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地理科学  2014 

1961~2010年辽河三角洲参考蒸散发变化特征及主导因子分析

, PP. 1233-1238

Keywords: 参考蒸散发,主导因子,敏感系数,辽河三角洲

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Abstract:

基于FAOPenman-Monteith公式计算了辽河三角洲区域19个气象站1961~2010年逐日参考蒸散发(ET0)对平均气温、风速、相对湿度和太阳辐射的敏感系数,结合各气象因子的多年变化定量分析参考蒸散发变化的原因。结果表明气温对ET0变化为正贡献,风速、相对湿度和太阳辐射为负贡献;综合考虑敏感性分析和趋势分析的结果,滨海干湿过渡区气象因子对参考蒸散发变化的贡献由大到小依次是风速、平均气温、太阳辐射和相对湿度;半湿润亚区由大到小依次是风速、平均气温、相对湿度和太阳辐射;半干旱亚区由大到小依次是平均气温、太阳辐射、风速和相对湿度。

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