Li Ying-Hui, Qi Gui-Zeng, Feng Rong-Rong, Liu Kang
Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China.
Ying Yong Sheng Tai Xue Bao. 2022 Aug;33(8):2043-2050. doi: 10.13287/j.1001-9332.202208.040.
A standard chronology (STD) was established with samples collected from Nanwutai at the northern slopes of the Qinling Mountains. The correlations between radial growth of and climatic factors were explored. The results showed that radial growth was positively correlated with moisture factors in previous September and current May. The radial growth was positively correlated with temperature factors in pre-vious November and negatively with that in previous October and current May. There was significant lag effect of climatic factors on the radial growth. The radial growth of was well correlated with the PDSI drought severity index, with positive correlations being identified from September to December of the previous year and in May of the current year. The regression model was able to simulate the relationship between STD and PDSI. The formations of extremely wide and narrow tree-ring were mainly a result of drought condition. Combined with climatic factors, PDSI could better reflect the radial growth characteristics of .
利用从秦岭北坡南五台采集的样本建立了标准年表（STD）。探讨了[树木名称未给出]径向生长与气候因子之间的相关性。结果表明，径向生长与前一年9月和当年5月的水分因子呈正相关。径向生长与前一年11月的温度因子呈正相关，与前一年10月和当年5月的温度因子呈负相关。气候因子对径向生长存在显著的滞后效应。[树木名称未给出]的径向生长与帕尔默干旱严重指数（PDSI）密切相关，从前一年9月至12月以及当年5月均呈正相关。回归模型能够模拟STD与PDSI之间的关系。极宽和极窄年轮的形成主要是干旱状况的结果。结合气候因子，PDSI能够更好地反映[树木名称未给出]的径向生长特征。
