| 腾格里沙漠南缘近315年5～6月PDSI指数变化 |
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| 引用本文： | 陈峰,袁玉江,魏文寿,喻树龙,张瑞波,范子昂,张同文,尚华明,李杨.腾格里沙漠南缘近315年5～6月PDSI指数变化[J].地理科学,2011(4):434-439. |
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| 作者姓名： | 陈峰 袁玉江 魏文寿 喻树龙 张瑞波 范子昂 张同文 尚华明 李杨 |
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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树木年轮理化研究重点实验室新疆维吾尔自治区树木年轮生态重点实验室; |
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| 基金项目： | 国家自然科学重大基金(40890051); 新疆气象局青年基金项目“塔城东部树轮密度对温度响应研究”; 新疆维吾尔自治区树木年轮生态重点实验室开放基金(XJYS0911-2009-01)资助 |
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| 摘 要： | 利用昌灵山早材宽度年表重建腾格里沙漠南缘在过去315 a的5～6月份PDSI指数变化,重建方程的方差解释量达42.0%。腾格里沙漠南缘5～6月的PDSI指数重建序列平均值为-0.32。腾格里沙漠南缘5～6月的PDSI指数重建序列对西北地区干旱极端历史事件有良好的响应。空间分析显示腾格里沙漠南缘5～6月的PDSI指数重建序列与亚洲季风尾闾区PDSI指数的变化比较一致,同时还与西北地区的多条PDSI指数重建序列有着良好的相关性。腾格里沙漠南缘5～6月的PDSI指数重建序列具有25 a(95%)、12 a(95%)、3.4 a(99%)、2.8 a(99%)、2.6 a(99%)、2.3 a(95%)的周期变化。
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| 关 键 词： | 腾格里沙漠 树轮早材宽度 PDSI指数重建 |
Reconstruction of May-June Palmer Drought Severity Index at South Margin of Tengger Desert,China Since A.D.1691 |
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| CHEN Feng,YUAN Yu-jiang,WEI Wen-shou,YU Shu-long,ZHANG Rui-bo,FAN Zi-ang,ZHANG Tong-wen,SHANG hua-ming,LI Yang.Reconstruction of May-June Palmer Drought Severity Index at South Margin of Tengger Desert,China Since A.D.1691[J].Scientia Geographica Sinica,2011(4):434-439. |
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| Authors: | CHEN Feng YUAN Yu-jiang WEI Wen-shou YU Shu-long ZHANG Rui-bo FAN Zi-ang ZHANG Tong-wen SHANG hua-ming LI Yang |
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| Institution: | CHEN Feng,YUAN Yu-jiang,WEI Wen-shou,YU Shu-long,ZHANG Rui-bo,FAN Zi-ang,ZHANG Tong-wen,SHANG hua-ming,LI Yang(Institute of Desert Meteorology,China Meteorological Administration,Key Laboratory of Tree-ring Physical Chemic Research of China Meteorological Administration,Key Laboratory of Tree-ring Ecology of Key Laboratory of Tree-ring Ecology of Uyghur Autonomous Region of Xinjiang,Urumqi,Xinjiang 830002,China) |
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| Abstract: | We presented a drought reconstruction for the northern central China based on the earlywood width chronology developed from one site of Pinus tabulaeformis at South Margin of Tengger Desert,China.The drought reconstruction in 1691-2005 was developed by calibrating tree-ring data with the Palmer Drought Severity Index(PDSI),which is used to describe the regional moisture condition properly.The reconstruction was verified with the independent data,and accounted for 42.0% of the actual PDSI variance during the... |
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| Keywords: | Tengger Desert tree-ring earlywood width PDSI reconstruction |
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