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Alternative TitleTemporal and spatial variations of rainfall erosivity in China during 1960 to 2009
刘斌涛; 陶和平; 宋春风; 郭兵; 史展; 张超; 孔博; 何兵
Corresponding Author刘斌涛
Source Publication地理研究
Other AbstractSoil erosion is one of the most important environmental concerns of China. It is shown that rainfall erosivity is prone to cause severe soil loss, so it is used as a primary input parameter for soil erosion, sediment yield and water quality modelling. Based on the daily rainfall data from 590 meteorological stations in China from 1960 to 2009, rainfall erosivity was estimated and the temporal and spatial distribution was analysed with trend coefficient, climate tendency rate and the ordinary kringing methods with the aid of ArcGIS 9.2 software, respectively. The results show that the spatial distribution of rainfall erosivity has a decreasing trend from the southeast coastal regions to the northwest inland regions. The spatial distribution of average annual rainfall erosivity is similar to that of average annual precipitation. There is a slight increase of annual rainfall erosivity in most parts of China. There are four areas whose annual rainfall erosivity has a significant increasing trend and two areas with a significant decreasing trend in the 50 years. There are 59 stations whose coefficients of tendency pass the confidence test with 5% level of significance, and these stations are mainly located in the eastern and central Qinghai-Tibet Plateau, Tianshan Mountains and the southeast coastal regions. The areas of Numuhong, Dulan, Qumalai and Wudaoliang in Qinghai Province see the most significant increase from 1960 to 2009 throughout China, indicating that soil loss might be aggregated by rainfall increase in the headwaters of the Yangtze River and Yellow River.
Keyword降雨侵蚀力 时空变化 趋势系数 气候倾向率 中国
Indexed ByCSCD
Funding Organization中国科学院西部行动计划项H(KZCX22XB3-08);中国科学院知识创新工程重要方向项目(KZCX2-YW-333)
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GB/T 7714
刘斌涛,陶和平,宋春风,等. 1960—2009年中国降雨侵蚀力的时空变化趋势[J]. 地理研究,2013,32(2):245-256.
APA 刘斌涛.,陶和平.,宋春风.,郭兵.,史展.,...&何兵.(2013).1960—2009年中国降雨侵蚀力的时空变化趋势.地理研究,32(2),245-256.
MLA 刘斌涛,et al."1960—2009年中国降雨侵蚀力的时空变化趋势".地理研究 32.2(2013):245-256.
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