{"NOAAStudyId":"21581","contactInfo":{"address":"325 Broadway, E/NE31","city":"Boulder","constraints":"Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.","country":"USA","dataCenterUrl":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data","email":"paleo@noaa.gov","fax":"303-497-6513","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","phone":"303-497-6280","postalCode":"80305-3328","shortName":"DOC/NOAA/NESDIS/NCEI","state":"CO","type":"CONTACT INFORMATION"},"contributionDate":"2017-03-03","dataPublisher":"NOAA","dataType":"FIRE HISTORY","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/fire-history","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-fire-21581.xml","doi":null,"earliestYearBP":155,"earliestYearCE":1795,"entryId":"noaa-fire-21581","funding":[{"fundingAgency":"National Science Foundation","fundingGrant":"DEB-0640351"}],"investigators":"Yocom, L.L.; Fulé, P.Z.","mostRecentYearBP":-59,"mostRecentYearCE":2009,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/21581","originalSource":null,"publication":[{"abstract":"1. Surface fire has increasingly been regarded as a critical threat to tropical forests, but much of the research documenting degradation of tropical forests by fire comes from the low-elevation humid tropics. Fire in high-elevation tropical forests has received less research attention, but these forests are of high conservation value because they support unique ecosystems, which are often isolated due to their restriction to widely separated peaks. 2. We investigated the frequency and ecological impact of fire on a high-elevation tropical forest of Pinus hartwegii in Pico de Orizaba National Park in central Mexico. This forest was previously thought to have been degraded by excessive human-caused fires. We assessed human-caused changes to the fire regime as well as the impact of climate on fire occurrence, both previously undocumented in this region. 3. We found no increase in fire frequency or evidence of degradation of the forest. We found that the forest was uneven-aged and contained many large and old trees (maximum age 483 years). In the twentieth century, the forest experienced a frequent surface fire regime, with fires scarring trees in 90 of 100 years. However, most fires were small and asynchronous among sites. Inter-annual climatic variability was not an influential driver of fire, and El Niño–Southern Oscillation was not significantly related to the occurrence of widespread fire. 4. Synthesis and applications. Our results show that this high-elevation tropical forest has not been degraded but has existed with frequent fires for at least a century. A trend in the 21st century towards less-frequent fire could be cause for concern, as a decrease in fire frequency could lead to an increase in tree density and a loss of resilience in the face of climate change and other future disturbance. We recommend that managers take into account historical fire regimes in their local areas: frequent surface fires in the case of Pico de Orizaba. It is important to recognize that although fire can be detrimental in many low-elevation tropical forests, it is an integral part of this high-elevation tropical forest ecosystem, and other high-elevation forests may show similar patterns.","author":{"name":"Yocom, L.L., P.Z. Fulé"},"citation":"Yocom, L.L., P.Z. Fulé. 2012. Human and climate influences on frequent fire in a high-elevation tropical forest. Journal of Applied Ecology, 49, 1356-1364. ","edition":null,"identifier":null,"issue":null,"journal":"Journal of Applied Ecology","pages":"1356-1364","pubRank":"1","pubYear":2012,"reportNumber":null,"title":"Human and climate influences on frequent fire in a high-elevation tropical forest","type":"publication","volume":"49"}],"reconstruction":"N","scienceKeywords":["Pinus hartwegii Lindl.","Mexican Mountain pine","PIHR"],"site":[{"NOAASiteId":"57267","geo":{"geoType":"Feature","geometry":{"coordinates":["19","-97.32"],"type":"POINT"},"properties":{"easternmostLongitude":"-97.32","maxElevationMeters":"3913","minElevationMeters":"3913","northernmostLatitude":"19","southernmostLatitude":"19","westernmostLongitude":"-97.32"}},"locationName":"Continent>North America>Mexico","mappable":"Y","paleoData":[{"NOAADataTableId":"33377","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>fire history>fire scar dates"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/fire-hist-graphs/mxoz1001-fire-hist-graph.pdf","linkText":"mxoz1001-fire-hist-graph.pdf","urlDescription":"Fire History Graph","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>fire history>fire scar dates"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/fire-hist-graphs/mxoz1001-fire-hist-graph.png","linkText":"mxoz1001-fire-hist-graph.png","urlDescription":"Fire History Graph","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>fire history>fire scar dates"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/mxoz1001.fhx","linkText":"mxoz1001.fhx","urlDescription":"Fire Scar Data","variables":[{"cvAdditionalInfo":"FHX2 data format; refer to IMPD documentation for description of codes","cvDataType":"FIRE HISTORY|TREE RING","cvDetail":null,"cvError":null,"cvFormat":"Character","cvMaterial":"biological material>tissue>wood","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":null,"cvWhat":"formation property>event layer>tree demographic and injury and fire event code"},{"cvAdditionalInfo":null,"cvDataType":"FIRE HISTORY|TREE RING","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":null,"cvWhat":"age variable>age"}]},{"NOAAKeywords":["earth science>paleoclimate>fire history>fire scar dates"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/mxoz1001.txt","linkText":"mxoz1001.txt","urlDescription":"More Information","variables":[{"cvAdditionalInfo":"FHX2 data format; refer to IMPD documentation for description of codes","cvDataType":"FIRE HISTORY|TREE RING","cvDetail":null,"cvError":null,"cvFormat":"Character","cvMaterial":"biological material>tissue>wood","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":null,"cvWhat":"formation property>event layer>tree demographic and injury and fire event code"},{"cvAdditionalInfo":null,"cvDataType":"FIRE HISTORY|TREE RING","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":null,"cvWhat":"age variable>age"}]}],"dataTableName":"MXOZ1001","dataTableNotes":null,"earliestYear":1795,"earliestYearBP":155,"earliestYearCE":1795,"mostRecentYear":2009,"mostRecentYearBP":-59,"mostRecentYearCE":2009,"species":[{"commonName":["Mexican Mountain pine"],"scientificName":"Pinus hartwegii Lindl.","speciesCode":"PIHR"}],"timeUnit":"AD"}],"siteName":"Orizaba 1"}],"studyCode":"MXOZ1001","studyName":"Yocom fire data from Orizaba 1, eastern Transvolcanic Belt, Puebla, Mexico - IMPD MXOZ1001","studyNotes":"This site was sampled as part of a project to reconstruct historical fire regimes in northeastern Mexico. Ring-boundary fire scars were assigned to the subsequent calendar year.\n\nFire History Graphs: Fire History Graphs illustrate specific years when fires occurred and how many trees were scarred. They are available in both PDF and PNG formats. The graphs consist of 2 parts, both of which show the X axis (time line) at the bottom with the earliest year of information on the left and the latest on the right. The Fire Index Plot is the topmost plot, and shows two variables: sample depth (the number of recording trees in each year) as a blue line along the left Y axis, compared with the percent trees scarred shown as gray bars along the right Y axis. Below, the Fire Chronology Plot consists of horizontal lines representing injuries by year on individual sampled trees. Symbols are overlain that denote the years containing the dendrochronologically-dated fire scars or injuries. The sample ID of each tree is displayed to the right of each line. The Composite Axis below represents the composite information from all individual series. The symbols used to represent the fire scars or injuries, and the filters used to determine the composite information, are shown in the legend. These graphs were created using the Fire History Analysis and Exploration System (FHAES). See http://www.fhaes.org for more information.\n\n","version":"1.0","xmlId":"20508"}