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天山北坡雪岭云杉树轮宽度年表梯度特征分析
引用本文:喻树龙,李淑娟,姜盛夏,张同文,张瑞波,秦莉,尚华明,张合理. 天山北坡雪岭云杉树轮宽度年表梯度特征分析[J]. 沙漠与绿洲气象(新疆气象), 2020, 14(2): 1-9
作者姓名:喻树龙  李淑娟  姜盛夏  张同文  张瑞波  秦莉  尚华明  张合理
作者单位:中国气象局乌鲁木齐沙漠气象研究所,中国气象树木年轮理化研究重点开放实验室,新疆树木年轮生态实验室,中国气象局乌鲁木齐沙漠气象研究所,中国气象树木年轮理化研究重点开放实验室,新疆树木年轮生态实验室,中国气象局乌鲁木齐沙漠气象研究所,中国气象树木年轮理化研究重点开放实验室,新疆树木年轮生态实验室,中国气象局乌鲁木齐沙漠气象研究所,中国气象树木年轮理化研究重点开放实验室,新疆树木年轮生态实验室,中国气象局乌鲁木齐沙漠气象研究所,中国气象树木年轮理化研究重点开放实验室,新疆树木年轮生态实验室,中国气象局乌鲁木齐沙漠气象研究所,中国气象树木年轮理化研究重点开放实验室,新疆树木年轮生态实验室,中国气象局乌鲁木齐沙漠气象研究所,中国气象树木年轮理化研究重点开放实验室,新疆树木年轮生态实验室,中国气象局乌鲁木齐沙漠气象研究所,中国气象树木年轮理化研究重点开放实验室,新疆树木年轮生态实验室
基金项目:中央级公益性科研院所基本科研业务专项基金资助项目
摘    要:在天山北坡不同区域间隔海拔高度100 m左右采集5个树轮梯度年表,分析树木径向生长沿海拔高度变化的规律。结果发现:在树轮年表特征中,平均轮宽、树龄和敏感度等存在海拔梯度变化,平均轮宽和敏感度随海拔升高而降低,而平均树龄则与海拔高度呈正相关。高海拔采样点在同一区域和不同区域间一致性最好,低海拔采样点次之,而森林中部最差,东部和中部低海拔区域采样点的一致性要好于西部,坡向、坡度等小生境的差异也是影响树轮生长垂直变化规律的重要因素。存在同时影响不同海拔高度树轮生长的环境要素,西部和中部高海拔树木对该要素的响应更显著,在更为干旱的天山北坡中部和东部,对树木径向生长的影响较大的环境因子要多于西部伊犁地区。

关 键 词:雪岭云杉(Picea schrenkiana);天山北坡;树木年轮;海拔梯度;年表特征
收稿时间:2019-12-03
修稿时间:2020-01-30

Gradient chronology feature of Picea Schrenkiana in the north slope of Tianshan Mountains,China
YU Shulong,LI Shujuan,JIANG Shengxi,ZHANG Tongwen,ZHANG Ruibo,QIN Li,SHANG Huaming and ZHANG Heli. Gradient chronology feature of Picea Schrenkiana in the north slope of Tianshan Mountains,China[J]. Bimonthly of Xinjiang Meteorology, 2020, 14(2): 1-9
Authors:YU Shulong  LI Shujuan  JIANG Shengxi  ZHANG Tongwen  ZHANG Ruibo  QIN Li  SHANG Huaming  ZHANG Heli
Affiliation:Institute of Desert Meteorology,CMA,Institute of Desert Meteorology,CMA,Institute of Desert Meteorology,CMA,Institute of Desert Meteorology,CMA,Institute of Desert Meteorology,CMA,Institute of Desert Meteorology,CMA,Institute of Desert Meteorology,CMA,Institute of Desert Meteorology,CMA
Abstract:Tree-ring cores were taken at different elevations of the five sampling on the north slopes of tianshan Mountains and every site interval about 100 meters apart. sites tree-ring width chronologies of Picea schrenkiana were determined using standard dendrochronological methods.Analysis the feature of tree ring width choronology for different elevations. The average growth volume, tree age, and sensitivity have changes in elevation gradient, and the average growth volume and sensitivity decrease with elevation, while the average tree age is positively related to altitude. The high altitude picking points have the best consistency between the same and different regions, followed by the low altitude picking points, while the middle part of the forest is the worst, and the Eastern and central low-altitude picking points have better consistency than the western part. The difference of small habitats such as slope direction and slope are important factors that have affected the vertical change of tree growth along the elevation gradient. There are environmental factors that affect the growth of tree rings at different altitudes at the same time, and the response of high altitude chronology is more significant in the West and middle. In the middle and east of the northern slopes of Tianshan Mountains,there are more environmental factors affecting the radial growth of trees than the Yili area.
Keywords:Picea schrenkiana   north slope of Tianshan Mountains   Tree-ring   elevation gradient   chronological features
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