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Volume 14, issue 8 | Copyright
Clim. Past, 14, 1213-1228, 2018
https://doi.org/10.5194/cp-14-1213-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 15 Aug 2018

Research article | 15 Aug 2018

Response of Pinus sylvestris var. mongolica to water change and drought history reconstruction in the past 260 years, northeast China

Liangjun Zhu1,2, Qichao Yao1, David J. Cooper2, Shijie Han3,4, and Xiaochun Wang1 Liangjun Zhu et al.
  • 1School of Forestry, Northeast Forestry University, Harbin 150040, China
  • 2Department of Forest and Rangeland Stewardship, Colorado State University, Fort Collins, CO 80523, USA
  • 3School of Life Science, Henan University, Kaifeng 475004, China
  • 4Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China

Abstract. We present a 260-year annual Palmer drought severity index (PDSI) reconstruction based on a tree-ring width chronology of Scots pine (Pinus sylvestris var. mongolica) from four sample sites in the central Daxing'an Mountains, northeast China. The reconstruction equation explained 38.2% of the variance of annual PDSI in the calibration period from 1911 to 2010. Our reconstruction confirmed the local historical documents and other nearby hydroclimate reconstructions. Drought in the 1920s–1930s was more severe in the Daxing'an Mountains than in the surrounding areas. A slight moisture increase was identified in the study area, while a warm–dry pattern was found in the west-central Mongolian Plateau (mildly drier) and its transition zones: the west-central Mongolian Plateau (severely drier). Overall, the variation of drought in the Daxing'an Mountains and its relationship with surrounding areas may be affected by the Pacific or Atlantic oscillations (e.g., ENSO, PDO, AMO, NAO and SNAO), which can affect the Asian monsoon, change the local temperature and precipitation, and lead to drought.

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This paper presents a 260-year tree-ring-based PDSI reconstruction for the central Daxing'an Mountains, northeast China. A warm–wet pattern was identified for the Daxing'an Mountains in recent decades, while a warm–dry pattern was found for the Mongolian Plateau. Overall, the dry/wet variability of the Daxing'an Mountains and its relationship with the surrounding areas might be driven by Pacific and Atlantic Ocean oscillations.
This paper presents a 260-year tree-ring-based PDSI reconstruction for the central Daxing'an...
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