期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：237
期号：2
页码：022042
DOI：10.1088/1755-1315/237/2/022042
出版社：IOP Publishing
摘要：This paper selects Xiangyang Han River area as the research object, based on nearly 36 years of rainfall data during 1979-2014 through the MK trend test, precipitation concentration degree, frequency statistics, statistical method analysis, Xiangyang part of Hanjiang River Basin rainfall characteristics. Results show that in Xiangyang years precipitation was not significant downward trend, precipitation concentration degree is high, mostly concentrated in May to September rainy season, flood and non flood season precipitation concentration degree is high and the precipitation in flood season for many years was not significantly decreased. On the whole, the precipitation in Xiangyang is relatively abundant, but the distribution is uneven and the water supply resource management and control can bring great pressure, so it can be combined with relevant measures to strengthen the water resources.
