关键词: 泽拉夫尚圆柏, 树轮宽度年表, 气候要素, 响应分析

Abstract: In this study, tree ring samples of Juniperus seravschanica were collected from three sites in the Kuramenian Mountains, which were used to develop three treering width chronologies. Results of climate-growth response analysis showed that the radial growth of trees showed different responses to temperature and precipitation at different slope directions and at different altitudes. The radial growth of trees at high altitude (2000 m) was mainly affected by precipitation in the current growing season on the northern slope, and was mainly limited by temperature in the previous and current growing seasons on the southern slope. Temperature at the end of the current growing season significantly affected the radial growth of J. seravschanica on the southern slope at low altitude (1600 m). Results of moving correlation analysis and u tests revealed differences in the relationships between the radial growth of J. seravschanicaand climate factors in different sites. The response period of the radial growth of J. seravschanica differed among different sites due to climatic variations. The positive correlation between treering width chronology and precipitation in May-June in the current season was slightly stronger at high altitude on the northern slope. The radial growth of J. seravschanica was mainly affected by temperature at high altitude on the southern slope, which reflected a strong positive correlation between the radial growth of trees and temperature in the previous May and a strong negative correlation between the radial growth of trees and temperature in the previous December. The radial growth of trees at low altitude on the southern slope and at high altitude on the northern slope showed increasingly negativeresponseto precipitation at the end of the growing season.

Key words: Juniperus seravschanica, tree-ring chronology, climatic element, response analysis.