采用静态吸附过程和动态柱淋洗方法研究了不同模拟降水量下锌在土壤中的吸附和迁移。
The sorption and migration experiments of zinc in soils were studied by batch process and dynamic column elution method with simulated rainfall.
结果表明:(1)MM5模式能够较好地模拟出风场、气压场、降水量场,在预报业务实践中有很好地参考价值;
The results show that (1) MM5 is better in simulation of steam field, sea-level pressure field and precipitation.
在年降水量的频率计算中,采用了皮尔逊III型模型与韦克比分布进行模拟,其结果均能符合精度要求。
The Pealson Type-III Model and Wakeby Distribution are used to simulate the frequency distribution of annual precipitation, and the results that accord with the demands of the precision are obtained.
模拟结果还发现,提高大豆的出苗密度可以增加大豆的产量,但增加值与生长季的降水量有一定的关系。
Results also show that an improvement in plants density can gain more yield of soybean, and there is a linear relation between the yield increasing value and the rainfall during soybean growth season.
结果表明:不同大气环流模式对该流域降水量模拟结果不同,导致未来气候条件下径流和输沙量的预测也存在一定差异。
The results showed the ability of simulated data varied by different GCMs. It led to the difference of estimated runoff depth and sediment discharge.
但是在降水中心的分布以及降水量级上与实况仍有一定程度的差异,GRAPES模式模拟出的总体落区略优于MM5,而MM5对降水量级的预报好于GRAPES。
The rainfall spatial distribution simulated by GRAPES is better than that simulated by MM5. However, the maximum values of the precipitation center are much less than the results of MM5.
但是在降水中心的分布以及降水量级上与实况仍有一定程度的差异,GRAPES模式模拟出的总体落区略优于MM5,而MM5对降水量级的预报好于GRAPES。
The rainfall spatial distribution simulated by GRAPES is better than that simulated by MM5. However, the maximum values of the precipitation center are much less than the results of MM5.
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