<jats:p>Chihuahueños Bog (2925 m) in the Jemez Mountains of northern New Mexico contains one of the few records of late-glacial and postglacial development of the mixed conifer forest in southwestern North America. The Chihuahueños Bog record extends to over 15,000 cal yr BP. An<jats:italic>Artemisia</jats:italic>steppe, then an open<jats:italic>Picea</jats:italic>woodland grew around a small pond until ca. 11,700 cal yr BP when<jats:italic>Pinus ponderosa</jats:italic>became established. C/N ratios,<jats:italic>δ</jats:italic><jats:sup>13</jats:sup>C and<jats:italic>δ</jats:italic><jats:sup>15</jats:sup>N values indicate both terrestrial and aquatic organic matter was incorporated into the sediment. Higher percentages of aquatic algae and elevated C/N ratios indicate higher lake levels at the opening of the Holocene, but a wetland developed subsequently as climate warmed. From ca. 8500 to 6400 cal yr BP the pond desiccated in what must have been the driest period of the Holocene there. C/N ratios declined to their lowest Holocene levels, indicating intense decomposition in the sediment. Wetter conditions returned after 6400 cal yr BP, with conversion of the site to a sedge bog as groundwater levels rose. Higher charcoal influx rates after 6400 cal yr BP probably result from greater biomass production rates. Only minor shifts in the overstory species occurred during the Holocene, suggesting that mixed conifer forest dominated throughout the record.</jats:p>

Development of the mixed conifer forest in northern New Mexico and its relationship to Holocene environmental change

North America>United States Of America>New Mexico

Assume it is 15% (Kohefled and Harrison, 2003)

Data collected from Albani et al 2015 10.5194/cp-11-869-2015

DMAR (WEB0f8ede48): paleoData_proxyLumps: 'partical size' has been replaced by 'biophysical'
DMAR (WEB0f8ede48): paleoData_proxyLumpsOriginal: '' has been replaced by 'particle size'

DMAR_error (WEBf2978cbd): interpretation1_scope: 'climate' has been replaced by ''