Journal of Ecology and Rural Environment ›› 2016, Vol. 32 ›› Issue (3): 439-444.doi: 10.11934/j.issn.1673-4831.2016.03.016

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Inversion of Climate Data of the Past 300 Years of a Region Typical of the Northern Daxing'anling Range

QU Hui-hui, ZHAO Hui-ying, GONG Li-juan   

  1. Heilongjiang Province Institute of Meteorological Sciences, Harbin 150030, China
  • Received:2015-05-13 Online:2016-05-25 Published:2016-05-27

Abstract:

Inversion of historical climate data based on widths of tree-rings is an important foundation for the study on climate change and utilization of climatic resources. A climate reconstruction model was set up based on width of tree-rings of the trees in the Angelin forest farm and the Xinqing forest farm in the northern Daxing'anling Range and their correlations with the temperatures, precipitations and hours of sunshine around the neighboring weather stations, with significance levelbeing over 0.25 and average relative error being below 30%. Results show that among the factors studied in this project, temperature is the major one affecting width of tree-rings the most and hours of sunshine, the least in the region. Among the equations for climatic reconstruction, the equation based on temperature is the highest in significance level, while the equation based on hours of sunshine, the lowest. The simulation using factors, like hours of sunshine is generally lower than 10% in average relative error, while the one using factors, like temperature and precipitation, is lower than 30%. Within the designated scope of conditions, 11, 9 and 11 models are established, respectively, for reconstruction of temperature, precipitation and sunshine data of the region, respectively, and can be used to inverse the climate data of the years from 1707 (1706) to 1959 or from 1866 (1865) to 1959. Consequently, the climate data available for study of the region is greatly expanded to cover about 300 (or 150) years.

Key words: regions typical of the northern Daxing'anling Range, tree ring, climate data, correlation, reconstruction equation

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