Chronology development and climate response analysis of different New Zealand pink pine (Halocarpus biformis) tree-ring parameters

Abstract

Seven different tree-ring parameters (total ring width, earlywood width, latewood width, maximum latewood density, minimum earlywood density, average earlywood density, and average latewood density) were obtained from pink pine (Halocarpus biformis Hook.) at one chronology site in New Zealand (NZ). The chronologies were analyzed individually and then compared with each other. The relationships between the different tree-ring parameters and climate data (NZ average and local climate data) are also presented. There were more significant climate response functions in the NZ national average climate series than that of local climate data series. Earlywood-related parameters (earlywood width, minimum density, and average earlywood density) were more sensitive to climate than those of latewood. Temperature during the NZ growth season (November-March) was found to be the most strongly related to tree growth. This study demonstrates that the use of both ring width and ring density data can increase the climate information obtained from ring widths and should lead to improved paleoclimate reconstructions in New Zealand.

Climatic response of ring width and maximum latewood density of Larix sibirica in the Altay Mountains, reveals recent warming trends

“…The MXD indices exhibit low year-to-year variability, as emphasized by the low mean sensitivities (0.072-0.074) and the standard deviations (0.075-0.080). These low values of MXD were found in the previous reports (Schweingruber et al 1978;Cleaveland 1986;Xiong et al 1998). In general,…”

“…The climate of the early part of growing season also has a significant impact on the formation of MXD. Previous studies (Schweingruber et al 1978;Cleaveland 1986;Xiong et al 1998;D'Arrigo et al 2004;Büntgen et al 2008;Fan et al 2009) also demonstrated the responses of MXD to the warm season temperatures (from spring to late summer). Elevation is also an important factor limiting the growing season length.…”

Chronology Development and Climate Response Analysis of Schrenk Spruce (Picea Schrenkiana) Tree-Ring Parameters in the Urumqi River Basin, China

“…However, it is observed that earlywood density parameters are the major contributor in dendroclimatic estimation in this study. The results of our analysis are similar to some studies (Xiong et al, 1998;Pant et al, 2000) demonstrated that earlywood tree-ring parameters (earlywood density, minimum density, and earlywood width) were also sensitive to climate. Climate may strongly influence all types of tree-ring data (total ring width, early and latewood width, early and latewood density) depending on species and site conditions.…”

Tree ring density‐based summer temperature reconstruction for Zajsan Lake area, East Kazakhstan

“…The results indicate there is strong climatic information in the LWD standard chronology. Some investigators (Polge, 1970;Parker and Henoch, 1971;Schweingruber et al, 1978;Briffa et al, 1988;Xiong et al, 1998;Büntgen et al, 2008;Wang et al, 2009) found that the tree-ring density parameters had lower MS and SD compared with tree-ring width parameters. Mean sensitivity and standard deviation of the LWD standard chronology is also low.…”

“…The seven tree-ring parameters (ring width, earlywood width, latewood width, maximum density, minimum density, mean earlywood density, mean latewood density) were measured for each annual ring on each sample. The boundary between earlywood and latewood was identified as the mid-point between the maximum and minimum density measurements of each ring (Xiong et al, 1998). The crossdated tree-ring sequences were quality checked by the COFECHA program (Holmes, 1983).…”