Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1177/0959683609104031 |
Holocene fire-related alluvial-fan deposition and climate in ponderosa pine and mixed-conifer forests, Sacramento Mountains, New Mexico, USA | |
Frechettes, Jedediah D.; Meyer, Grant A. | |
通讯作者 | Frechettes, Jedediah D. |
来源期刊 | HOLOCENE
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ISSN | 0959-6836 |
EISSN | 1477-0911 |
出版年 | 2009 |
卷号 | 19期号:4页码:639-651 |
英文摘要 | We employed Zap dating of alluvial-fan deposits in ponderosa pine and mixed-conifer forests of the Sacramento Mountains, New Mexico to document Holocene fires and related geomorphic impacts. Rapid aggradation by charcoal-rich debris flows occurred in the middle Holocene (5800-4200 cal. yr BP) indicating episodic sedimentation following severe fires. Fire-related deposition virtually ceased similar to 4200 cal. yr BP, with most fan deposits indicating slower aggradation with cumulic soil development until 1800 cal. yr BP. From 1800 to 500 cal. yr BP, fire-related sedimentation increased again, although not to middle Holocene levels. A peak in fire-related sedimentation c. 650 cal. yr BP corresponds to widespread severe drought in the southwestern USA. Limited fire-related sedimentation is evident from 500 to 100 cal. yr BP, consistent with ’Little Ice Age’ climate and tree-ring records indicating frequent low-severity fires, although at least one severe fire burned in this interval. Increased fire-related sedimentation corresponds to generally warmer conditions. We infer that higher climate variability was also involved, including multidecadal wet periods that limited surface fires and allowed stand densities to increase, promoting severe fires in subsequent severe droughts. sire has contributed significantly to Holocene valley aggradation. Local fan channel incision followed recent fires, but major nineteenth-twentieth century arroyo cutting appears unprecedented during the Holocene. |
英文关键词 | Paleofire alluvial fans sedimentary charcoal erosion geomorphology radiocarbon fire history ponderosa pine New Mexico |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000266818100010 |
WOS关键词 | YELLOWSTONE-NATIONAL-PARK ; DEBRIS-FLOW INITIATION ; WESTERN UNITED-STATES ; AMERICAN SOUTHWEST ; BLACK-HILLS ; MULTIDECADAL DROUGHT ; CHIHUAHUAN DESERT ; AGE CALIBRATION ; RADIOCARBON AGE ; MIDDLE HOLOCENE |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Physical Geography ; Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/160893 |
作者单位 | Univ New Mexico, Dept Earth & Planetary Sci, Albuquerque, NM 87131 USA |
推荐引用方式 GB/T 7714 | Frechettes, Jedediah D.,Meyer, Grant A.. Holocene fire-related alluvial-fan deposition and climate in ponderosa pine and mixed-conifer forests, Sacramento Mountains, New Mexico, USA[J],2009,19(4):639-651. |
APA | Frechettes, Jedediah D.,&Meyer, Grant A..(2009).Holocene fire-related alluvial-fan deposition and climate in ponderosa pine and mixed-conifer forests, Sacramento Mountains, New Mexico, USA.HOLOCENE,19(4),639-651. |
MLA | Frechettes, Jedediah D.,et al."Holocene fire-related alluvial-fan deposition and climate in ponderosa pine and mixed-conifer forests, Sacramento Mountains, New Mexico, USA".HOLOCENE 19.4(2009):639-651. |
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