| 全球变化背景下天山西部雪岭云杉径向生长和水分利用效率对气候要素的响应 |
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| 引用本文： | 秦莉,尚华明,喻树龙,ZHANG He-li,JIANG Sheng-xi,ZHANG Tong-wen,LIU Ke-xiang,GOU Xiao-xi,张瑞波. 全球变化背景下天山西部雪岭云杉径向生长和水分利用效率对气候要素的响应[J]. 沙漠与绿洲气象(新疆气象), 2021, 15(3): 1-9 |
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| 作者姓名： | 秦莉 尚华明 喻树龙 ZHANG He-li JIANG Sheng-xi ZHANG Tong-wen LIU Ke-xiang GOU Xiao-xi 张瑞波 |
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| 作者单位： | 中国气象局乌鲁木齐沙漠气象研究所,中国气象局乌鲁木齐沙漠气象研究所,中国气象局乌鲁木齐沙漠气象研究所,中国气象局乌鲁木齐沙漠气象研究所,中国气象局乌鲁木齐沙漠气象研究所,中国气象局乌鲁木齐沙漠气象研究所,中国气象局乌鲁木齐沙漠气象研究所,中国气象局乌鲁木齐沙漠气象研究所,中国气象局乌鲁木齐沙漠气象研究所 |
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| 基金项目： | 新疆维吾尔自治区自然科学基金（2018D01A40） |
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| 摘 要： | 全球气候变暖和大气CO2浓度(Ca)急剧上升已成为不争的事实,并对森林生态系统有着深远的影响,全面理解森林生态系统对全球变化的响应至关重要。中亚干旱区特有树种雪岭云杉(Picea schrenkiana Fisch. et Mey)树轮稳定碳同位素(δ13C)和水分利用效率(iWUE)对气候变暖和大气CO2浓度急剧上升的响应缺乏研究。本研究利用天山西部伊犁河流域的雪岭云杉树轮样本,使用树木年代学方法和树轮稳定碳同位素技术,建立树轮宽度年表、稳定碳同位素(δ13C)以及内禀水分利用效率(iWUE)序列,分析了树轮δ13C和iWUE的长期变化特征,探讨了树轮δ13C和iWUE对气候的响应规律以及iWUE与树轮宽度的关系。结果表明,主要的气候因子并没有强烈地限制树木径向生长;夏季平均气温对树轮δ13C分馏有重要影响,iWUE的长期变化受到全球Ca增加和升温趋势影响,但直接影响iWUE年际变化的主要因素是饱和水汽压亏缺(VPD)。全球升温和Ca增加导致了iWUE的持续升高,但并没有导致雪岭云杉树木径向生长的明显增加。
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| 关 键 词： | 树木年轮 稳定碳同位素(δ13C) 水分利用效率(iWUE) 雪岭云杉(Picea schrenkiana Fisch. et Mey) 天山 气候变化 |
| 收稿时间： | 2020-05-27 |
| 修稿时间： | 2020-10-14 |
Response of tree-ring growth and intrinsic water-use efficiency to climate elements in the Western Tianshan under global change |
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| QIN Li,SHANG Hua-ming,YU Shu-long,ZHANG He-li,JIANG Sheng-xi,ZHANG Tong-wen,LIU Ke-xiang,GOU Xiao-xia and ZHANG Ruibo. Response of tree-ring growth and intrinsic water-use efficiency to climate elements in the Western Tianshan under global change[J]. Bimonthly of Xinjiang Meteorology, 2021, 15(3): 1-9 |
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| Authors: | QIN Li SHANG Hua-ming YU Shu-long ZHANG He-li JIANG Sheng-xi ZHANG Tong-wen LIU Ke-xiang GOU Xiao-xia ZHANG Ruibo |
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| Affiliation: | Institute of Desert Meteorology,China Meteorological Administration / Key Laboratory of Tree-ring Ecology of Xinjiang Uigur Autonomous Region,Key Laboratory of Tree-ring / Physical and Chemical Research of China Meteorological Administration,Institute of Desert Meteorology,China Meteorological Administration / Key Laboratory of Tree-ring Ecology of Xinjiang Uigur Autonomous Region,Key Laboratory of Tree-ring / Physical and Chemical Research of China Meteorological Administration,Institute of Desert Meteorology,China Meteorological Administration / Key Laboratory of Tree-ring Ecology of Xinjiang Uigur Autonomous Region,Key Laboratory of Tree-ring / Physical and Chemical Research of China Meteorological Administration,Institute of Desert Meteorology,China Meteorological Administration / Key Laboratory of Tree-ring Ecology of Xinjiang Uigur Autonomous Region,Key Laboratory of Tree-ring / Physical and Chemical Research of China Meteorological Administration,Institute of Desert Meteorology,China Meteorological Administration / Key Laboratory of Tree-ring Ecology of Xinjiang Uigur Autonomous Region,Key Laboratory of Tree-ring / Physical and Chemical Research of China Meteorological Administration,Institute of Desert Meteorology,China Meteorological Administration / Key Laboratory of Tree-ring Ecology of Xinjiang Uigur Autonomous Region,Key Laboratory of Tree-ring / Physical and Chemical Research of China Meteorological Administration,Institute of Desert Meteorology,China Meteorological Administration / Key Laboratory of Tree-ring Ecology of Xinjiang Uigur Autonomous Region,Key Laboratory of Tree-ring / Physical and Chemical Research of China Meteorological Administration,Institute of Desert Meteorology,China Meteorological Administration / Key Laboratory of Tree-ring Ecology of Xinjiang Uigur Autonomous Region,Key Laboratory of Tree-ring / Physical and Chemical Research of China Meteorological Administration,Institute of Desert Meteorology,China Meteorological Administration / Key Laboratory of Tree-ring Ecology of Xinjiang Uigur Autonomous Region,Key Laboratory of Tree-ring / Physical and Chemical Research of China Meteorological Administration |
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| Abstract: | |
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| Keywords: | Tree rings stable carbon isotope intrinsic water-use efficiency (iWUE) Schrenk spruce (Picea schrenkiana Fisch. et Mey) Tianshan Mountains climate change |
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