一种干旱指数计算方法的研究和应用

STUDY OF A COMPUTATION METHOD FOR DROUGHT INDEX AND ITS APPLICATION

摘要:

通过分析水分平衡过程诸分量建立了一个较为实用,并具有较好物理基础的干旱指数计算模式。应用分析和检验结果表明,这种干旱指数能较好地综合反映旱涝气候特征和干湿程度变化对农业生产的不同影响。

关键词:干旱指数;水分平衡;旱涝特征

Abstract:

A more practicable computation method for drought index on a good physicalbasis is established by comparing and analysing the components of water balance. Results suggest that the drought index obtained by this method can well reflect the climatic characteristics of drought and flood. and their influence on agriculture.

Key words:drought index;water balance;drought and flood features