Abstract
The daily precipitation of nine rainfall stations in recent ten years were taken as the analysis data. Combining the statistical method with GIS, the rainfall erosivity of nine rainfall stations was discretized spatially. And its temporal characteristics were analyzed by the statistical method of Mann-Kendal. The results showed that in the past ten years, the inter-annual rainfall erosivity distribution was uniform and its distribution in spatial was even. But in one year, the monthly rainfall erosivity exhibited strong variability and showed a bimodal distribution. And the two peak value occurred in July and August respectively. These results were useful to estimate the soil erosion and to divide the soil and water conservation zone in Shanghai.
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