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地理科学  2011 

中国东北地区典型流域水文变化特性及其对气候变化的响应

, PP. 641-646

Keywords: 气候变化,东北地区,典型流域,水文响应

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Abstract:

以辽河的主要水源区太子河流域为对象,分析近50a来流域的降水径流变化特性,采用水文模拟方法,研究了河川径流量及土壤含水量对气候变化的响应。结果表明近50a来实测径流量总体呈现减少趋势;20世纪80年代以来,气候因素对河川径流量的绝对影响量呈现增加趋势;降水增加比减少对河川径流量的影响明显,土壤含水量对降水减少的响应更加敏感,气候暖干化趋势将非常不利于东北地区的水资源利用和农业生产。

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