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地理科学  2005 

澜沧江径流量变化与云南降水量场变化的相关性特征

, PP. 420-426

Keywords: 径流量变化,降水量场变化,显著高相关区

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Abstract:

为了考查气候变化对澜沧江-湄公河流域水文水生态环境变化影响的基本事实,文章以云南境内澜沧江的逐月径流量观测数据和云南的同期月降水量场观测数据为基础,应用相关系数的分析方法,研究了云南境内澜沧江径流量变化与云南降水量场变化的相关性特征。结论为澜沧江的跨境径流量变化与云南的降水量场变化之间存在有十分显著的相关关系,澜沧江的跨境径流量变化主要是由于云南降水量场的变化造成的。总体来说,云南降水量场变化对澜沧江跨境径流量变化的影响在4个季节内都是显著的,其中显著性最好的是3~5月的春季,其次分别是6~8月的夏季和9~11月的秋季,较差的是12~2月的冬季。

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