Dendroclimatic Potential of Plains Cottonwood (Populus deltoidesSubsp.Monilifera) from the Northern Great Plains, USA
| Autor: | Alan Edmondson, Julian A. Scott, Ramzi Touchan, Jesse R. Edmondson, David M. Meko, Jonathan M. Friedman |
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| Rok vydání: | 2014 |
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| Zdroj: | Tree-Ring Research. 70:21-30 |
| ISSN: | 2162-4585 1536-1098 |
| DOI: | 10.3959/1536-1098-70.1.21 |
| Popis: | A new 368-year tree-ring chronology (A.D. 1643–2010) has been developed in western North Dakota using plains cottonwood (Populus deltoides subsp. monilifera) growing on the relatively undisturbed floodplain of the Little Missouri River in the North Unit of Theodore Roosevelt National Park. We document many slow-growing living trees between 150–370 years old that contradict the common understanding that cottonwoods grow fast and die young. In this northern location, cottonwood produces distinct annual rings with dramatic interannual variability that strongly crossdate. The detrended tree-ring chronology is significantly positively correlated with local growing season precipitation and soil moisture conditions (r = 0.69). This time series shows periods of prolonged low radial tree growth during the known droughts of the instrumental record (e.g. 1931–1939 and 1980–1981) and also during prehistory (e.g. 1816–1823 and 1856–1865) when other paleoclimate studies have documented droughts in this regio... |
| Databáze: | OpenAIRE |
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