This paper summarized hydrological characters, distribution of precipitation and runoff in arid and semiarid regions in the northwest of China on the basis of the previous researches.
本文在前人研究基础上，总结了中国西北部干旱半干旱地区的水文特性，降水及径流的时空分布规律。
The meridional distribution of forecast precipitation of IPCC models is the same to observation in china and the effect of simulation in middle and higher latitude is better than in lower latitude.
降水预报产品的经向变化与实况也比较致，呈“南多北少”中、高纬度带模拟的效果比低纬度带的好；
There was normal or more precipitation in the most of China in 1995, but there was a seasonal variance of precipitation distribution.
1995年，我国大部地区降水正常或偏多，但季节分配不均。
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