| 东北地区近40年干燥指数变化趋势及其气候敏感性 |
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| 引用本文： | 郑红星,刘静. 东北地区近40年干燥指数变化趋势及其气候敏感性[J]. 地理研究, 2011, 30(10): 1765-1774. DOI: 10.11821/yj2011100003 |
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| 作者姓名： | 郑红星 刘静 |
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| 作者单位： | 1. 中国科学院地理科学与资源研究所,北京100101;2. 中国科学院研究生院,北京100049 |
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| 基金项目： | 中国科学院知识创新工程重要方向项目(KZCXZ-YW-Q06-1); 国家科技支撑计划项目(2008BAK50B05-02) |
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| 摘 要： | 基于东北地区91个站点1971～2008的常规气象资料,应用Mann-Kendall方法分析了区内近40年干燥指数的变化趋势,并基于Penman-Monteith公式计算了干燥指数对各气象要素的敏感性系数,分析了气候变化影响下,干燥指数气候敏感系数的变化规律。研究表明：（1）东北地区近40年来干燥指数以0.06/10a...
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| 关 键 词： | 干燥指数 气候变化 敏感系数 东北地区 |
| 收稿时间： | 2011-03-12 |
Long-term trends of aridity index and its sensitivity to climate factors in Northeast China:1971-2008 |
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| ZHENG Hong-xing,LIU Jing. Long-term trends of aridity index and its sensitivity to climate factors in Northeast China:1971-2008[J]. Geographical Research, 2011, 30(10): 1765-1774. DOI: 10.11821/yj2011100003 |
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| Authors: | ZHENG Hong-xing LIU Jing |
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| Affiliation: | 1. Key Laboratory of Water Cycle and Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing100101, China;2. Graduate University of Chinese Academy of Sciences, Beijing100049, China |
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| Abstract: | Northeast China plays an important role in food production and ecological conservation in China.Changes of wetness accompanying with global climate change could have significant impacts on food security and ecosystem health in the area.In this paper,the long-term trends of the aridity index are detected using Mann-Kendall approach for the period 1971-2008.The results of the trend test show that there was an insignificant increase of the aridity index in the region.To explore the cause of the trend,the sensi... |
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| Keywords: | aridity index climate change sensitivity coefficients Northeast China |
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