are well-spread over the target population. • The anticipated precision of land-class area and mean wood volume relative to sample size is nearly as good as that of NAFORMA I. • All proposed clusters were measured in NAFORMA I, which enables precise estimation of change based on repeated measurements. The costs and precision were anticipated by utilizing NAFORMA I field data, information about subsequent improvements in the road network, and changes in land-use using satellite imaging derived land-class maps. | |
| dc.format | 45 p. | |
| dc.format | application/pdf | |
| dc.identifier | 978-92-5-136435-2 | |
| dc.identifier | https://openknowledge.fao.org/handle/20.500.14283/cc0572en | |
| dc.identifier | http://www.fao.org/3/cc0572en/cc0572en.pdf | |
| dc.identifier.uri | http://hdl.handle.net/123456789/242042 | |
| dc.language | English | |
| dc.publisher | FAO ; | |
| dc.rights | FAO | |
| dc.rights | CC BY NC SA 3.0 IGO | |
| dc.title | NAFORMA: National Forest Resources Monitoring and Assessment of Tanzania Mainland | |
| dc.title | Sampling Design Options for 2nd Biophysical Inventory (NAFORMA II) | |
| dc.type | Book (stand-alone) |