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以全省508个雨量站点的长系列逐日降雨资料,利用基于日降雨信息的月降雨侵蚀力模型,估算了浙江省的降雨侵蚀力,分析了其时空分布规律。结果表明:浙江省降雨侵蚀力总体趋势是自北向南递增;降雨侵蚀力年内分配主要集中在4-9月,占年均降雨侵蚀力的77.7%,根据年降雨侵蚀力的季节分配特征,可以将浙江省划分为3个类型区;降雨侵蚀力的年际变化在空间上东南沿海及海岛地区明显高于其他地区。
Based on the daily rainfall data of 508 rainfall stations in the province, rainfall erosivity of Zhejiang Province was estimated by using monthly rainfall erosivity model based on daily rainfall information, and its temporal and spatial distribution was analyzed. The results showed that the general trend of rainfall erosivity in Zhejiang Province increased from north to south. The distribution of rainfall erosivity mainly concentrated in April-September, accounting for 77.7% of the annual rainfall erosivity. Based on the seasonal distribution of annual rainfall erosivity, Zhejiang Province is divided into three types of areas; the interannual variation of rainfall erosivity is significantly higher than other areas in the southeast coast and island areas.