Abstract
Forests cannot be managed sustainably without reliable data to inform decisions. National Forest Inventories (NFI) tend to report national statistics, with sub-national stratification based on domestic ecological classification systems. It is becoming increasingly important to be able to report statistics on ecosystems that span international borders, as global change and globalization expand stakeholders’ spheres of concern. The state of a transnational ecosystem can only be properly assessed by examining the entire ecosystem. In global forest resource assessments, it may be useful to break national statistics down by ecosystem, especially for large countries. The Inventory and Monitoring Working Group (IMWG) of the North American Forest Commission (NAFC) has begun developing a harmonized North American Forest Database (NAFD) for managing forest inventory data, enabling consistent, continental-scale forest assessment supporting ecosystem-level reporting and relational queries. The first iteration of the database contains data describing 1.9 billion ha, including 677.5 million ha of forest. Data harmonization is made challenging by the existence of definitions and methodologies tailored to suit national circumstances, emerging from each country’s professional forestry development. This paper reports the methods used to synchronize three national forest inventories, starting with a small suite of variables and attributes.










Similar content being viewed by others
Explore related subjects
Discover the latest articles and news from researchers in related subjects, suggested using machine learning.References
Bailey, R. G. (1998). Ecoregion map of North America. USDA FS Publication No 1548.
Bailey, R. G. (2009). Ecoregions: ecosystem geography from ecoregions to sites (second edition). Springer-Verlag.
Bastin, J.-F., Berrahmouni, N., Grainger, A., Maniatis, D., Mollicone, D., Moore, R., Patriarca, C., Picard, N., Sparrow, B., Abraham, E. M., Aloui, K., Atesoglu, A., Attore, F., Bassüllü, Ç., Bey, A., Garzuglia, M., García-Montero, L. G., Groot, N., Guerin, G., Laestadius, L., Lowe, A. J., Mamane, B., Marchi, G., Patterson, P., Rezende, M., Ricci, S., Salcedo, I., Diaz, A. S. P., Stolle, F., Surappaeva, V., & Castro, R. (2017). The extent of forest in dryland biomes. Science, 356, 635–638.
Bechtold, W. A., Patterson, P. L. (Editors) (2005). The enhanced forest inventory and analysis program—national sampling design and estimation procedures. Gen. Tech. Rep. SRS-80. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 85 p.
Boudewyn, P., Song, X., Magnussen, S., Gillis, M. D. (2007). Model-based volume-to-biomass conversion for forested and vegetated land in Canada. Natural Resources Canada. Canadian Forest Service. Pacific Forestry Centre. Victoria, British Columbia. Information Report BC-X-411. 111 p.
CEC (Commission for Environmental Cooperation) (1997). Ecological regions of North America: toward a common perspective. Commission for Environmental Cooperation. Montreal, Canada. http://www.cec.org/pubs_info_resources/publications/pdfs/english/eco-eng.pdf.
CEC (Commission for Environmental Cooperation) (2011). North American forests, 2011. http://www.cec.org/Page.asp?PageID=924&ContentID=25137&AA_SiteLanguageID=1.
Cochran, W. G. (1977). Sampling techniques. New York: Wiley 380 p.
Comisión Nacional Forestal (CONAFOR) (2012). Inventario Nacional Forestal y de Suelos. Informe 2004–2009. http://www.cnf.gob.mx:8080/snif/portal/infys/temas/resultados-2004-2009.
CONAFOR (Comisión Nacional Forestal) (2009–2015). Manual de procedimientos de campo: http://www.cnf.gob.mx:8090/snif/portal/infys/temas/documentos-metodologicos.
Dudley, N., (editor) (2008). Guidelines for applying protected area management categories. IUCN. Available online at http://www.iucn.org/about/work/programmes/gpap_home/gpap_capacity2/gpap_pub/gpap_catpub/?13959/.
Falkowski, M. J., Wulder, M. A., White, J. C., & Gillis, M. D. (2009). Supporting large-area, sample-based forest inventories with very high spatial resolution satellite imagery. Progress in Physical Geography, 33(3), 403–423.
FAO (Food and Agriculture Organization of the United Nations) (2010). Global forest resources assessment 2010. FAO Forestry Paper 163. http://www.fao.org/forestry/fra/fra2010/en/.
FAO (Food and Agriculture Organization of the United Nations) (2012a). Global ecological zones for FAO forest reporting: 2010 Update. FRA Working Paper 179. http://www.fao.org/docrep/017/ap861e/ap861e00.pdf.
FAO (Food and Agriculture Organization of the United Nations) (2012b). FRA 2015 Terms and definitions. FRA Working Paper 180. http://www.fao.org/docrep/017/ap862e/ap862e00.pdf.
FAO (Food and Agriculture Organization of the United Nations) (2013). Joint Forest Europe/UNECE/FAO questionnaire on pan-European quanititave indicators for sustainable forest management. https://www.unece.org/forests/areas-of-work/forest-resources/methods-and-processes/pan-european-reporting-2015.html.
FAO (Food and Agriculture Organization of the United Nations) (2015a). Global Forest resources assessment 2015: how are the world’s forests changing? Rome, Italy.
FAO (Food and Agriculture Organization of the United Nations) (2015b). Global forest resources assessment 2015: desk reference. Rome, Italy.
Gillis, M. D., Leckie, D. G. (1993). Forest inventory mapping procedures across Canada. Forestry Canada, Petawawa National Forestry Institute, Chalk River. Information Report PI-X-114.
Gillis, M. D., Omule, A. Y., & Brierley, T. (2005). Monitoring Canada’s forests: the National Forest Inventory. Forestry Chronicle, 81(2), 214–221.
Girardin, M. P., Bouriard, O., Hogg, E. H., Kurz, W. A., Zimmermann, N. E., Metsaranta, J., de Jong, R., Frank, D., Esper, J., Buntgen, U., Guo, X. J., & Bhatti, J. S. (2016). No growth stimulation of Canada’s boreal forest under half-century of combined warming and CO2 fertilization. PNAS, 113, E8406–E8414 http://www.pnas.org/content/113/52/E8406.full.
INEGI-Conabio-INE (2008). Ecorregiones de México, Nivel IV, escala 1:1 000 000. Instituto Nacional de Estadística, Geografía e Informática - Comisión Nacional para el Conocimiento y Uso de la Biodiversidad-Instituto Nacional de Ecología. México. http://www.conabio.gob.mx/informacion/metadata/gis/ecort08gw.xml?_xsl=/db/metadata/xsl/fgdc_html.xsl&_indent=no.
Keenan, R. J., Reams, G. A., Achard, F., de Freitas, J. V., Grainger, A., & Lindquist, E. (2015). Dynamics of global forest area: Results from the 2015 UN FAO Global Forest Resources Assessment. Forest Ecology and Management, 352, 9–20. https://doi.org/10.1016/j.foreco.2015.06.014.
Köhl, M., Lasco, R., Cifuentes, M., Jonsson, O., Korhonen, K. T., Mundhenk, P., de Jesus Navar, J., & Stinson, G. (2015). Changes in forest production, biomass and carbon: results from the 2015 UN FAO global forest resources assessment. Forest Ecology and Management, 352, 21–34. https://doi.org/10.1016/j.foreco.2015.05.036.
Köppen. (1931). Grundrisse der Klimakunde, Walter de Gruyter Co.
Kurz, W. A., Dymond, C. C., Stinson, G., Rampley, G. J., Neilson, E. T., Carroll, A. L., Ebata, T., & Safranyik, L. (2008). Mountain pine beetle and forest carbon feedback to climate change. Nature, 452, 987–990. https://doi.org/10.1038/nature06777.
Le Quere, C., Andrew, R. M., Friedlingstein, P., et al. (2017). Global Carbon Budget 2017. Earth System Science Data. https://doi.org/10.5194/essd-2017-123.
Lund, H.G. (2003). North American ecoregion database project. Report prepared for the USDA Forest Service by Management and Engineering Technologies International Inc. (METI). Washington, DC.
MacDicken, K. G. (2015). Global forest resources assessment 2015: what, why and how? Forest Ecology and Management, 352, 3–8. https://doi.org/10.1016/j.foreco.2015.02.006.
Morales-Hidalgo, D., Oswalt, S. N., & Somanathan, E. (2015). Status and trends in global primary forest, protected areas, and areas designated for conservation of biodiversity from the Global Forest Resources Assessment 2015. Forest Ecology and Management, 352, 68–77. https://doi.org/10.1016/j.foreco.2015.06.011.
NFI (2008) Canada’s National Forest Inventory National Standard for photo plots. Data Dictionary. Version 4.2.4. January 2, 2008. Available at https://nfi.nfis.org/en/photo_plot (accessed 2018–01-05).
Oswalt, S.N., Smith, W.B., Miles, P.D., Pugh, S.A. (2014). Forest resources of the United States, 2012: a technical document supporting the Forest Service 2015 update of the RPA assessment. Gen. Tech. Rep. WO-91. Washington, DC: U.S. Department of Agriculture, Forest Service, Washington Office. 218 p.
Shaw, C. H., Hilger, A. B., Metsaranta, J., Kurz, W. A., Russo, G., Eichel, F., Stinson, G., Smyth, C., & Filiatrault, M. (2013). Evaluation of simulated estimates of forest ecosystem carbon stocks using ground plot data from Canada’s National Forest Inventory. Ecological Modelling, 272, 323–347.
Stinson, G., Magnussen, S., Boudewyn, P., Eichel, F., Russo, G., Cranny, M., & Song, A. (2016). Chapter 12 – Canada. In C. Vidal, I. Alberdi, L. Hernandez, & J. Redmond (Eds.), National forest inventories—assessments of wood availability and use. Springer.
Tomppo, E., Gschwantner, T., Lawrence, M., & McRoberts, R. E. (Eds.). (2010). National forest inventories, pathways for common reporting. Springer.
Trewartha, G. T. (1968). An introduction to weather and climate. McGraw-Hill.
USFS (United States Forest Service). (2018). Forest sustainability reporting in the United States. https://www.fs.fed.us/research/sustain/
Velasco Bautista, E., Ramírez Maldonado, H., Moreno Sánchez, F., & De la Rosa Vázquez, A. (2005). Estimadores de razón para el inventario nacional forestal de México. Revista Mexicana De Ciencias Forestales, 28(94), 23–43.
Vidal, C., Alberdi, I., Redmond, J., Vestman, M., Lanz, A., Schadauer, K. (2016). The role of European National Forest Inventories for international forestry reporting. Annals of Forest Science, 73(4), 793–806
Wulder, M. A., White, J. C., Cranny, M., Hall, R. J., Luther, J. E., Beaudoin, A., Goodenough, D. G., & Dechka, J. A. (2008). Monitoring Canada’s forests. Part 1: Completion of the EOSD land cover product. Canadian Journal of Remote Sensing, 34(6), 549–562.
Acknowledgements
The authors gratefully acknowledge the United States Department of Agriculture Forest Service, Comisión Nacional Forestal Mexico, Natural Resources Canada, and the Ministry of Natural Resources, Ontario, for their support of this effort. We also thank the United Nations Food and Agriculture Organization, and the North American Forestry Commission and Bureau of Alternates for their support. In addition, we are grateful to the data collection and information management staff of all three countries. We thank anonymous reviewers for their constructive critiques and helpful suggestions.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Smith, W.B., Cuenca Lara, R.A., Delgado Caballero, C.E. et al. The North American Forest Database: going beyond national-level forest resource assessment statistics. Environ Monit Assess 190, 350 (2018). https://doi.org/10.1007/s10661-018-6649-8
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s10661-018-6649-8

