Analysis on precipitation variation characteristics of Xiangyang River Basin during 1979-2014

4th International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Hu, Chao^1 ; Wu, Yuliang^2 ; Han, Weichang^1

School of Water Conservancy and Environment, University of Jinan, Jinan

250002, China^1

Shandong Shuizhiyuan Water Conservancy Planning and Design Co. Ltd., Jinan

250014, China^2

关键词: Concentration degree;    Hanjiang rivers;    Precipitation variation;    Rainfall characteristics;    Rainfall data;    Rainy seasons;    Research object;    Resource management;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/237/2/022042/pdf
DOI  :  10.1088/1755-1315/237/2/022042

学科分类：环境科学（综合）

来源: IOP

【 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.