文献类型：期刊文献

英文题名：Climate response of cell characteristics in tree rings of Picea crassifolia

作者：Xu, Jinmei[1] Lu, Jianxiong[1] Bao, Fucheng[1] Evans, Robert[2] Downes, Geoffrey M.[3,4]

第一作者：徐金梅

通信作者：Lu, JX[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, State Key Lab Tree Genet & Breeding, Beijing 100091, Peoples R China;[2]CSIRO Mat Sci & Engn, Melbourne, Vic 3169, Australia;[3]CSIRO Ecosyst Sci, Hobart, Tas 7001, Australia;[4]CRC Forestry, Hobart, Tas 7001, Australia

年份：2013

卷号：67

期号：2

起止页码：217-225

外文期刊名：HOLZFORSCHUNG

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000316376100014)】；

基金：This work was funded by the National Natural Science Foundation of China (No. 30825034) and the State Forestry Administration of China (No. 200804001). The Academy of Water Resource Conservation Forest of Qilian Mountains in GanSu provided appreciable support for fieldwork. Thanks to Winston Liew from CSIRO for technical assistance with sample preparation and measurement. The authors are also very grateful to Xuemei Shao of the Chinese Academy of Science for her help and suggestions on the data processing. We thank the anonymous referees for their comments and suggestions, which have greatly improved this article.

语种：英文

外文关键词：cell diameter; cell wall thickness; climate; dendroclimatology; Picea crassifolia

摘要：Dimensions of dated tree rings are an important tool of dendroclimatology. However, the relationships between climatic variables and cell diameter and cell wall thickness are not yet clearly elaborated. In the present article, year-to-year cell characteristics, ring width, and wood density of Picea crassifolia trees growing in northwestern China have been measured with high resolution by means of the instrument SilviScan-3. The response function analysis showed that climate explained 51% of the variation of cell radial diameter chronology, 48% of wood density, 40% of cell wall thickness, and 37% of ring width. Cell wall thickness and wood density responded significantly and positively to temperature, and the response to precipitation was negative, while the opposite was true for cell radial diameter and ring width. Cell wall thickness and wood density were pronounced (statistically significant) to temperature in September and precipitation in May and August. Cell radial diameter responded significantly to temperature in June and July, and precipitation, in August. For ring width, the temperature in July was important. Accordingly, cell characteristics are sensitive to climate, and the findings could be useful in the field of dendroclimatology.