title: Tree-ring-based reconstruction of precipitation in the Changling Mountains, China, since A.D.1691.
abstract: Seven different tree-ring parameters were obtained from Chinese pine (Pinus tabulaeformis) in the Changling Mountains, China. The chronologies were analyzed individually and then compared with each other. The climate response analysis shows that total precipitation (September-July) is the main factor limiting the radial growth of Chinese pine in the Changling Mountains. Thus, the residual earlywood width chronology was used to estimate precipitation (September-July) for the period AD 1691-2006, and explained 46.9% of the precipitation variance. Drought events in our reconstruction are compared to historical archives for Gansu and north-central China. The results reveal the climatic extremes over much of Gansu. Some events have had profound impacts on the Gansu people over the past several centuries. Spatial analysis shows that the precipitation reconstruction has strong common signals for North-central China. The reconstructed series is correlated significantly with Helan Mountains Palmer drought severity index (PDSI), as well as with previous results from Jiuquan, Shandan, Huashan, Luya Mountains, and even the state of Mongolia. Our results suggest that some dry periods are coincident with solar minima over the past several hundred years. Multitaper spectral analysis reveals the existence of significant 24.4-year, 12.2-year, and 2.4- to 3.4-year periods of variability.
authors.affiliation: Institute of Desert Meteorology, China Meteorological Administration, Urumqi, China. feng653@163.com
authors.forename: Feng
authors.initials: F
authors.lastname: Chen
authors.forename: Yujiang
authors.initials: Y
authors.lastname: Yuan
authors.forename: Wenshou
authors.initials: W
authors.lastname: Wei
authors.forename: Wenshou
authors.initials: W
authors.lastname: Wen
authors.forename: Shulong
authors.initials: S
authors.lastname: Yu
authors.forename: Ziang
authors.initials: Z
authors.lastname: Fan
authors.forename: Ruibo
authors.initials: R
authors.lastname: Zhang
authors.forename: Tongwen
authors.initials: T
authors.lastname: Zhang
authors.forename: Huaming
authors.initials: H
authors.lastname: Shang
mesh_terms: D058506:Cambium / Q000254:growth & development; D002681:China; D028223:Pinus / Q000254:growth & development*; D014197:Trees / Q000254:growth & development*; D014887:Weather