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[1]MA Liang,ZUO Chang-qing,QIN Bing,et al.Potential Erosive Power of Rainfall and Spatiotemporal Variation Characteristics in the Huaihe River Basin[J].Research of Soil and Water Conservation,2012,19(02):22-25.

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Potential Erosive Power of Rainfall and Spatiotemporal Variation Characteristics in the Huaihe River Basin

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 02 Page number: 22-25 Column: Public date: 2012-04-20

Title:: Potential Erosive Power of Rainfall and Spatiotemporal Variation Characteristics in the Huaihe River Basin

Author(s):: MA Liang¹, ZUO Chang-qing², QIN Bing³, CHI Xiao-jun¹; 1. Water Resources Research Institute of Shandong Province, Ji’nan 250013, China;
2. Research Center on Soil and Water Conservation of the Ministry of Water Resources, Beijing 100044, China;
3. Shandong Survey and Design Institute of Water Conservacy, Ji’nan 250013, China

Keywords:: rainfall erosivity factor; time series analysis; spatial variability; Huaihe River basin

CLC:: P458.1⁺21

DOI:: -

Abstract:: The current global climate is experiencing a significant change with an average increase in the earth temperature as the main feature,which presents new challenge on soil erosion control.Exploring the potential influence and spatiotemporal variation from climate change especially precipitation change is foundation to reveal the relationship between climate change and soil erosion for reducing the uncertainty in future practice.By using rainfall erosivity as an indicator,potential erosivie power and spatiotemporal variation characteristics were discussed on the Huaihe River basin.Results showed that the average annual rainfall erosive power was 5 269.12MJ/(mm·hm²·h) during 1951—2008 and the peak centre was located in the south of Dabie Mountain Area.No significant statistical trend was found on temporal erosivity change through time series test method.Spatially,there were three distinct erosivity-increasing centers including Zhoukou City,Dabieshan Mountain Area and Bengbu City.In addition,the rainfall erosive power in middle souther of Shandong hilly areas in the north basin also showed an obvious increasing state.Strengthening adaptation research on water erosion control in future precipitation change should be considered prior to those above regions.

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