Abstract：Based on the precipitation data at 22 rain stations from 1974 to 2013 in Southern Liaoning Province， the spatial and temporal allocations of precipitation in this area were analyzed. The temporal trends were analyzed using the method of Moving Average (MA)， polynomial regression (PR)， and Mann-Kendall (M-K). Variance analysis method was adopted to analyze the change of cycle. The spatial characteristics of precipitation were analyzed using ArcGIS. The results show that the annual variations of precipitation are significant; the annual precipitation mainly concentrates in summer; except the yearly precipitation has a significant increasing trend in Changhai County，as well as in dry season of Changhai and Pulandian Counties. The precipitation trend in most area of Southern Liaoning Province is stable. The spatial distribution of precipitation in Southern Liaoning Province is non-uniform with the declining trend from the northeast to the southwest. In conclusion, Dalian City will be vulnerable to drought disasters in case of lack of precipitation.
张 静 段丽敏 何俊仕. 辽宁省辽南地区近40年降水时空变化特性分析[J]. 中国防汛抗旱, 2017, 27(3): 62-66.
Zhang Jing， Duan Limin， He Junshi. Spatiotemporal variation of precipitation in Southern Liaoning Province during past 40 years. journal1, 2017, 27(3): 62-66.
2017, Vol. 27 
