| Autor: |
Qin Ningsheng, C.W., Shao Xuemei, Jin Liya, Wang Qingchun, C.W., Zhu Xide, C.W., Wang Zhenyu, C.W., Li Jinbao, C.W. |
| Předmět: |
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| Zdroj: |
Chinese Science Bulletin; Nov2003, Vol. 48 Issue 22, p2483-2487, 5p |
| Abstrakt: |
Discusses how two tree ring-width chronologies of Sabina tibetica were developed based on cores sampled on Qumalai and Zhiduo, southern Qinghai Plateau. How the response function analysis showed that the chronologies were sensitive to temperature and precipitation from April to June in the plateau; Reference to how the moisture index (MI) was defined, reconstructed and extended back to AD 1550; Use of the cross-validation method to check the stability of the calibration equation; How the result indicated that the equation was stable; Consideration of how six severe dry periods were found in this region in the past 453-year reconstructions; How pectrum analysis indicated that there existed long-term cycles of 60.4 and 53.4 a, solar cycle of 11 a and short-term cycles. |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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